FOR BIDDING PURPOSES ONLY
Project Specifications
Fashion Institute of Technology Student Housing Corporation
PROJECT: # C1331
PROJECT TITLE: ALUMNI RESIDENCE HALL CONCRETE ENCASED CONDUIT BANK OF IT AND RECONSTRUCTION OF EXTERIOR RAMP 210 WEST 27TH STREET NEW YORK, NY
FIT STUDENT HOUSING CORPORATION PROJECT #C ALUMNI HALL CONCRETE ENCASED CONDUIT BANK OF IT AND RECONSTRUCTION OF EXTERIOR RAMP
SPECIFICATION TABLE OF CONTENTS
GENERAL CONSTRUCTION
DIVISION 1 – GENERAL REQUIREMENTS 01 10 00 - SUMMARY OF WORK 01 33 00 - SUBMITTALS 01 73 29 - REMOVALS, CUTTING, AND PATCHING 01 74 19 - CONSTRUCTION WASTE MANAGEMENT
DIVISION 2 – EXISTING CONDITIONS 02 08 30 - REMOVAL OF UNIVERSAL WASTE AND MISCELLANEOUS HAZARDOUS MATERIALS 02 33 13 – UNDERGROUND UTILITY LOCATOR SERVICE 02 41 13 - SELECTIVE REMOVALS & DEMOLITION
DIVISION 3 – CONCRETE 03 11 00 – CONCRETE FORMWORK 03 20 00 – CONRETE REINFORCMENT 03 30 00 – CAST IN PLACE CONCRETE 03 45 00 – ARCHITECTURAL PRECAST CONCRETE TRIM
DIVISION 4 – MASONRY 04 01 20 – UNIT MASONRY RESTORATION 04 01 21 – MASONRY RESTORATION 04 01 23 – MASONRY CLEANING 04 05 13 – MORTAR AND MASONRY GROUT 04 21 13 – BRICK MASONRY
DIVISION 5 – METALS 05 51 20 - STRUCTURAL STEEL 05 52 00 – STRUCTURAL GLASS RAILING SYSTEM
DIVISON 7 – THERMAL AND MOISTURE PROTECTION 07 60 00 – FLASHING & SHEET METAL
DIVISON 26 – ELECTRICAL 26 05 29 – FASTENERS, ATTACHMENTS & SUPPORTING DEVICES 26 05 33 – RACEWAYS AND BOXES FOR ELECTRICAL SYSTEMS 26 05 43 – UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL SYSTEMS 26 05 44 – SLEEVES AND SLEEVE SEALS FOR ELECTRICAL RACEWAYS AND CABLING
TABLE OF CONTENTS - 1 FIT STUDENT HOUSING CORPORATION PROJECT #C ALUMNI HALL CONCRETE ENCASED CONDUIT BANK OF IT AND RECONSTRUCTION OF EXTERIOR RAMP
DIVISION 31 – EARTHWORK 31 00 00 – EARTHWORK 31 25 13 – EROSION AND SEDIMENT CONTROL 31 40 00 – SHORING AND UNDERPINNING
DIVISON 32 – EXTERIOR IMPROVEMENTS 32 13 01 – CONCRETE WALKS 32 13 73 – CONCRETE PAVING JOINT SEALANTS
DRAWING LIST
ARCHITECTURAL
1. T-000.00 COVER SHEET
2. G-001.00 GENERAL NOTES, LEGEND, SYMBOLS, ABBREVIATIONS, & DRAWING LIST
3. G-002.00 FLOOD INSURANCE RATE MAP 2013 PRELIMINARY
4. G-003.00 FLOOD INSURANCE RATE MAP 2007
5. DM-001.00 DEMOLITION PLAN
6. A-100.00 CONSTRUCTION PLAN
7. A-101.00 SITE & CELLAR PLAN NEW CONDUIT ROUTING
8. A-200.00 SECTION DETAILS, AND ELEVATIONS
9. A-201.00 SECTION DETAILS, AND ELEVATIONS
10. A-202.00 SECTION DETAILS, AND ELEVATIONS
11. A-203.00 SECTION DETAILS, AND ELEVATIONS
END OF TABLE OF CONTENTS
TABLE OF CONTENTS - 2 FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK OF IT AND RECONSTRUCTION OF EXTERIOR RAMP
SECTION 01 10 00 - SUMMARY OF WORK
PART 1 - GENERAL
1.1 WORK COVERED BY CONTRACT DOCUMENTS
A. The work to be done under the Contract, in accordance with the Contract Documents, consists of performing, installing, furnishing and supplying all materials, equipment, labor and incidentals necessary or convenient for the construction of the referenced renovation project at the Fashion Institute of Technology and carrying out all of the duties and obligations imposed upon the Contractor by the Contract Documents. B. Contractor shall provide temporary lighting for the duration of the Project as needed. C. The main features of the work as indicated in plans shall include, but not be limited to the following:
Project Scope: 1. General Contractor is responsible to coordinate with Electrical Contractors and provide coordination drawings for review by the Architect for locations of all openings and penetrations in walls, sidewalks and steps, including but not limited to: back boxes, conduit runs, etc. 2. The sequence of work is critical. The removal and shoring of the existing ramp must take place first. Then the trench must be excavated prior to the penetration of the foundation wall. Contractor is responsible for keeping all stairs and temporary ramps free from construction debris and safe from pedestrians entering the zone from the Alumni Hall main doors. 3. During construction the building will be fully occupied by students and the College President and the Residential Life Staff. Contractor is responsible for proper staging as follows: a) Keep both sets of doorways open and full access/emergency egresses open at all times for pedestrians down the temporary ramp or down the main stairs. b) Emergency stairs may NOT be blocked at ANY time during construction and/or demolition. c) A three-foot wide (minimum) egress way must be maintained at all times for occupants to exit safely. d) Contractor to protect all finished work. e) Hours of operation for construction to be verified with College Facilities Department prior to start.
Demolition: General Construction 1. See Demolition Drawings for extent of Demolition.
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New General Construction: 1. Install concrete encased conduit bank for IT and install precast hand hole. 2. Repair existing cheek walls as indicated on drawings. 3. Replace all railings with new, as indicated on drawing. 4. Replace concrete cap on cheek walls, as indicated on drawing. 5. Backfill stairs and under pavement as per drawings and specifications. 6. Replace all broken concrete from demolitions with new. 7. Penetrate foundation wall and cap all pipes at minimum 6” beyond wall. 8. Install Link-Seals as indicated. 9. Replace concrete on ramp and platform into building. 10. Repair interior foundation wall, paint to match existing.
New Electrical Work 1. Furnish and install all conduits as described in drawings and in specifications.
1.2 RELATED SECTIONS
A. All Specifications listed in Table of Contents.
1.3 PHYSICAL COMPLETION DATE
A. Physically complete the Work within FIT's established calendar after the Agreement is approved by the College.
1.4 ITEMS NOT INCLUDED
A. The following items shown on the drawings are not included in this Contract: 1. Items indicated “NIC” (Not in Contract). 2. Existing construction, except where such construction is to be removed, replaced, or altered.
1.5 EXAMINATION OF PREMISES
A. Verification of Existing Conditions after Award 1. Various existing conditions at locations of the Work which cannot be determined until removals are under way cannot be indicated on the Drawings or described in the Specifications.
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2. Perform all such removals as required to verify all existing conditions before fabricating the work. 3. Shore existing ramp both sides to assure no collapse of ramp or damage to the building. 4. Where applicable, before disturbing any structural work, make all possible preliminary investigations to verify the existing conditions threat. Notify Architect of any existing conditions not previously documented prior to proceeding with work. 5. Where removals or preliminary investigations reveal existing conditions that differ materially from what is indicated or specified, or that may require changes, immediately notify the Architect in writing and await instructions before proceeding further with that part of the work. B. Discrepancies in Existing Conditions: 1. During the process of the Work, should conditions be encountered that materially differ from those shown on the Drawings or indicated in the Specifications, or conditions which could not reasonably have been anticipated, which conditions will materially affect the cost of the Work, such conditions shall immediately be called to the attention of the Architect, before they are further disturbed. The Architect will promptly investigate the conditions and if it is found that they do so materially differ, shall issue a clarification.
1.6 CONNECTION TO ELECTRICAL EQUIPMENT OR SYSTEMS
A. Contractor will not be allowed to tie into electrical equipment or systems until the F.I.T. Facilities Management Department has reviewed and approved the connection. 1. Submit written procedures to the FIT Facilities Management Department, detailing how the connection Work is proposed to be performed. 2. After procedures have been approved, notify the FIT Representative at least 3 working days prior to the connection Work so that arrangements can be made to have a FIT Facilities Management Department Representative witness the Work.
1.7 CONTRACTOR USE OF PREMISES
A. Comply with the Facility’s Visitor Identification Policy. A copy of the current policy will be distributed at the initial job meeting. B. Work hours shall be as established by the Facilities Representatives. C. Check in with the Facility Representative, as directed, at the beginning of each work day. Furnish information regarding where employees will be working during the day and indicate what is the general nature of the work.
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D. Comply with applicable Federal and State of New York Right-to-Know Law provisions and supply copies of the appropriate Material Safety Data Sheets (MSDS) to the FIT Facility’s Safety Information Officer. E. Do not diminish the level of life safety during performance of the Work. F. Contractor responsible to coordinate with Owner and make all necessary previsions to receive materials and remove debris.
1.8 REFERENCE SPECIFICATIONS AND STANDARDS
A. Comply with the requirements of the various standards referred to in these specifications, except where they conflict with the requirements of these specifications. In case of conflict, notify architect prior to proceeding. Such reference standards shall be the date of latest revision in effect at the time of receiving bids, unless the date is given.
1.9 LAYOUT
A. Examine the Contract Documents thoroughly and promptly report any errors or discrepancies to the Architect before commencing the Work. B. Lay out the Work in accordance with the Contract Documents.
1.10 CLEAN-UP
A. Clean up and containerize the rubbish (refuse, debris, waste materials, and removed materials and equipment) resulting from the Work at the end of each work day and leave work areas broom swept clean. Locate containerized rubbish where directed. B. Remove piled rubbish from property at least once a week or more often if the rubbish presents a hazard. Properly dispose of rubbish. Burning of rubbish will not be permitted. C. Tape off area with fluorescent caution tape and close all holes before leaving job site to ensure safety of all pedestrians at the end of each work day.
1.11 SUSTAINABILITY REQUIREMENTS
A. The Contractor shall meet sustainability performance and documentation requirements to comply with New York City Local Law 86 of 2005, and to achieve the following objectives: sustainable site use, water use reduction, and conservation of energy and resources, and improvement of indoor environmental quality.
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B. Sustainability performance requirements include, but are not limited to: water use reduction, energy conservation, construction waste management, and indoor air quality controls during construction and prior to occupancy. C. Sustainability documentation requirements include, but are not limited to, Contractor’s Certification Form, cost information, documentation on VOC content, urea-formaldehyde content and recycled and regional content.
1.12 NEW YORK CITY CODE OF 2014 IMPLEMENTATION
A. Beginning 2014, the New York City Construction Code went into effect. The Controlled Inspections supersede requirements contained in the 1968 and 2008 Building Code, and all codes that deal with protection of the public. 1. References to “Controlled Inspections” and applicable code sections and “Controlled Inspector” referenced in the Contract Documents shall mean the equivalent “Special Inspection” and “Special Inspector” in accordance with the 2014 NYC Construction Code. It shall be noted that some individual “Controlled Inspection” items have been combined into one “Special Inspection” category. 2. References to public protective’s and code sections included in Chapter 19 of the 1968 code referenced in the Contract Documents shall mean those equivalent Sections contained in Chapter 33 of the NYC Construction Code. The Contractor shall be responsible for complying with all provisions of the 2014 NYC Construction Code.
END OF SECTION 01 10 00
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SECTION 01 33 00 - SUBMITTALS
PART 1 - GENERAL
1.1 DEFINITIONS
A. Deviation: Changes in products, materials, equipment and methods of construction from those required by the Contract Documents and proposed by the Contractor.
1.2 DEVIATIONS FROM REQUIREMENTS OF THE CONTRACT DOCUMENTS
A. Deviations from the requirements of the Contract Documents will not be allowed unless a request for deviation is made in writing prior to or at the time of submission and the specific deviation is approved by the Owner or Architect. The submission of a deviation shall be done in a timely manner according to the schedule of submittals to allow the Architect sufficient time for review.
1.3 “OR EQUAL” TO BRAND NAME PRODUCTS
A. Whenever a product is specified by brand name, a comparable brand, equal to that named, may be submitted for approval subject to: 1. The contractor shall bear the burden of proving that the proposed product is equal to the specified product. The submission of an “or equal” shall be done in a timely manner to allow sufficient time to review the proposed product by the Architect. 2. Whenever a color or pattern is indicated by a specific manufacturer’s name or number, the intent is to communicate the required color or pattern of the material. Other manufacturers’ comparable colors or patterns may be submitted for approval as equal.
1.4 ADMINISTRATIVE REQUIREMENTS
A. Identify all submittals by project title and number. Include Contractor’s name, date, and revision date. On shop drawings, product data and samples, also include the name of the supplier and subcontractor (if any), and applicable specification section number. Stamp each submittal and initial or sign the stamp to certify review and approval of submittal. B. Assemble submittals in accordance with the requirements in the individual sections of the Specifications and as required by this section. It is the Contractor's responsibility to review and verify that all information required for each submittal is included in the submittal package. Errors or omissions found by the Contractor
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are to be corrected prior to the submission of the submittal package for approval. Incomplete submittal packages that have been submitted for review and approval will be returned. 1. It is the Contractor's responsibility to verify that portions of the submittal package to be provided by a subcontractor (or supplier) are complete, as well as portions of the submittal package being provided directly by the Contractor. 2. Do not combine the submittals of more than one specification section with submittals required by other specification sections unless specifically stated in the contract specifications. C. If a submittal is based on, or the result of, a change order or field order to the Contract documents, include copies of the applicable change order or field order with the submittal.
1.5 COORDINATION DRAWINGS
A. Provide coordination drawings showing scope of all work. Coordination drawings to indicate any conflicts between services or ceiling heights as indicated on Architectural Drawings or otherwise specified.
1.6 SHOP DRAWINGS
A. Provide shop drawings in the format required by the specifications. Show the information, dimensions, connections and other details necessary to insure that the shop drawings accurately interpret the Contract Documents. Show adjoining construction in such detail as required indicating proper connections. Where adjoining connected construction requires shop drawings or product data, submit such information for approval at the same time so that connections can be accurately checked. 1. Submit 4 copies of each shop drawing required by the Specifications.
B. Have shop drawings prepared by a qualified detailer. Shop drawings shall be neatly drawn and clearly legible. Machine duplicated copies of Construction Drawings will not be accepted as shop drawings. 1. Where shop drawings are indicated to be drawn to scale: a. Use scale normally found on an “Architect” scale. b. Written Scale: Clearly label scales being used on each drawing and/or on each detail on the drawing. 1) Examples: 1/8” = 1’-0” c. Graphic Scale: Adjacent to each Written Scale, provide a graphic scale delineating the scale being used. Graphic scale shall be divided into measuring units relating to the accuracy required for the drawing or details. d. Clearly dimension key elements of the drawing or detail.
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2. When the drawing sheet is printed full size, the minimum text size shall be 1/8" (3.2 mm) for hand drafting and 3/32" (2.5 mm) for CADD drawings. C. The shop drawings will be reviewed and 2 stamped copies returned. If returned copies are stamped “DISAPPROVED” or “RETURNED FOR CORRECTION”, promptly resubmit 4 copies of shop drawings meeting Contract requirements. D. Contractor is responsible for keeping one record set of all shop drawings on the job site, no matter the stamp.
1.7 PRODUCT DATA
A. Provide product data in the format required by the specifications. Modify product data by deleting information that is not applicable to the project or by marking the product data to identify pertinent products. Supplement standard information, if necessary, to provide additional information applicable to project. 1. Submit 4 copies of product data as required by the Specifications. B. The product data will be reviewed and 3 stamped copies returned. If returned copies are stamped “DISAPPROVED” or “RETURNED FOR CORRECTION”, promptly resubmit 4 copies of product data meeting Contract requirements. C. Contractor is responsible for keeping one record set of product data on the job site, no matter the stamp.
1.8 QUALITY ASSURANCE
A. Provide quality assurance information in the format required by the specifications, including supporting documentation as required. 1. Submit 4 copies of quality assurance information as required by the Specifications. B. The quality assurance information will be reviewed and 3 stamped copies returned. If returned copies are stamped “DISAPPROVED” or “RETURNED FOR CORRECTION”, promptly resubmit 6 copies of quality assurance information meeting Contract requirements.
1.9 SAMPLES
A. Submit 2 (unless a different number is specified) of each sample required by the Specifications. B. One sample will become the property of the Owner when submitted and will not be incorporated in the Work unless specifically stated otherwise. One sample will be returned approved or rejected to the contractor.
1.10 REVIEW OF SUBMITTALS
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A. Items submitted for review will be reviewed for compliance with the contract documents, based upon the information submitted. The items will be acted upon with the following dispositions: 1. Approved (or No Exception Taken): Where the submittal is marked “Approved”, the work covered by the submittal may proceed provided it complies with the contract documents. Final acceptance will depend on that compliance. 2. Approved as Noted (or Furnish as Noted): Where the submittal is marked “Approved as Noted”, the work covered by the submittal may proceed provided it complies with the review comments noted on the submittal and the contract documents. Final acceptance will depend on that compliance. 3. Revise and Resubmit: Where the submittal is marked “Revise and Resubmit”, do not proceed with the work covered by the submittal, including purchasing, fabrication, delivery or other activity for the item submitted. Revise or prepare a new submittal according to the review comments noted on the submittal and meeting the contract documents. 4. Disapproved (or Rejected): Where the submittal is marked “Disapproved”, do not proceed with the work covered by the submittal, including purchasing, fabrication, delivery or other activity for the item submitted. Prepare a new submittal according to the review comments noted on the submittal and meeting the contract documents.
1.11 SCHEDULES AND RECORDS
A. Submit the following Schedules and Records information not later than 7 days after approval of the Contract unless an earlier submission is required to properly schedule or progress the Work. 1. SCHEDULE OF SUBMITTALS: On the Schedule of Submittals forms, indicate in the spaces following each item, the date the item will be submitted, the date approval is required, and the date delivery of the material or equipment is necessary for timely completion of the Work in accordance with the Project Schedule. The date entered for submittal of each item is the last day a deviation will be considered. Deliver the SCHEDULE OF SUBMITTALS to the Architect and Owner. B. Warrantees: Unless specified elsewhere contractor shall warrantee all work for (1) one year.
END OF SECTION 01 33 00
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SECTION 01 73 29 - REMOVALS, CUTTING AND PATCHING
PART 1 – GENERAL
1.1 GENERAL REQUIREMENTS
A. Work under this section shall be governed by the Contract Documents. Provide materials, labor, equipment and services necessary to furnish, deliver and install all work of this section as shown on the drawings, as specified herein, and/or as specified by job conditions.
1.2 DESCRIPTION OF WORK
A. Provide materials, labor, equipment and services to complete cutting and patching as specified herein and as indicated on the Drawings.
1.3 RELATED WORK SHOWN ELSEWHERE
A. Selective Removals and Demolition - Section 02 41 13
1.4 QUALITY ASSURANCES
A. Codes and Regulations 1. Work specified herein shall conform to all applicable State and Local codes and regulations having jurisdiction.
1.5 SUBMITTALS
A. Product Literature 1. Submit manufacturers' products literature, catalog cuts and data sheets for all products used in patching.
1.6 DELIVERY, STORAGE AND HANDLING
A. Deliver materials to the site, ready for use in the manufacturer's original and unopened containers and packaging, bearing labels as to type of material, brand name and manufacturer's name. Delivered materials shall be identical to approved samples. B. Store materials under cover in a dry and clean location, off the ground. Remove materials which are damaged or otherwise not suitable for installation from the job site and replace with acceptable materials.
1.7 ENVIRONMENTAL REQUIREMENTS
A. All work to proceed according to the exterior temperate influences. Materials to be
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protected as outlined herewith. Concrete to be poured according to weather conditions.
PART 2 – PRODUCTS
2.1 MATERIALS
A. Match the appearance and performance of existing corresponding materials as closely as practicable, unless otherwise indicated.
PART 3 – EXECUTION
3.1 MANUFACTURERS
A. Do not disturb any existing structure, piping, apparatus, or other construction unless required by the Contract. B. Cut and alter existing materials as required to perform the Work. Limit cutting to the smallest amount necessary. Core drill round holes and saw-cut other openings where possible. C. Remove existing construction as required to re-install as well as install and connect the Work to adjacent construction in an approved manner. Remove materials and equipment superseded by the Work unless specifically indicated otherwise. D. Provide temporary supports and shoring as necessary to prevent settlement, caving of existing structures or other damage to existing construction which is to remain. E. Perform the cutting, drilling, and removals in a manner which will prevent damage to adjoining construction which is to remain. F. Prior to any cutting, drilling, or removal, investigate both sides of the surface involved. G. Determine the exact location of all structural members. Do not cut, drill, or remove structural members such as joists, beams, or columns supporting construction that is to remain unless expressly required by the Work. If unforeseen obstructions are encountered, take all precautions necessary to prevent damage and obtain instructions from the FIT Representative before proceeding with the Work. H. If existing items to remain or for reuse are within the damaged area, these items shall be removed and carefully stored until they can be reinstalled.
3.2 PATCHING
A. Patch existing construction and finishes defaced, damaged, or left incomplete due to alterations and removals. Patching, except as otherwise indicated, shall be limited to the areas which have been cut or altered. B. Prepare existing surfaces properly to receive and, where required, bond with the
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new Work. C. Unless otherwise indicated, provide new materials to match the appearance and performance of existing corresponding materials or those specified as closely as practicable. D. Patch areas and surfaces which will remain exposed by removals to match existing adjacent surfaces as closely as practicable using same type of material.
3.3 REINSTALLATION
A. Where reinstallation of existing, remaining items removed during cutting is required, reinstall them to a condition equal to or better than their condition before removal.
END OF SECTION 01 73 29
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SECTION 01 74 19 - CONSTRUCTION WASTE MANAGEMENT
PART 1 – GENERAL
1.1 SUMMARY
A. This Section includes requirements for Construction Waste Management (CWM), with criteria for recycling and/or salvaging demolition and construction waste generated during the project. A Construction Waste Management Plan shall be developed for approval by the Facilities Representative. The Plan shall be implemented throughout the duration of the project, and shall be documented in accordance with the SUBMITTALS Article below. B. Each contract shall supply the means for recycling job site waste. Locations for removal bins or dumpsters shall be coordinated with Facilities Representative. Following contract award, the Contractors may elect a single entity to act as the construction waste manager.
1.2 PERFORMANCE REQUIREMENTS
A. The General Contractor shall prepare and submit a Construction Waste Management Plan (CWM) to the Facilities Representative for approval. The CWM Plan shall outline the provisions to be implemented to recycle and salvage demolition and construction waste generated during the project. B. Upon approval of the CWM Plan by the Facilities Representative, it shall be implemented throughout the duration of the project, and documented in accordance with the SUBMITTALS Article below. C. The Construction Waste Management Plan shall include, but not be limited to, the following components: 1. Listing of Targeted Materials: Develop a list of the waste materials from the Project that will be targeted for reuse, salvage, or recycling. The following materials shall be accounted for (materials that will not be recycled shall be indicated as such):
a. Cardboard, paper, packaging. b. Clean dimensional wood, palette wood. c. Beverage containers. d. Metals, piping, rebar, other trim, steel, iron, stainless steel, aluminum, copper, zinc, lead, brass, and bronze. e. Brick 2. Information: Provide the name of the landfill(s) where trash will be disposed of and the applicable landfill tipping fee(s). 3. Sorting Method: Provide a description of the proposed means of sorting and transporting the recyclable materials (whether materials will be site-separated
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and self-hauled to designated centers, or whether mixed materials will be collected by a waste hauler and removed from the site for off-site sorting). 4. Packaging Waste: Provide an estimate of packaging materials generated, and note whether suppliers will eliminate or take back packaging. 5. Field Conditions: Include provisions in the Construction Waste Management Plan for addressing conditions in the field that do not adhere to the CWM Plan, including provisions to implement a stop work order, or to rectify non- compliant conditions. 6. Recycling facilities: Provide the name of the recycling facilities(s) where materials will be sent for recycling, how it will be recycled, and the applicable fee(s). 7. Additional Information: Include any additional information deemed relevant to describe the scope and intent of the CWM Plan to the Facilities Representative. 8. Re-Used materials/Equipment: Materials or equipment to be removed from the site or turned over to the College which are classified as recycled materials shall be documented. Documentation shall include the materials turned over, weight or quantity of materials/equipment and a letter on company letterhead indicating the intended use of items. 9. Subcontractor Requirements: Construction Waste Management and recycling requirements shall be incorporated into all Subcontractor’s contracts.
1.3 SUBMITTALS
A. Submittal Requirements: 1. A copy of the Construction Waste Management Plan, as defined in the PERFORMANCE REQUIREMENTS Article above. 2. In conjunction with payment applications, contractors shall submit a monthly Waste Management submission. This submission shall include waste receipts for the payment period and a completed Waste Management Form for the same payment period.
3. Calculations and supporting documentation to demonstrate end-of–project recycling rates meeting the requirements of the Construction Waste Management Plan. The process for recording and assembling documentation shall be as follows: a. Record and document the total weight (in tons) of all demolition and construction waste materials sent to the landfill. Monthly Waste Management Reporting Forms (sample included at the end of this Section identified as Exhibit “A”) shall be used as the basis for determining the total amount of waste landfilled for the project. The monthly reporting forms shall specify:
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1) The number of dumpsters or other containers sent to the landfill for that month. 2) The volume (in cubic yards) of each dumpster or container sent to the landfill for that month. 3) The type of waste contained in each dumpster or container. 4) The weight of the waste in each dumpster or container. If the weight of the waste is not directly measured for each dumpster or container, the following Solid Waste Conversion Factors shall be used to convert the volume of waste to weight: Solid Weight Conversion Factors Mixed Waste 350 lbs/cubic yard Cardboard 100 lbs/cubic yard Backfill 1,000 lbs/cubic yard Rubble/Concrete 1,400 lbs/cubic yard Steel/Rebar/WWM 1,000 lbs/cubic yard 5) Identification of the landfill. In addition, provide the name of the landfill that will be accepting the materials. Receipts or other proof of facility reception of materials is required. b. Record and document the total weight (in tons) of all demolition and construction waste materials recycled or salvaged. Monthly Waste Management Reporting Forms shall be used as the basis for determining the total amount of waste recycled or salvaged for the project. The monthly reporting forms shall specify: 1) The number of dumpsters or other containers of recycled or salvaged materials for that month. 2) The volume (in cubic yards) of each dumpster or container of recycled or salvaged materials for that month. 3) The type of recycled or salvaged material contained in each dumpster or container. 4) The weight of the recycled or salvaged material in each dumpster or container. If the weight of the material is not directly measured for each dumpster or container, the Solid Waste Conversion Factors listed for landfill waste above shall be used, where applicable, to convert the volume of material to weight. For materials not contained in the Solid Waste Conversion Factors above propose a conversion factor for review by the Director’s Representative. 5) In addition, provide the name of the receiving facilities/companies that will be purchasing or accepting the recycled or salvaged materials. Receipts or other proof of facility reception of materials is required.
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6) For materials separated for recycling off-site, establish a method for tracking the weight of the recycled material. The method shall be included in the CWM Plan for the Director’s Representative review and approval. c. Calculate the end-of-project recycling rate percentage by dividing the recycled and salvaged waste (in tons) by the total waste generated (recycled, salvaged, and landfilled waste – also in tons), and multiplying by 100. d. For materials turned over to others for reuse, provide documentation on company letterhead indicating the material(s), the quantity (either by weight or units), the date and the intended reuse of the product.
PART 2 – PRODUCTS (NOT USED)
PART 3 – EXECUTION
3.1 IMPLEMENTATION
A. The General Contractor shall be responsible for the provision of containers and the removal of all waste, non-returned surplus materials, and rubbish from the site in accordance with the Waste Management Plan. The General Contractor shall oversee and document the results of the Plan. The Sub-Contractors shall be responsible for collecting, sorting, and depositing in designated areas, their waste, non-returned surplus materials, and rubbish, as per the Waste Management Plan.
B. Instruction. The General Contractor shall provide on-site instruction of appropriate separation, handling and recycling, salvage, reuse and return methods to be used by all parties in appropriate stages of the Project. C. Separation Facilities: The General Contractor shall lay out a specific area(s) to facilitate separation of materials for potential recycling, salvage, reuse and return. Each potential material shall be collected and stored to avoid being mixed with other materials. Recycling and waste bin areas are to be kept neat and clean, and clearly marked.
3.2 MEETINGS
A. Conduct Construction Waste Management meetings. Meetings shall include Subcontractors affected by the CWM Plan. At a minimum, waste management goals and issues shall be discussed at the following meetings: 1. Pre-bid meeting. 2. Pre-construction meeting. 3. Regular job-site meetings.
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3.3 MONTHLY WASTE MANAGEMENT REPORTING FORMS
A. Monthly Waste Management Reporting Forms, as required in the SUBMITTALS Article above, shall be submitted to the Facilities Representative and Architect for review throughout the duration of the project.
END OF SECTION 01 74 19
CONSTRUCTION WASTE MANAGEMENT 01 74 19 - 5 (Project Name) (Exhibit “A”) CONTRACTOR C&D WASTE MANAGEMENT FORM For Waste Generated On-Site
Company: ______
Contact: ______
Phone: ______
Material Description (Include packaging waste if Total Weight % Reused % Recycled % Sent to Material Recipient applicable) on-site off-site landfill
Recycled Material: Material that would otherwise be destined for landfill but is diverted from the waste stream, reintroduced as material feedstock and reprocessed into new end products. Reused Material: Materials that can be reused in their original form without any reprocessing.
CONSTRUCTION WASTE MANAGEMENT 01 74 19 - 6
FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK OF IT AND RECONSTRUCTION OF EXTERIOR RAMP
SECTION 02 08 30 REMOVAL OF UNIVERSAL WASTE AND MISCELLANEOUS HAZARDOUS MATERIALS
PART 1 GENERAL
1.1 GENERAL REQUIRMENTS
A. Description Of Work
1. This work shall include proper removal, storage, transportation and recycling or lawful disposal of Universal Waste and Miscellaneous Hazardous Materials affected by this project, to include fluorescent light bulbs, smoke detectors, batteries, and electrical circuit boards. Table 1 below summarizes the Universal Waste and Miscellaneous Hazardous Materials that require removal for this project.
Table I - Summary of Universal Waste & Miscellaneous Hazardous Materials Fashion Institute of Technology Student Housing Corporation Alumni Residence Hall Concrete Encased Conduit Bank of IT and Reconstruction of Exterior Ramp 210 West 27th Street, New York, NY Total Description of Material Location Unit Quantity
Total Material Quantities
B. Submittals
1. Before Start of Work: Submit the following to the Owner's Representative for review. Work shall not commence until these submittals are returned with approval from the Owner's Representative.
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a. Copy of State or local license for hazardous waste hauler; b. Certification of at least one on-site supervisor which has satisfactorily completed the OSHA 40 Hour Health and Safety Course for Handling Hazardous Materials c. Certificates of workers which have successfully completed at least the OSHA 40-Hour Health and Safety Course for Hazardous Materials; d. Certificates of workers which have successfully completed the required employee training for universal waste or appropriate type of training to the type of wastes being managed; e. Schedule of start and finish times and dates for this work; f. Name and address of the universal waste handler or a destination facility where the waste materials is to be treated, deposited or recycled in accordance with all regulatory requirements (include contact person and telephone numbers), if the universal waste meets the definition of hazardous waste, the name and address of the hazardous waste treatment, storage and disposal (TSD) facility; g. Material Safety Data Sheets for all materials requiring removal; h. If Contractor introduces any chemical into the work environmental, a MSDS for that chemical is required before use; i. Contingency Plan for handling emergency spills or leaks; j. Provide a copy of the NYS DEC Part 364 Waste Transporter permit for Universal Waste Transporters that transport more than 500 pounds of universal waste in a single shipment since they must be a permitted hazardous waste transporter. k. Large Quantity Handlers of universal waste must provide documentation of notification to the EPA and/or the appropriate local government agency in advance of its intentions to transport the waste and receive from the facility or provide an EPA identification number prior to exceeding 5,000 kilograms of waste on-site.
C. Definitions 1. Large Quantity Handler (LQH) of Universal Waste shall be a waste handler who accumulates 5,000 kilograms or more of universal waste (batteries, pesticides, thermostats, or lamps, calculated collectively) at any time. This designation as a large quantity handler of universal waste is retained through the end of the calendar year in which 5,000 kilograms (11,000 pounds) or more total of universal waste is accumulated. The LQH shall notify the EPA, acquire or co- ordinate with a facility regarding an EPA identification number, and provide records for each shipment. The LQH shall ensure all employees are thoroughly familiar with proper waste handling and emergency procedures, relative to their responsibilities during normal facility operations and emergencies. 2. Small Quantity Handler of Universal Waste (SQH) shall be a waste handler who does not accumulate 5,000 kilograms (11,000 pounds) or more of total universal
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waste (batteries, pesticides, thermostats, or lamps, calculated collectively) at any time. 3. Destination Facility shall be a facility that legitimately and can legally accept universal waste from offsite so that the universal waste can be treated, disposed, or recycled in accordance with the regulatory requirements. 4. Universal Waste Transporter shall be anyone who transports universal waste. In New York, universal waste transporters that transport greater than 500 pounds of universal waste in a single shipment must be a permitted hazardous waste transporter pursuant to Federal and State regulations. Proper notification with the receiving handler agreeing to receive the shipment is required by the Universal Waste Transporter. 5. Employee training shall ensure that all employees are thoroughly familiar with proper waste handling and emergency procedures, relative to their responsibilities during normal operations and emergencies and to the type of waste they are handling. 6. Universal Waste Regulations – Universal Waste Rule - 40 CFR Part 273, New York State – Standards for Universal Wastes 6 NYCRR Subpart 374-3.
1.2 PRODUCTS
A. Materials
1. Polyethylene Sheet: A single polyethylene film in the largest sheet size possible to minimize seams, 6.0 mil thick, clear, frosted, or black. 2. Duct Tape: Provide duct tape in 3" widths, witty an adhesive which is formulated to stick aggressively to sheet polyethylene. 3. Spray Cement: Provide spray adhesive in aerosol cans which is specifically formulated to stick tenaciously to sheet polyethylene. 4. Disposal Bags: Provide 6 mil thick leak-tight polyethylene bags. 5. Labels: As required by the EPA and OSHA for handling, transportation, and disposal of hazardous waste. 6. Drums: Recovery or salvage drums acceptable for disposal of hazardous waste. Prior approval of drums is required. Drums or containers must meet the required OSHA EPA (40 CFR Parts 264265 and 300), and DOT regulations (49 CFR Parts 171-178). Use of damaged drums will not be allowed.
1.3 EXECUTION A. Universal Waste
1. Once the properly labeled containers holding the universal waste have been filled and sealed, they shall be stored in designated accumulation areas as approved by the Owners Representative. The Contractor shall not store waste in transportation vehicles, or store waste onsite for more than one year from when the waste has been generated.
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2. Documentation when a universal waste in storage was first accumulated shall be provided. This is to be done by dating and labeling the waste with the date of the earliest accumulation that can document the length of time the universal waste has been accumulated. 3. Maintenance of an inventory system on-site that identifies the earliest date that any universal waste in a group of universal waste items or a group of containers of universal waste became a waste was received. 4. Any waste developed from the work that exhibits one or more characteristics of hazardous waste must be handled accordingly and not as a universal waste.
B. Off-Site Shipment of Universal Waste 1. Off-Site shipments shall meet the requirements for offsite shipments, as such, the Contractor is prohibited from sending or taking universal waste to a place other than a designated universal waste handler or a universal waste destination facility. 2. LQH’s of universal waste must notify EPA in writing and develop an EPA identification number or co-ordinate with the facility regarding use of their EPA identification number, prior to exceeding 5,000 kilograms of universal waste onsite. 3. SQH’s do not need to notify EPA, receive and EPA identification number or keep records of shipments of universal waste. 4. LQH’s must keep a record of all universal waste shipments received or sent offsite, and must retain those records for at least three years from the date of receipt or shipment. Records may include invoices, manifests, logs, bills or lading, or other shipping documents.
C. Storage Of Hazardous Waste (if required)
1. Once the properly labeled containers holding the hazardous waste have been filled and sealed, they shall be stored in designated areas as approved by the Owners Representative. The Contractor shall not be allowed to store the hazardous waste for more than the storage limitations relating to quantities stored and the length of time the material may be stored. 2. Documentation when a hazardous waste in storage was first stored shall be provided. This is to be done by dating and labeling the waste with the date of the earliest accumulation that can document the length of time the hazardous waste has been accumulated. 3. Maintenance of an inventory system on-site that identifies the earliest date that any hazardous waste was placed into proper storage.
D. Off-Site Shipment of Hazardous Waste
1. Off site shipments shall meet the requirements for offsite shipments and the Contractor is prohibited from sending or taking hazardous waste to a place other than an authorized treatment, storage and disposal (TSD) facility.
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2. An EPA identification shall be developed or provided by the facility. 3. A copy of the transporter’s Part 364 Permit shall be provided to the Owner’s Representative and the facility representative. 4. A copy of all waste manifests and any test results or waste analysis utilized for the off-site transportation and disposal shall be submitted to FIT.
E. Records 1. For all Universal Waste and Miscellaneous Hazardous Materials removed under this project, the Contractor shall provide a copy of the following documentation to the owner within 60 days of removing waste from campus: i. Hazardous Waste Manifest for all Hazardous Waste removed, to include any and all associated weight tickets that clearly identify the quantity of material disposed. These documents shall be signed or stamped by the receiving facility as applicable. ii. Bill or Lading for Universal Waste or Miscellaneous Hazardous Materials removed, to include any and all associated weight tickets that clearly identify the quantity of material disposed. These documents must be signed or stamped by the receiving facility as applicable.
END OF SECTION 02 08 30
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SECTION 02 33 13 - UNDERGROUND UTILITY LOCATOR SERVICE
PART 1 GENERAL
1.01 DESCRIPTION
A. Retain an independent utility locator service company with a minimum of five (5) years experience to field locate, mark, and stakeout existing underground utilities and service connections. 1. Include 30 hours of “locator service” to locate underground utilities. 2. If required determine the exact location of utilities by hand excavated test pits or through vacuum methods. Support and protect all utilities to remain in place. 3. Contractor shall field locate, mark, and stakeout underground utilities prior to excavation. 4. Contractor will be responsible for the location of all utilities within areas of excavation, and all costs associated with the repair of utilities hit/damaged during construction. 5. Call before you dig. 6. If no utilities are present, verified by the Facility, this locator service is not required.
1.02 SUBMITTALS
A. Submit detailed experience and qualifications description of underground utility locator service. Experience and qualifications package should include a description of the types of utility locator equipment and experience that can be provided.
1.03 DELIVERABLES
A. At the conclusion of this project, provide three (3) sets of paper and one (1) copy of electronic plans documenting all utilities located and identified. All documentation shall be referenced to the existing datum (horizontal and vertical) established by the survey of Lovell & Belcher.
1.04 COORDINATION AND SCHEDULING
A. General Location 1. Within areas of excavations all utilities shall be field located and their locations marked at least one (1) day prior to the performance of the required excavation.
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B. Exact Location 1. The performance of hand excavated test pits or vacuum excavations to determine the utilities exact location shall be performed just prior to performing the work to minimize the time that excavated areas will be exposed to erosive conditions.
C. Coordinate all work with the Facilities Department to minimize utility disruptions and facility operations. The Facility Director’s Representative shall be notified at least three (3) working days prior to performing the work, and should be provided a schedule for the works progression.
PART 2 (Not Used)
PART 3 EXECUTION
3.01 WORK AREAS AND PERFORMANCE
A. The Facility Director’s Representative may limit or restrict scheduling of the utility locator service based upon project progress.
END OF SECTION 02 33 13
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SECTION 02 41 13 - SELECTIVE REMOVALS AND DEMOLITION
PART 1 - GENERAL
1.1 RELATED WORK SPECIFIED ELSEWHERE
A. Cutting and Patching - Section 01 73 29 B. Construction Waste Management - Section 01 74 19 C. Removal of Universal Waste and Miscellaneous Hazardous Materials – Section 02 08 30
1.2 SUMMARY
A. Perform all demolition in accordance with the Contract Documents. The Work of this Section shall include but not be limited to the following: 1. Removal of selected items to accommodate new construction 2. Removal of exterior finishes and other items, to accommodate new construction. 3. Protect existing items to remain. 4. The maintenance of the College’s operations during selective demolition operations. 5. Protection of the cables and utilities serving other buildings and other areas at the College Campus during the demolition and construction activities. The above services shall be maintained in operation without any interruption at all times unless otherwise scheduled and authorized by the Campus.
1.3 DEFINITIONS
A. Remove: Remove and legally dispose of items except those indicated to be reinstalled, salvaged, or to remain the College's property. B. Remove and Salvage: Items indicated to be removed and salvaged remain the College's property. Remove, clean, and pack or crate items to protect against damage. Identify contents of containers and deliver to the College’s designated storage area. C. Remove and Reinstall: Remove items indicated; clean, service, and otherwise prepare them for reuse; store and protect against damage. Reinstall items in the same locations or in locations indicated. D. Existing to Remain: Protect construction indicated to remain against damage and soiling during selective demolition. When permitted by the Architect, items may be removed to a suitable, protected storage location during selective demolition and then cleaned and reinstalled in their original locations.
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1.4 SUBMITTALS
A. Proposed schedule of operations including coordination for shutoff, capping, and continuation of utility services as required. 1. Provide a detailed sequence of selective demolition and removal work to ensure uninterrupted progress of the College’s on-site operations and pedestrian movement out of building onto grade. 2. Coordinate with the College’s continuing occupation of certain portions of the existing building. 3. Include proposed methods for dust and noise control measures. 4. Contractor to submit intermediate life safety plan demonstrating how required government regulations will be maintained for occupied portions of the building. 5. Provide a sequence of moving people from the door (occupied building above) to safe, approved exiting without going through the construction site. 6. Two points of unobstructed egress must be available to building occupants throughout the duration of the contract.
1.5 QUALITY ASSURANCE
A. Demolition Firm Qualifications: Engage an experienced firm that has successfully completed selective demolition Work similar to that indicated for this Project. B. Regulatory Requirements: Comply with governing EPA notification regulations before starting selective demolition. Comply with hauling and disposal regulations of authorities having jurisdiction. 1. All demolition work shall comply with requirements of the College’s operational requirements and authorities having jurisdiction. a. Coordinate with the College’s Engineering Department. C. Contractor shall verify all conditions at site prior to the start of Work. D. Notify appropriate agencies of any hazardous materials unearthed at the site. Do not proceed with removal of said substances until so instructed.
1.6 JOB CONDITIONS
A. Condition of Structures: The College assumes no responsibility for actual condition of structures to be demolished. 1. Conditions existing at time of inspection for bidding purpose will be maintained by the College insofar as practicable. B. Explosives: Use of explosives will not be permitted. Explosives will not be permitted for any Work of the project.
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C. Traffic: Conduct selective demolition operations and removal of debris to ensure minimum interference with roads, streets, walks, and other adjacent occupied and used facilities. 1. Do not close or obstruct exiting pathways, streets, walks, or other occupied or used facilities without permission from the College and authorities having jurisdiction. Provide alternate routes around closed or obstructed pedestrian and vehicular traffic ways as required by governing authorities or regulations. D. Protections: Ensure safe passage of persons around area of demolition. Conduct operations to prevent damage to adjacent buildings, structures, and other facilities and injury to persons. 1. Provide exterior shoring, bracing, or support to prevent movement, settlement, or collapse of structures to be demolished and adjacent facilities to remain. E. Damages: Promptly repair damages caused to adjacent areas and facilities by demolition operations. F. Flame Cutting: Do not use cutting torches for removal of material to be salvaged. Do not use cutting torches for demolition or removal until work area is cleared of flammable materials. Maintain portable fire suppression devices during flame- cutting operations. G. Utility Services: Maintain existing utilities indicated to stay in service and protect against damage during demolition operations. 1. Do not interrupt existing utilities serving occupied or used facilities, except when authorized in writing by authorities having jurisdiction. Provide temporary services during interruptions to existing utilities, as acceptable to governing authorities and/or the College. H. Utility Services: Do not start demolition work until utility disconnections have been completed and verified in writing. I. Environmental Controls: Use temporary enclosures, and other methods to limit dust and dirt migration. Comply with governing regulations pertaining to environmental protection. 1. Do not use water when it may create hazardous or objectionable conditions such as damage to finishes, flooding, slippery walkways, and pollution.
1.7 SCHEDULING
A. Arrange selective demolition schedule so as not to interfere with the College’s on- site operations.
PART 2 - PRODUCTS
2.1 REPAIR MATERIALS
A. Use repair materials identical to existing materials.
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1. Where identical materials are unavailable or cannot be used for exposed surfaces, use materials that visually match existing adjacent surfaces to the fullest extent possible, and as approved by Architect. 2. Use materials whose installed performance equals or surpasses that of existing materials.
PART 3 – EXECUTION
3.1 EXAMINATION
A. General: Prior to commencement of selective demolition operations, verify that existing utilities have been located, identified, disconnected and capped. B. Survey existing conditions and correlate with requirements indicated to determine extent of selective demolition required. C. Inventory and record the condition of items to be removed and reinstalled and items to be removed and salvaged. D. When unanticipated mechanical, electrical, or structural elements that conflict with the intended function or design are encountered, investigate and measure the nature and extent of the conflict. Promptly submit a written report to the Architect. E. Survey the condition of the building to determine whether removing any element might result in structural deficiency or unplanned collapse of any portion of the structure or adjacent structures during selective demolition. Design for shoring and bracing shall be prepared by an engineer licensed in the State of New York. F. Perform surveys as the Work progresses to detect hazards resulting from selective demolition activities.
3.2 UTILITY SERVICES
A. Maintain existing utilities indicated to remain in service and protect them against damage during selective demolition operations. 1. Do not interrupt existing utilities serving occupied or operating facilities, except when authorized in writing by the Architect and authorities having jurisdiction. Provide temporary services during interruptions to existing utilities, as acceptable to the Architect and to governing authorities. a. Provide not less than 72 hours notice to the College if shutdown of service is required during changeover. B. Utility Requirements: Do not start selective demolition work until utility disconnecting and sealing have been completed and verified in writing.
3.3 PREPARATION
A. General: Provide shoring, bracing, or support to prevent movement, settlement, or collapse of areas to be demolished and adjacent facilities to remain.
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1. Cease operations and notify College Safety Officer immediately if safety of structure appears to be endangered. Take precautions to support structure until determination is made for continuing operations. Maintain exterior shoring and bracing throughout the term of this Contract. 2. Cover and protect equipment and fixtures from soilage or damage when selective demolition work is performed in areas where such items have not been removed. 3. Locate, identify, stub off, and disconnect utility services that are not indicated to remain. a. Provide bypass connections as necessary to maintain continuity of service to designated areas of building. Provide minimum of 72 hours advance notice to the College if shutdown of service is necessary during changeover. B. Pollution Controls: Use water sprinkling, temporary enclosures, and other suitable methods to limit dust and dirt rising and scattering in air. Comply with governing regulations pertaining to environmental protection. 1. Do not use water when it may create hazardous or objectionable conditions such as ice, flooding, and pollution. C. Clean adjacent structures and improvements of dust, dirt, and debris caused by demolition operations. Return adjacent areas to condition existing prior to start of work. D. Demolition, General: Demolish and remove existing construction only to the extent required by new construction and as indicated. Use methods required to complete Work within limitations of governing regulations and as follows: 1. Proceed with selective demolition systematically, from higher to lower level. Complete selective demolition work above each tier before disturbing supporting members on lower levels. 2. Neatly cut openings and holes plumb, square, and true to dimensions required. Use cutting methods least likely to damage construction to remain or adjoining construction. To minimize disturbance of adjacent surfaces, use hand or small power tools designed for sawing or grinding, not hammering and chopping. Temporarily cover openings to remain. 3. Cut or drill from the exposed or finished side into concealed surfaces to avoid marring existing finished surfaces. 4. Do not use cutting torches until work area is cleared of flammable materials. At concealed spaces, such as duct and pipe interiors, verify condition and contents of hidden space before starting flame-cutting operations. Maintain portable fire-suppression devices during flame-cutting operations. 5. Maintain adequate ventilation when using cutting torches. 6. Remove decayed, vermin-infested, or otherwise dangerous or unsuitable materials and promptly dispose of off-site. 7. Locate selective demolition equipment throughout the structure and remove debris and materials so as not to impose excessive loads on supporting walls, floors, or framing.
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8. Dispose of demolished items and materials promptly. On-site storage or sale of removed items is prohibited. 9. Return elements of construction and surfaces to remain to condition existing before start of selective demolition operations. E. If unanticipated mechanical, electrical, or structural elements that conflict with intended function or design are encountered, investigate and measure both nature and extent of the conflict. Submit report to the Architect in written, accurate detail. Pending receipt of directive from the Architect, rearrange selective demolition schedule as necessary to continue overall job progress without undue delay.
3.4 DISPOSAL OF DEMOLISHED MATERIALS
A. General: As a minimum, remove weekly from site accumulated debris, rubbish, and other materials resulting from demolition operations. However, more frequent off site removal of accumulated debris is required as soon as the dumpster is full. 1. If hazardous materials are encountered during demolition operations, comply with applicable regulations, laws, and ordinances concerning removal, handling, and protection against exposure or environmental pollution. 2. Burning of demolished materials will not be permitted on site. B. Removal: Transport materials removed from demolished structures and legally dispose off site.
3.5 CLEAN-UP AND REPAIR
A. General: Upon completion of demolition work, remove tools, equipment, and demolished materials from site. 1. Repair demolition performed in excess of that required. Return elements of construction and surfaces to remain to condition existing prior to start operations. Repair adjacent construction or surfaces soiled or damaged by demolition work. 2. Clean adjacent areas, of all dust, dirt, and debris caused by selective demolition, cutting, and patching operations. Daily and final clean up shall be satisfactory to the Architect.
END OF SECTION 02 41 13
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SECTION 03 11 00 – CONCRETE FORMWORK
PART 1 GENERAL
1.01 RELATED WORK SPECIFIED ELSEWHERE
A. Cast-In-Place Concrete: Section 03 30 00. B. Concrete Reinforcement: Section 03 20 00.
1.02 DESIGN REQUIREMENTS
A. ACI 301, Section 2.1 – Formwork and formwork accessories, General: 1. Add the following to 2.1.1 Description:
The formwork shall be designed for loads, lateral pressure, and allowable stresses outlined in Chapter 2 - Design of “Guide to Formwork for Concrete” (ACI 347-01).
1.03 SUBMITTALS
A. Shop Drawings:
B. Product Data: Manufacturer’s catalog sheets, specifications, and installation/application instructions for the following: 1. Form systems and ties.
PART 2 PRODUCTS
2.01 MATERIALS
A. Chamfer Strips: Wood, metal, PVC or rubber; 1 inch chamfer, unless otherwise indicated on the Drawings.
B. Rustication Strips: As required to provide rustication, patterns and profiles indicated on the Drawings.
C. ACI 301, Section 2.1.2 - Submittals: 1. Add the following to 2.3.2 Removal of formwork:
2.3.2.7 After the ends or end fasteners of form ties have been removed, the embedded portion of the ties shall terminate not less than 3/4 inch from the formed surfaces of concrete.
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PART 3 EXECUTION
3.01 PREPARATION OF FORM SURFACES
A. Apply form-coating material in accordance with manufacturer’s instructions.
3.02 INSTALLATION
A. Provide chamfer on all exposed external corners of concrete.
B. Provisions for Work of Related Contracts: Provide openings in concrete formwork to accommodate Work of related contracts. Obtain information for size and location of openings, recesses and chases from contractor requiring such items.
C. All formwork to be straight and true.
D. All formwork to be inspected by an independent inspector, at the cost to the College, prior to any pours.
3.03 REMOVAL OF FORMS
A. ACI 301, Section 2.3.2 - Removal of Forms: 1. 2.3.2.5 Forms of concrete slabs and other structural members shall be removed in accordance with recommendations in paragraph 3.7.2.1 of Article 3.7 - Removal of Forms and Supports of “Recommended Practice for Concrete Formwork” (ACI 347-01).
2. 2.3.2.7 All formwork shall be removed after the concrete has sufficiently hardened, except in inaccessible spaces where approved.
3.04 RE-USE OF FORMS
A. Split, frayed, delaminated or otherwise damaged form facing material shall not be used.
END OF SECTION
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SECTION 03 20 00 – CONCRETE REINFORCEMENT
PART 1 - GENERAL
1.01 DESCRIPTION OF WORK
A. Provide and install all reinforcement and associated items required for cast-in-place concrete.
B. All reinforcement (rebar or WWM) is to be epoxy-coated on the particular project. Provide epoxy-coated reinforcement for all exterior work exposed to the elements, which includes parapets, exterior framed slabs, exposed faces of site-retaining walls/curbs, steps, ramps and coping.
1.02 RELATED SECTIONS
A. Concrete Formwork: Section 03 11 00
B. Cast-in-Place Concrete: Section 03 30 00
1.03 SUSTAINABILITY REQUIREMENTS
A. The Contractor shall implement practices and procedures to meet the Project’s sustainable requirements. The Contractor shall ensure that the requirements related to these goals, as defined in Specification Section 02 08 30, Removal of Universal Waste and Miscellaneous Hazardous Materials, and as specified in this Section, are implemented to the fullest extent. Substitutions or other changes to the work shall not be proposed by the Contractor or their sub-contractors if such changes compromise the stated Waste Removal Performance Criteria.
1.04 REFERENCES
References and industry standards listed in this Section are applicable to the Work. Unless more restrictive criteria or differing requirements are explicitly stated in the Specifications, or mandated by governing codes or regulations, the recommendations, suggestions, and requirements described in the referenced standards shall be deemed mandatory and applicable to the Work.
A. American Society of Testing and Materials (ASTM) standards, latest editions.
A82 Standard Specification for Steel Wire, Plain, for Concrete Reinforcement.
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A184 Standard Specification for Fabricated Deformed Steel Bar Mats for Concrete Reinforcement.
A185 Standard Specification for Steel Welded Wire Reinforcement, Plain, for Concrete Reinforcement.
A496 Standard Specification for Steel Wire, Deformed, for Concrete Reinforcement.
A497 Standard Specification for Steel Welded Wire Reinforcement, Deformed for Concrete Reinforcement.
A615 Standard Specifications for Deformed and Plain Billet-Steel Bars for Concrete Reinforcement.
A706 Standard Specifications for Low-Alloy Steel Deformed and Plain Bars for Concrete reinforcement
B. American Concrete Institute (ACI) standards, latest editions.
ACI 301 Specification for Structural Concrete for Buildings.
ACI 315 Details and Detailing of Concrete Reinforce-ment.
ACI 318-11 Building Code Requirements for Reinforced Concrete (With modifications per Section BC 1908 of the 2014 NYC Building Code).
C. Placing Reinforcing Bars - CRSI-WCRSI Recommended Practices, latest edition. Concrete Reinforcing Steel Institute.
D. Structural Welding Code - Reinforcing Steel D1.4 - American Welding Society (AWS).
1.05 DESIGN REQUIREMENTS
A. Detailing requirements for reinforced concrete structures shall meet the structural integrity requirements as set in Section BC 1916 of the 2014 NYC Building Code.
1.06 SUBMITTALS
A. Product Data
Submit manufacturers' information for the following:
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1. Steel welded wire fabric
2. Steel welded wire mesh.
3. Supports
4. Mechanical connectors
B. Shop Drawings
1. Immediately after award of Contract, prepare shop drawings showing all fabrication dimensions and locations for placing of the reinforcing steel and accessories. Shop Drawings are to be prepared by a rebar detailer.
2. Follow detailing recommendations of ACI 315.
3. Submit drawings gradually and not all at the same time so that sufficient time is allowed for checking and approval. Improperly prepared and incomplete shop drawings will be disapproved without review.
4. Shop drawings will be checked for size of material and spacing by the Engineer of Record, which shall not render the Engineer responsible for any errors in construction dimensions, quantities, bends, etc. that have been made in preparation of the shop drawings. The Contractor shall assume full responsibility for the correctness of quantities, dimensions and fit.
5. Do not order or deliver reinforcement to job site prior to approval of drawings.
C. Quality Control Submittals
1. Certificates
a. Submit certificate stating that reinforcement meets or exceeds the specified requirements.
b. If WWM is used, provide certificate from the manufacturer that WWM meets or exceeds the requirements specified in ACI 318 and provide calculations that it is of equivalent strength to the reinforcing bars that are being substituted.
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2. Contractor Qualifications
Provide proof of Installer and Detailer qualifications specified under “Quality Assurance”.
1.07 QUALITY ASSURANCE
A. Qualifications
1. Rebar Installer: Company specializing in performing the Work of this Section shall have five years minimum experience on successful projects of similar size.
2. Rebar Detailer: Company shall be specialized in the detailing of reinforcing bar shop drawings with a minimum of five years experience.
B. Regulatory Requirements
1. Building Code
Work of this section shall conform to all requirements of the NYC Building Code. Deliveries will be rejected unless:
a. All reinforcing bars are identifiable as to point of origin, grade of steel, and size. b. All bundles or rolls of cold drawn steel wire reinforcement are securely tagged to identify the manufacturer, the grade of steel, and the size
Where more severe requirements than those contained in the Building Code are given in this Section and ACI 318, the requirements of this Section and ACI 318 shall govern.
2. Industry Standards
Details of Concrete reinforcement not covered herein shall be in accordance with "Building Code Requirements for Reinforced Concrete" (ACI 318) and "Details and Detailing of Concrete Reinforcement" (ACI 315), latest editions and the Concrete Reinforcing Steel Institute Manual on "Placing Reinforcing Bars" (CRSI).
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1.08 DELIVERY, STORAGE, AND HANDLING
A. Store in location to prevent rusting, etc.
B. Protect reinforcement before, during, and after installation.
C. Insure proper identification after bundles are broken.
D. WWM is shipped in two forms; rolls or sheets. If the rolls or sheets must be lifted by crane at the job site, the contractor may request the manufacturer to install lifting eyes. At all times during off loading of materials, caution must be exercised and all safety regulations and practices must be observed.
PART 2 - PRODUCTS
2.01 MATERIALS
A. Reinforcing Bars
1. All reinforcing bars, except those to be welded, shall be of deformed type of new billet steel conforming to current requirements of ASTM A615. No rail or re-rolled steel will be permitted. Reinforcement to be welded shall conform to the requirements of ASTM A706.
2. Grade or yield strength of reinforcing bars is indicated on Drawings. Verify grade of reinforcing bars is shown on Drawings.
3. If reinforcing bars are cut in the field, exposed end must be painted fully with epoxy so that rusting does not bleed through or impair the concrete in any way.
B. Welded Steel Wire Fabric
1. Wire Fabric shall conform to the requirements of ASTM A185.
2. Required net area, placement details, and other requirements are indicated on Drawings.
C. Welded Wire Mesh (WWM)
1. Welded Wire Mesh shall conform to ASTM A497 and shall be made of wire conforming to ASTM A496.
D. Supports for Reinforcement
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1. Supports for reinforcement supported by formwork shall consist of metal epoxied bolsters and chairs of adequate strength, size, and number. Provide CRSI Class 1 supports (plastic tipped) for formed concrete surfaces.
2. Supports for reinforcement of slabs supported by ground shall consist of above supports with sand plates or horizontal runners. Support for reinforcement of footings/pile-caps shall consist of the above supports or precast concrete block, 4" square, having a compressive strength equal to that of the concrete being placed.
2.02 FABRICATION
A. Fabricate reinforcing bars in accordance with fabricating allowances given in ACI 315.
PART 3 - EXECUTION
3.01 PLACEMENT
A. General
1. Place reinforcement in accordance with CRSI "Placing Reinforcement Bars" and Section BC 1907.5.
2. Welding of crossing bars (tack welding) for assembly of reinforcement is prohibited.
3. Avoid cutting or puncturing vapor barrier during placement.
B. Supports
1. Support and fasten together all reinforcement to prevent displacement by construction loads or placing of concrete.
2. Provide supports specified in Article 2.01.
3. Provide Continuous High Chair Upper (CHCU) or Continuous Support (CS) for welded wire fabric in the metal deck and place every four feet (4') parallel to the supporting beams. CHCU and CS must be epoxied.
4. Lifting of bars, welded wire fabric, and welded wire reinforcement into position during placement of concrete is not permitted.
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5. Where the concrete surface will be exposed to the weather in the finished structure, the portions of all accessories within 1/2" of the concrete surface shall be non-corrosive or protected against corrosion.
6. The following guidelines for WWR support spacing can be used for supported concrete slabs whether formed or placed on composite metal decks.
Wire Size Wire Spacing Support Spacing W or D9 and larger 12” and greater 4-6 ft. W or D5 to W or D8 12” and greater 3-4 ft. W or D9 and larger Less than 12” 3-4 ft.
W or D4 to W or D8 Less than 12” 2-3 ft. Less than W or D4 Less than 12” 2-3 ft. or less.
C. Cover
Provide minimum protective cover given in Section BC 1907.7.1 if not indicated on Drawings.
D. Splices
1. All splices not shown on the Project Drawings shall be shown on the shop drawings and approved by the Engineer of Record.
2. Provide welded splices where indicated on Drawings. All welding shall conform to AWS D1.4. At these locations, only reinforcement conforming to ASTM A706 shall be used.
3. Provide mechanical connectors where indicated on Drawings. Install in accordance with splice device manufacturer's recommendations.
E. Embedment Lengths
All embedment lengths not shown on the Project Drawings shall be shown on the shop drawings and approved by the Engineer of Record.
3.02 TOLERANCES
A. Place reinforcing bars in accordance with the tolerances given in Section BC 1907.5.2 .
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B. Move bars as necessary to avoid interference with other reinforcement, conduits, or imbedded items. If bars are moved more than one bar diameter, or enough to exceed the above tolerances, the resulting arrangements are subject to approval by the Architect of Record.
3.03 FIELD QUALITY CONTROL
A. The College will assign a Special Inspector to inspect the size and placement of reinforcement. A record will be made of all inspection of reinforcement at the bending bench and in place.
B. Do not proceed with the completion of wall forms until all reinforcement has been approved and recorded by the Special Inspector.
C. Do not proceed with concreting until all reinforcing in place has been approved and recorded.
D. Promptly correct all reinforcement displaced during pouring of concrete.
E. Damaged reinforcement shall not be used.
3.04 CLEANING
A. Steel reinforcement shall be free of all rust, scale, oil, paint, grease, loose mill scale, and all other foreign matter that will prevent bonding of concrete and steel just prior to pouring of concrete.
END OF SECTION 03 20 00
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SECTION 03 30 00 - CAST-IN-PLACE CONCRETE
PART 1 GENERAL
1.01 RELATED WORK SPECIFIED ELSEWHERE
A. Concrete Formwork: Section 03 11 00.
1.02 REFERENCES
A. Except as shown or specified otherwise, the Work of this Section shall conform to the requirements of American Concrete Institute (ACI) and American Society for Testing and Materials (ASTM) documents. 1. ACI 302.1R-96: Guide for Concrete Floor and Slab Construction. 2. ACI 304.2R-96: Placing Concrete by Pumping Methods. 3. ACI 305R-99: Hot Weather Concreting. 4. ACI 308.1-98: Standard Specification for Curing Concrete. 5. ACI 318 Building Code Requirements for Reinforced Concrete. 6. ASTM C 94/C 94M - 04: Standard Specification for Ready- Mixed Concrete. 7. ASTM C 494/C 494M - 04: Standard Specification for Chemical Admixtures for Concrete.
1.03 DEFINITIONS
A. Definitions: 1. Cementitious Material: Cementitious materials include cement, ground blast furnace slag and fly ash. 2. Corrosion Inhibitor Admixture: A liquid admixture, calcium nitrite that inhibits corrosion of concrete-embedded steel in the presence of chloride ions. 3. Pumped Concrete: Concrete that is conveyed by pumping pressure through rigid pipe or flexible hose. 4. Water-to-Cementitious Ratio (w/c): An equational value representing quantity in pounds of free moisture available for cement hydration divided by quantity of cementitious materials in pounds per cubic yard concrete. 5. Product Data: Submit manufacturer’s complete technical data sheets for the following a. Colored Admixture b. Curing Compound
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1.04 SUBMITTALS
A. Submittals Package: Submit product data for design mix(es) and materials for concrete specified below at the same time as a package. B. Product Data: 1. Mix Design: Submit proposed concrete design mix(es) together with name and location of batching plant at least 28 days prior to the start of concrete work. a. Include test results of proposed concrete proportions based on previous field experience or laboratory trial batches in accordance with ACI 301, Section 4. b. Pumped Concrete: Include test results of proposed design mix(es) tested under actual field conditions with the maximum horizontal run and vertical lift required for this project. 2. Portland Cement: Brand and manufacturer’s name. 3. Fly Ash: Name and location of source, and DOT test numbers. 4. Air-entraining Admixture: Brand and manufacturer’s name. 5. Water-reducing Admixture: Brand and manufacturer’s name. 6. Corrosion Inhibitor Admixture: Brand and manufacturer’s name. 7. Aggregates: Name and location of source, and DOT test numbers. 8. Lightweight Coarse Aggregates: Brand and manufacturer’s name. 9. Chemical Hardener (Dustproofing): Brand and manufacturer’s name, and application instructions. 10. Chemical Curing and Anti-Spalling Compound: Brand and manufacturer’s name, and application instructions. 11. Bonding Agent (Adhesive): Brand and manufacturer’s name, and preparation and application instructions. 12. Expansion Joint Fillers: Brand and manufacturer’s name. 13. Integrally colored concrete.
C. Quality Control Submittals: 1. Batching Plant Records: At the end of each day of placing concrete, furnish the Director’s Representative with a legible copy of all batch records for the concrete placed. 2. Concrete Pumping Equipment Data: Include manufacturer’s name and model of principal components, type of pump, and type and diameter of pipe/hose.
D. Integrally Colored Concrete [Mockups] 1. Provide under provisions of Division 1 Section “Quality Control” [Landscape Architect] [Engineer] [4 by 4 feet (1.2 by 1.2m)] 2. Construct sample panel using processes and techniques intended for use on permanent work, including curing procedures. Include samples of control, construction, and expansion joints in sample panels. Mockup shall
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be produced by the individual workers who will perform the work for the Project. 3. Retain samples of cements, sands, aggregates and color additives used in mockup for comparison with materials used in remaining work. 4. Accepted mockup provides visual standard for work of Section. 5. Mockup shall remain through completion of work for use as a quality standard for finished work.
1.05 QUALITY ASSURANCE
A. Qualifications of Crew Pumping Concrete: Workers pumping concrete shall have had at least one year of experience pumping concrete.
B. Concrete batching plants shall be currently approved as concrete suppliers by the New York State Department of Transportation.
C. Truck mixers for concrete shall be currently approved by the New York State Department of Transportation.
D. Pumping equipment for pumped concrete shall be subject to the approval of the Architect.
E. Fly ash supplier shall be on the New York State Department of Transportation’s current “Approved List of Suppliers of Fly Ash”.
F. Source Quality Control: The Architect reserves the right to inspect and approve the following items, at his own discretion, either with his own forces or with a designated inspection agency: 1. Batching and mixing facilities and equipment. 2. Sources of materials.
G. Reference standards and cited publications: 1. Add the following to the list of ASTM Standards: a. Standard Methods of Sampling and Testing Fly Ash or Natural Pozzolans For Use As A Mineral Admixture in Portland Cement Concrete.
H. Colored admixture: Comply with manufacturer’s instructions. Deliver colored admixtures in original unopened packaging. Store in dry conditions.
1.06 DELIVERY
A. ASTM C 94/C 94M - 04, Article 13.1 - Batch Ticket Information: In addition to the information required by Paragraph 16.1, also include the following:
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1. Type and brand, and amount of cement. 2. Weights of fine and coarse aggregates. 3. Class and brand, and amount of fly ash (if any).
B. Integrally Colored Concrete Environmental Requirements: 1. Schedule placement to minimize exposure to wind and hot sun before curing materials are applied. 2. Avoid placing concrete if rain, snow, or frost is forecast within 24-hours. Protect fresh concrete from moisture and freezing. 3. Comply with professional practices described in ACI 305R and ACI 306R.
C. Schedule delivery of concrete to provide consistent mix times from batching until discharge. Mix times shall meet manufacturer’s written recommendations.
PART 2 PRODUCTS
2.01 MATERIALS
A. Cement: ASTM C 150, Type I or II Portland cement.
B. Water: Potable
C. Air-entraining Admixture: ASTM C 260, and on the New York State Department of Transportation’s current “Approved List”.
D. Water-reducing Admixture: ASTM C 494/C 494M - 04, Type A, and on the New York State Department of Transportation’s current “Approved List”.
E. Corrosion-Inhibiting Admixture: ASTM C 494/C 494M - 04, for use in resisting corrosion of steel reinforcement. 1. DCI Corrosion Inhibitor by W. R. Grace & Co., - Conn., 62 Whittemore Ave., Cambridge, MA 02140, (617) 876-1400 and Rheocrete CNI by Master Builders/ BASF Building Systems, 23700 Chagrin Blvd., Cleveland, OH 44122, (800) 628-9990. 2. DCI - S Corrosion Inhibitor by W. R. Grace & Co., - Conn., 62 Whittemore Ave., Cambridge, MA 02140, (617) 876-1400.
F. Retarding Admixture: ASTM C 494, Type D, Water-reducing and retarding, for use in hot weather concreting, and on the New York State Department of Transportation’s current “Approved List”.
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G. Fly Ash: ASTM C 618, including Table 1 (except for footnote A), Class F except that loss on ignition shall not exceed 4.0 percent.
H. Aggregates: 1. Fine aggregate for pumped concrete shall meet the requirements of ASTM C 33, except 15 to 30 percent shall pass the No. 50 sieve and 5 to 10 percent shall pass the No. 100 sieve. The fineness modulus of the fine aggregate for pumped concrete shall not vary more than 0.20 from the average value used in proportioning. 2. Aggregates for lightweight concrete shall meet the requirements of ASTM C 330, except that fine aggregate for lightweight concrete shall meet the requirements of ASTM C 33. 3. Aggregates shall be taken from storage silos or other approved locations that have been tested and approved by the New York State Department of Transportation, unless otherwise approved in writing by the Director.
I. Moisture-Retaining Cover: Waterproof paper, polyethylene film, or polyethylene-coated burlap complying with ASTM C 171.
J. Chemical Curing and Anti-Spalling Compound: ASTM C-309, Type 1D, Class B, with a minimum 18 percent total solids content. No thinning of material allowed. 1. SureCure Emulsion, Kaufman Products, Inc. 3811 Curtis Avenue, Baltimore, MD 21226, (800) 637-6372. 2. Cure & Seal by Symons Corp., 200 East Touhy Ave., PO Box 5018, Des Plaines, IL 60017-5018, (847) 298-3200. 3. Kure-N-Seal by Sonneborn/ BASF Building Systems, 889 Valley Park Dr., Shakopee, MN 55379, (800) 433-9517. 4. Day-Chem Cure & Seal UV 26 percent (J-22 UV) by Dayton Superior Corp., 721 Richard St., Miamisburg, OH 45342, (800) 745-3700. 5. Acrylseal HS by Master Builders/ BASF Building Systems, 23700 Chagrin Blvd., Cleveland, OH 44122, (800) 628-9990.
K. Chemical Hardener (Dustproofing): Colorless aqueous solution of magnesium- zinc fluosilicate. 1. Lapidolith by Sonneborn/ BASF Building Systems, 889 Valley Park Dr., Shakopee, MN 55379, (800) 433-9517. 2. Surfhard by The Euclid Chemical Co., 19218 Redwood Rd., Cleveland, OH 44110, (216) 531-9222. 3. Pena-Lith by W.R. Meadows, Inc., PO Box 543, Elgin, IL 60121, (847) 683-4500. 4. FluoHard by L & M Construction Chemicals, Inc., 14851 Calhoun Rd., Omaha, NE 68152, (402) 453-6600.
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5. Armortop by Anti Hydro International, Inc., 265 Badger Ave., Newark, NJ 07108, (800) 777-1773. 6. Diamond by Kaufman Products , Inc., 3811 Curtis Avenue, Baltimore, MD 21226, (800) 637-6372.
L. Type 2 Expansion Joint Filler: Preformed, resilient, nonextruding, self-expanding cork units complying with ASTM D 1752, Type III.
M. Epoxy Bonding Agent (Adhesive): 100 percent solids epoxy-resin-base bonding compound, complying with ASTM C 881, Types I, II, IV and V, Grade 2 (horizontal areas) or Grade 3 (overhead/vertical areas), and Class B (40-60 degrees Fahrenheit) or Class C (60 degree Fahrenheit and above). 1. SurePoxy HM Series by Kaufman Products, Inc., 3811 Curtis Avenue, Baltimore, MD 21226, (800) 637-6372. 2. Sikadur Hi-Mod 32 by Sika Corporation, 201 Polito Avenue, Lyndhurst, NJ 07071, (800) 933-7452. 3. Epogrip by Sonneborn/-BASF Building Systems, 889 Valley Park Drive, Shakopee, MN 55379, (800) 433-9517.
N. Expansion Joint Dowels: Smooth steel expansion joint dowel with minimum 5 inch long steel dowel cap, unless otherwise indicated.
O. Integral Water-Repellent Admixture: 1. Hydrocide Powder by Sonneborn/ BASF Building Systems, 889 Valley Park Drive, Shakopee, MN 55379, (800) 433-9517. 2. Darapel by W. R. Grace & Co., - Conn., 62 Whittemore Ave., Cambridge, MA 02140, (617) 876-1400.
P. Colored Admixture for Integrally Colored Concrete: CHROMIX P® and CHROMIX ML®; L. M. SCOFIELD COMPANY. 1. Admixture shall be a colored, water-reducing, admixture containing no calcium chloride with coloring agents that are limeproof and ultra-violet resistant. 2. Colored admixture shall conform to the requirements of ACI 303.1, ASTM C979, ASTM C494 and ASSHTO M194.
Q. Curing Compound for Integrally Colored Concrete: Curing compound shall comply with ASTM C309 and be of same manufacturer as colored admixture, for use with integrally colored concrete. 1. Exterior Integrally Colored Concrete: LITHOCHROME® COLORWAX; L. M. SCOFIELD COMPANY. Use to cure exterior flatwork that will be allowed to cure naturally with only occasional maintenance.
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2. Interior Integrally Colored Concrete: COLORCURE® (Pigmented) or CEMENTONE® (Clear); L.M. SCOFIELD COMPANY. Use to cure interior flatwork that will receive regular maintenance.
R. Curing and Sealing Compound: Cureseal-W™ [Semi-Gloss] and Cureseal-S™ [Matte]; L. M. SCOFIELD COMPANY. Curing and sealing compound shall comply with ASTM C309 and be of same manufacturer as colored admixture, for use with integrally colored concrete.
S. SUBSTITUTIONS: The use of products other than those specified will be considered providing that the Contractor request shall be accompanied by the following: 1. A certificate of compliance from material manufacturer stating that proposed products meet or exceed requirements of the Section, including standards ACI 303.1, ASTM C979, ASTM C494 and AASHTO M194. 2. Documented proof that proposed materials have a 10-year proven record of performance, confirmed by at least 5 local projects that [Architect] [Landscape Architect] [Engineer] can examine.
2.02 COLORS
A. Concrete Color[s]: 1. Cement: Color shall be gray. 2. Sand: Color shall be locally available natural sand. 3. Aggregate: Concrete producer’s standard aggregate complying with specifications. 4. Colored Admixture: As selected by Architect from Scofield Color Chart A-312.
2.03 PROPORTIONING OF MIXES
A. Cast-in-place concrete shall be air-entrained normal weight concrete. 1. Normal weight concrete for exterior slabs, ramps and stairs shall have a minimum compressive strength of 4000 psi, with a minimum of 611 pounds of cement per cubic yard. Slump: Maximum 3 inches; minimum 2 inches before the addition of any water-reducing admixtures or high- range water-reducing admixtures (superplasticizers) at the Site. 2. Optional Material: Fly ash may be substituted for (Portland) cement in normal weight and lightweight concrete up to a maximum of 15 percent by weight of the required minimum (Portland) cement. If fly ash is incorporated in a concrete design mix, make necessary adjustments to the design mix to compensate for the use of fly ash as a partial replacement for (Portland) cement.
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a. Adjustments shall include the required increase in air-entraining admixture to provide the specified air content. b. Lower early strength of the concrete shall be considered in deciding when to remove formwork.
B. Lightweight concrete shall be air-entrained concrete having a minimum compressive strength of 4000 psi and an air-dry unit weight between 95 and 115 lb/cu ft, with a minimum of 611 pounds of cement per cu yd. Lightweight concrete shall be made with normal fine aggregate; lightweight fine aggregate shall not be used. Slump: Maximum 4 inches; minimum 1 inch before the addition of any water-reducing admixtures or high-range water-reducing admixtures (superplasticizers) at the Site.
C. Slump for Pumped Concrete: When a water-reducing admixture is not used, maximum slump shall be 4 inches. When a water-reducing admixture is used, maximum slump shall be 6 inches and when a high-range water-reducing admixture (superplasticizers) is used, maximum slump shall be 8 inches.
D. Design Air Content: Design air content for concrete shall be 6 percent by volume, with an allowable tolerance of plus or minus 1.5 percent for total air content, except as otherwise specified. Use air-entraining admixture, not air- entrained cement.
E. Water-Cement Ratio: Cast-in-place concrete shall have a maximum water-cement ratio of 0.40.
F. Size of Coarse Aggregates: 1. Normal Weight Concrete: Coarse aggregates shall conform to graduation requirements for various sizes as tabulated in Table No. 2 of ASTM C 33. The sizes of coarse aggregates for various classes of Work shall be as follows with all percentages being determined by weight. 2. For other concrete Work having a minimum cross-sectional dimension of not more than 6 inches, the coarse aggregate shall be a well graded mixture of No. 67 and No. 57, provided that not more than 50 percent nor less than 30 percent shall be Size No. 67 and not more than 70 percent nor less than 50 percent shall be Size No. 57. 3. For other concrete Work having a minimum cross-sectional dimension greater than 6 inches and not more than 12 inches, the coarse aggregate shall consist of a mixture of No. 67, No. 57 and No. 467, providing that not more than 25 percent nor less than 10 percent shall be Size No. 67 and not more than 40 percent shall be Size No. 467.
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4. Lightweight Concrete: Lightweight aggregates shall be graded from 3/4 inch to No. 4 sieve size in conformance with Table No. 1 of ASTM C 330.
G. Application Rate for Corrosion-Inhibiting Admixture: The application rate for the corrosion-inhibiting admixture shall be in gallons per cubic yard, per the manufacturer’s instructions.
H. Admixtures: Do not use admixtures in concrete unless specified or approved in writing by the Architect.
I. Mixture Proportions: 1. Proposed design mix(es) for pumped concrete and the pumping equipment shall have been tested under actual field conditions with the maximum horizontal run and vertical lift required for this project.
2.04 JOINTS
A. Construction joints and other bonded joints: 1. Use an acceptable adhesive applied in accordance with the manufacturer’s recommendations; 2. Use an acceptable surface retarder in accordance with manufacturer’s recommendations; 3. Roughen the surface in an acceptable manner that exposes the aggregate uniformly and does not leave laitance, loosened particles of aggregate, or damaged concrete at the surface; or 4. Use Portland-cement grout of the same proportions as the mortar in the concrete in an acceptable manner.
B. Isolation-joint filler materials: 1. Except as otherwise shown on the Drawings, expansion joints shall be as follows: 2. In joints required to receive a sealant, the joint filler shall be 1/2 inch thick and recessed as required to form a caulking slot. 3. In joints not required to receive a sealant, the joint filler shall be 1/2 inch thick and extend through the full cross-section of the concrete. 4. Tool edges of concrete with 1/8 inch radius edging tool.
2.05 PRODUCTION OF CONCRETE
A. Provide ready-mixed concrete, either central-mixed or truck-mixed, unless otherwise approved in writing by the Director.
B. Lightweight Concrete:
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1. Lightweight coarse aggregate shall be presoaked with water a minimum of 24 hours prior to use in a concrete mix to be pumped. Presoaking may be accomplished by suitable sprinkling.
C. Weather considerations 1. Provide adequate controls to insure that the temperature of the concrete when placed does not exceed 90 degrees F., and make every effort to place it at a lower temperature. The temperature of the concrete as placed shall not be so high as to cause difficulty from loss of slump, flash set or cold joints. Ingredients may be cooled before mixing by shading the aggregates, fog spraying the coarse aggregate, chilling the mixing water or other approved means. Mixing water may be chilled with flake ice or well-crushed ice of a size that will melt completely during mixing, providing the water equivalent of the ice is calculated into the total amount of mixing water.
D. Protect concrete from physical damage or reduced strength due to weather extremes during mixing, placement and curing. 1. When air temperature is between 85 degrees F (30 degrees C ) and 90 degrees F (32 degrees C), reduce mixing and delivery time from 1 1/2 hours to 75 minutes, and when air temperature is above 90 degrees F (32 degrees C), reduce mixing and delivery time to 60 minutes.
PART 3 EXECUTION
3.01 EXAMINATION AND PREPARATION
A. Do not use items of aluminum for mixing, chuting, conveying, forming or finishing concrete, except magnesium alloy tools may be used for finishing.
B. Check items of aluminum required to be embedded in the concrete and insure that they are coated, painted or otherwise isolated in an approved manner.
C. Install waterstops in accordance with manufacturer’s printed instructions.
D. Hardened concrete, reinforcement, forms, and earth which will be in contact with fresh concrete shall be free from frost at the time of concrete placement.
E. Do not deposit concrete in water. Keep excavations free of water by pumping or by other approved methods.
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F. Prior to placement of concrete, remove all hardened concrete spillage and foreign materials from the space to be occupied by the concrete.
3.02 ADMIXTURE ADDITIONS AT THE SITE
A. Site additions shall be limited to high-range water-reducers, non-chloride accelerators, color additives, and corrosion inhibitors. Comply with manufacturers’ printed instructions for discharge of admixtures shall be furnished.
B. High-Range Water-Reducers: 1. Concrete shall arrive at a slump of 2 to 4 inches (50 to 100 mm). Water additions at the Site shall be limited to comply with water-to-cementitious ratio requirements. 2. Following addition of high-range water-reduced concrete, a minimum of 70 revolutions or 5 minutes of mixing shall be completed to assure a consistent mixture. 3. Do not add water to concrete. Mix with color additive in the field.
C. All concrete with other admixture additions shall mix a minimum of 70 revolutions or 5 minutes to assure a consistent mixture.
3.03 PLACING
A. Conveying equipment: 1. When pumping concrete, the lubricating mortar for the delivery line shall not be discharged into an area of concrete placement. 2. The inside diameter of the delivery lines for pumped concrete shall be the greater of either a minimum of 5 inches or 3 times the maximum size of coarse aggregate.
B. Conveying: 1. Operation of truck mixers and agitators and discharge limitations shall conform to the requirements of ASTM C 94.
C. Depositing: 1. Do not allow concrete to free fall more than 4 feet.
3.04 REPAIRING SURFACE DEFECTS
A. Repair of surface defects: 1. Add the following paragraph: Finish patched areas to match the texture of the surrounding surface.
B. Repair of tie holes:
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1. The patch mixture shall consist of a mixture of dry-pack mortar, consisting of one part Portland cement to 2-1/2 parts fine aggregate passing a No. 16 mesh sieve, using only enough water as required for placing and handling. For surfaces exposed to view, blend white Portland cement and standard Portland cement so that, when dry, patching mortar will match surrounding color. Provide test areas at inconspicuous locations to verify mixture and color match before proceeding with patching. Compact mortar in place and strike-off slightly higher than surrounding surface.
3.05 FINISHING FORMED SURFACES
A. Finish Schedule: Except where indicated otherwise on the Drawings, provide the finishes below: 1. Rough Form Finish for concrete surfaces not exposed to view. 2. Smooth Form Finish for concrete surfaces exposed to view.
3.06 SLABS
A. Finishing unformed surfaces: 1. Provide monolithic finishes on concrete floors and slabs without the addition of mortar or other filler material. Finish surfaces in true planes, true to line, with particular care taken during screeding to maintain an excess of concrete in front of the screed so as to prevent low spots. Screed and darby concrete to true planes while plastic and before free water rises to the surface. Do not perform finishing operations during the time free water (bleeding) is on the surface.
B. Finish Schedule: Except where indicated otherwise on the Drawings, provide the finishes below: 1. Floated Finish for: a. Treads and platforms of exterior steps and stairs. b. Slabs and fill over which waterproofing, roofing, vapor barrier, insulation, terrazzo, or resin bound flooring is required. 2. Broom or Belt Finish for: a. Exterior slabs. Texture as approved by the Architect.
C. Conventional Wet-Cut Saw Cutting 1. Begin saw-cutting as soon as the saw will not dislodge the aggregate or ravel the edge of the saw-cut, but in no case longer than 12 hours after the slab is placed. Saw-cut a minimum of one quarter of the slab depth leaving a clean, sharp edge in the pattern shown on the Contract Documents. Provide sufficient personnel and equipment to complete saw- cutting operations within 18 hours after the slab is placed.
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D. Exposed surfaces with fibrous reinforcement: After curing of the concrete, remove any protruding fibers in a manner which will not harm the parent concrete.
3.07 CURING AND PROTECTION
A. Hot Weather Concreting: Comply with ACI 305R whenever the atmospheric temperature or the form surface temperature is at or above 90 degrees F, or climatic conditions of wind and/or low humidity will cause premature drying of the concrete.
B. Curing Temperature: Maintain the temperature of the concrete at 50 degrees F. or above during the curing period. Keep the concrete temperature as uniform as possible and protect from rapid atmospheric temperature changes. Avoid temperature changes in concrete which exceeds 5 degrees F. in any one hour and 50 degrees F. in any 24-hour period.
C. Integrally Colored Concrete: Apply [curing] [curing and sealing] compound for integrally colored concrete according to manufacturer’s instructions using manufacturer’s recommended application techniques. Apply [curing] [curing and sealing] compound at consistent time for each pour to maintain close color consistency.
D. Curing compound shall be same color as the colored concrete and supplied by same manufacturer of the colored admixture.
E. Precautions shall be taken in hot weather to prevent plastic cracking resulting from excessively rapid drying at surface as described in CIP 5 Plastic Shrinkage Cracking published by the National Ready Mixed Concrete Association.
F. Do not cover concrete with plastic sheeting.
3.08 CHEMICAL HARDENER (DUSTPROOFING)
A. Do not apply chemical hardener until concrete has cured the number of days recommended in manufacturer’s instructions.
B. Prepare surfaces and apply chemical hardener in accordance with manufacturer’s printed instructions and recommendations.
3.09 FIELD QUALITY CONTROL
A. Testing Services:
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1. 1.6.4.2.e Strength Tests for Pumped Concrete: Prepare strength test specimens and make strength tests from concrete samples obtained at the truck discharge chute and at the end of the pump delivery line in accordance with paragraph 16.3.4.4.
B. Tests required of Contractor’s testing agency: 1. 1.6.3.3.c Make available to the Architect whatever test samples are required to make tests.
C. Adjustment to Concrete Mixes: Mix design adjustments may be requested by the Contractor when characteristics of materials, job conditions, weather, test results, or other circumstances warrant, at no additional cost to the State and as accepted by the Director. Laboratory test data for revised mix design and strength results must be submitted to and accepted by the Director’s Representative before using in the work.
D. Test results will be reported in writing to the Architect, Ready-Mix Producer, and Contractor within 24 hours after tests. Reports of compressive strength tests shall contain the project identification name and number, date of concrete placement, name of concrete testing service, concrete type and class, location of concrete batch in structure, design compressive strength at 28 days, concrete mix proportions and materials, compressive breaking strength, and type of break for both 7-day tests and 28-day tests.
E. Nondestructive Testing: Impact hammer, Windsor probe, or other nondestructive device may be permitted but shall not be used as the sole basis for acceptance or rejection.
F. Additional Tests: The Contractor shall make additional tests of in-place concrete when test results indicate specified concrete strengths and other characteristics have not been attained in the structure, as directed by the specifications. The testing service may conduct tests to determine adequacy of concrete by cored cylinders complying with ASTM C 42, or by other methods as directed. Pay for such tests when unacceptable concrete is verified, including all inspection and Engineering fees when non-conforming work is verified will be the responsibility of the Contractor.
END OF SECTION 03 30 00
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SECTION 03 45 00 - ARCHITECTURAL PRECAST CONCRETE TRIM
PART 1 - GENERAL
1.01 REFERENCES: A. Prestressed Concrete Institute MNL 117 "Manual for Quality Control for Plants and Production of Architectural Precast Concrete Products" - 3rd Edition, primarily Appendix J.
B. Prestressed Concrete Institute's "Architectural Precast Concrete Design Manual, 2nd Edition".
C. ASTM standards as stated herein.
1.02 SUMMARY A. This specification covers all labor, materials and services for the furnishing and setting of the integrally colored architectural precast concrete coping as indicated on the drawings and specifications herein.
B. The Fabricator shall have a minimum of 5 years successful experience in fabrication of architectural precast concrete coping, similar to units required for this project. Fabricator must be an APA (Architectural Precast Association) Certified Plant or a PCI (Prestressed/Precast Concrete Institute) certified Plant for category AT or A1 (Architectural Precast). Fabricator must adhere to procedures that are applicable to the manufacturing of Architectural Precast Concrete trim pieces as outlined in Appendix J of PCI MNL-117 (3rd Edition) and the PCI Design Manual (2nd Edition).
1. Qualified Fabricators:
a. Steps Plus, Inc., 6375 Thompson Rd., Syracuse, NY 13206, web: steps-plus.com, ph.: 315-432-0806, fax: 315-432-0612.
b. Or approved equal fabricator that can submit all of the following:
i. Proof of APA Plant Certification or proof of PCI Certification for category AT or A1.
ii. Brochures or photos showing integrally colored precast from at least three previous projects that are of acceptable appearance in the opinion of the Architect. Names and locations of projects must be provided.
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iii. At least three test reports less than 12 months old showing that the 5000 psi compressive cylinder strength and absorption requirements (less than 5%) called for in this specification can be met. Tests must have been performed by a professional testing laboratory.
2. Under no circumstances shall items labeled as precast concrete be cast in the field.
C. The setting contractor shall unload, store, protect, and install as covered by this Specification and shall provide and install all anchors and accessories for same. The setting contractor shall have a minimum of 3 years successful experience in erection of architectural precast concrete similar to units required for this project.
1.03 SUBMITTALS:
Submit the following in accordance with Conditions of Contract and Division 1 Specification Sections.
A. Fabricator information as listed above under section 1.02-B-1-b if the proposed fabricator is not listed as a qualified manufacturer.
B. Shop Drawings:
1. Prepared by an experienced professional detailer showing complete information for fabrication and installation of precast concrete coping.
a. Show layout, dimensions, and identification of each precast unit corresponding to sequence and procedure of installation.
b. Make design modifications only as necessary to meet field conditions and to ensure proper fitting of the work and only as acceptable to the Architect.
2. The Fabricator shall submit the shop drawings to the General Contractor who shall verify all drawing dimensions and coordinate the shop drawings with field conditions and other trades. The General Contractor shall submit the shop drawings to the Architect for approval. The Fabricator shall not start production until the shop drawings are approved by the Architect.
C. Samples
1. Minimum size - 6" x 6" x 2" to illustrate the quality, color, and surface finish texture.
2. Color: Fabricator must develop a custom colored mix to match a colored sample provided by the Architect. The color sample to match would be an
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earthtone color off-white, light gray, or dark gray. Painted, stained, or coated precast is not acceptable. Unless otherwise noted, all the precast coping on the project will be the same color and of the same mix design.
3. Texture: Smooth, dense, fine-grained texture achieved by acid etching to thoroughly remove all surface cement paste.
D. Sealer Product Data
1. The precast coping will come in contact with salt or other deicing compounds, therefore those units must be sealed with a penetrating sealer after they are installed and cleaned. The installer shall submit product data on the proposed penetrating sealer.
1.04 DELIVERY, STORAGE, AND HANDLING A. Deliver precast concrete coping to project site in such quantities and at such times to assure continuity of installation. Store units at project site to prevent cracking, distortion, warping, staining, or other physical damage and so that markings are visible.
PART 2 - PRODUCTS
2.01 FORMWORK A. Provide forms and, where required, form-facing materials of metal, plastic, wood, or other acceptable material that is nonreactive with concrete and will produce required finish surfaces per the approved sample. Maintain form work to provide completed precast concrete trim units within specified fabrication tolerances.
2.02 CONCRETE MATERIALS A. Portland Cement: ASTM C 150, Type I or Type III, Color to be white or gray as required to achieve proper color as determined by the Architect.
B. Coarse Aggregate: ASTM C 33, except for gradation. Color to be white. Darker aggregates may be used as long as the proper color mix is achieved as determined by the Architect.
C. Fine Aggregate: ASTM C 33, except for gradation. Color to be white. Darker aggregates may be used as long as the proper color mix is achieved as determined by the Architect.
D. Pigments: ASTM C 979; Inorganic, nonfading, resistant to lime and other alkalis. Pigments not to exceed 10% of the cement weight.
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E. Water: Drinkable, free from foreign materials in amounts harmful to concrete or cast in steel.
F. Air-Entraining Admixture: ASTM C 260.
G. Water-Reducing, Retarding, or Accelerating Admixtures: ASTM C 494, type as selected by Fabricator and containing not more than 0.1 percent chloride ions.
2.03 CONNECTION MATERIALS A. Anchors: Non-corrosive; epoxied, brass or stainless steel type 304.
B. Finish of Other Steel Units (Plates, braces, etc.): Units exposed to weather to be hot-dip galvanized after fabrication, ASTM A 153; Units not exposed to weather to be painted with one coat of rust-inhibitive primer; threaded inserts cast into precast units, hot-dip galvanized, electrogalvanized, or cadmium plated.
2.04 PROPORTIONING AND DESIGN OF MIXES A. Unless otherwise noted, all the precast units on the project will be the same color and of the same mix design. Design mixes may be prepared by independent testing facility or by qualified precast manufacturing plant personnel, at precast fabricator's option.
B. Mix Properties: Standard-weight concrete consisting of specified portland cement, aggregates, pigments, admixtures, and water to produce the following properties;
1. Compressive Strength: Minimum 2000 psi at 28 days using 6" x 12" cylinders per ASTM C39-86.
2. Total Air Content: Not less than 4% nor more than 8%.
3. Water Absorption: Not to exceed 6% by weight when tested per ASTM C 642.
4. Color: As selected by Architect per the approved precast concrete sample.
2.05 FABRICATION A. Tolerances of Finished Units: In accordance with Appendix J (Architectural Trim Requirements) in PCI MNL - 117 "Manual for Quality Control for Plants and Production of Architectural Precast Concrete Products" (3rd Edition) and PCI's "Architectural Precast Concrete Design Manual, 2nd Edition".
B. Fabricate units straight, smooth, and true to size and shape, with exposed edges and corners formed or honed to a minimum radius unless otherwise indicated.
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C. Testing: Tests to be performed by a certified testing laboratory. Testing to be paid for by the Fabricator. Results to be kept on file for at least two years and submitted to the Architect. No testing is required on projects where the total volume of concrete is under 25 CF.
1. Perform one set of 6" x 12" cylinder tests for every 500 cubic feet of concrete placed.
2. Perform one absorption test for every 500 cubic feet of concrete placed.
D. Curing: Cure units in a warm, moist, totally enclosed curing room for a minimum of 20 hours.
E. Cast-In Items: Fabricator to provide reglets, slots, holes, inserts, and other accessories in units to receive dowels, reglets, waterstops, flashings, anchors and other similar work as indicated.
F. Surface Finish: Remove all surface cement paste by means of acid etching to provide a smooth, dense, fine-grained texture with no streaks or blotches. Texture and quality of finish to be generally equal to the approved sample when viewed in direct daylight at a 10 foot distance.
G. Color: The color shall be generally equal to the approved sample when viewed in direct daylight at a 10 foot distance. Color variation between pieces shall be minimal.
PART 3 - EXECUTION
3.01 INSTALLATION A. Anchorages: The Setting Contractor is to provide loose steel plates, clip angles, seat angles, anchors, dowels, cramps, hangers, and other miscellaneous loose steel shapes not provided by other trades, necessary for securing precast units to supporting and/or adjacent members.
B. Do not install any precast units that have any defects that exceed the acceptable PCI MNL-117 tolerances for dimensions and color if installation would result in unsatisfactory performance or appearance in the opinion of the Architect.
C. Install precast concrete members plumb, level, and in alignment in accordance with PCI MNL-117 erection tolerances and the contract documents. Provide temporary supports and bracing as required to maintain position, stability, and alignment as members are being permanently connected.
D. Protect the precast units from discoloration and staining when washing down the surrounding masonry by covering the precast units with plastic sheeting and/or by
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thoroughly soaking them with clear water to prevent dirty washdown water from being absorbed into them. If dirty washdown water gets on the precast, hose it off immediately with clear water.
E. Cleaning: Before pointing and/or caulking, the face of all precast shall be scrubbed with a fiber brush, using mild detergent and water and shall then be thoroughly rinsed with clean running water. Any mortar on the face of the precast shall be removed. No acids or prepared cleaners shall be used without the approval of the precast Fabricator.
F. Sealing: Exterior coping will come in contact with salt or other deicing compounds, therefore must be sealed with a penetrating sealer approved by the Architect. The sealer is to be applied in accordance with the sealer manufacturer's instructions after the units have been installed, cured, patched, and cleaned. Do not apply sealer before installation since it may prevent mortar, joint sealant and patches from adhering.
3.02 PERFORMANCE REQUIREMENTS A. Applicable standards for inspection and quality control shall be Appendix J (Architectural Trim Requirements) in PCI MNL - 117 "Manual for Quality Control for Plants and Production of Architectural Precast Concrete Products" (3rd Edition) and PCI's "Architectural Precast Concrete Design Manual, 2nd Edition".
B. The Architectural Precast Concrete units shall show no obvious repairs or imperfections other than minimal color variations when viewed with the unaided eye at a 20 foot distance in good typical daylight illumination.
C. Any unacceptable precast coping deemed unacceptable by the Architect are to be replaced by the Contractor.
END OF SECTION 03 45 00
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SECTION 04 01 20 – UNIT MASONRY RESTORATION
PART 1 GENERAL
1.01 RELATED WORK SPECIFIED ELSEWHERE
A. Cutting and Chipping
B. Repairing of Cracks
C. Restoration Work
1.02 RELATED SECTIONS
A. Section 04 01 23: Masonry Cleaning
B. Section 04 05 13: Mortar and Masonry Grout
C. Section 03 30 00: Cast-in-Place Concrete
D. Section 32 13 00: Concrete Paving
E. Section 32 13 73: Concrete Paving Joint Sealants
F. Section 32 14 16: Mortar Set Pre-Cast Concrete Paving Units
1.03 REFERENCES
A. American Society for Testing and Materials (ASTM):
1. ASTM C881 Specification for Epoxy-Resin-base Bonding System for Concrete
2. ASTM C928 Specification for Packaged, Dry Rapid-Hardening Cementations Materials for Concrete Repairs
3. ASTM C1170 Specification for Packaged Dry, Hydraulic-Cement Grout (Non-shrink)
1.04 DEFINITIONS
A. Portions of the building involved in this work will be in continuous operation during the construction period. This will require that the Contractor plan the Work carefully to work around unavoidable obstacles in the execution of the Work.
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1.05 QUALITY ASSURANCE
A. Repair and restoration of existing masonry surfaces shall be performed by a skilled and experienced subcontractor specializing in the restoration of masonry with at least five years experience in the type of work involved.
B. Repair and restoration of existing stone, concrete and unit masonry work shall achieve security, strength, and weather protection, as applicable and required, and shall preserve the integrity and continuity of the structure.
C. Repair and restoration of existing masonry work shall successfully duplicate undisturbed adjacent finishes, colors, textures, and profiles. Where there is a dispute as to whether or not duplication is successful or has been achieved to as reasonable degree, the Architects judgment shall be final.
PART 2 PRODUCTS
2.01 MATERIALS, EQUIPMENT, AND FACILITIES
A. Requirements: Provide all materials, equipment, tools, appurtenances, facilities, and services as required for performing and completing all repair and restoration of existing stone and unit masonry as indicated.
B. Equipment, Tools, and Materials: Provide appropriate and proper equipment, tools, and materials for the chipping and air-pressure cleaning of cracks in masonry, for pressure injection grouting of cracks in mortar joints or water water-blasting of masonry surfaces, and for hose cleaning of masonry.
C. Stone and Unit Masonry Materials: Where cut stone, brick, concrete or concrete masonry units are damages and require replacement, provide new stone or masonry units that match exactly the species, color, and texture of adjacent masonry surfaces. Replacement of cut stone and concrete masonry units require approval of the Architect before they may be used in the work.
D. Mortar Bonding Agent: Adhesive for the bonding of new mortar and grout to existing masonry and mortar shall be an epoxy adhesive meeting requirement of ASTM C881, of type required for the conditions.
E. Mortar Repair Materials:
1. Mortar: Mortar for joints and tuck pointing shall be an epoxy mortar, polymer- fortified mortar, or similar high-strength bonding mortar conforming with ASTM C928. Minimum comprehensive strength at 28 days shall be 2,500 psi.
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2. Sand: Sand shall be a clean, washed, kiln-dried, fine sand, all passing a U.S. Standard No. 16 sieve.
F. Grout: Grout for pressure-injection grouting shall be a high-strength, nonshrink, cementitious, adhesive grout conforming with ASTM C1107, Grade C, or a high- strength, non-shrink, manufactured epoxy adhesive grout. Minimum compressive strength at 28 days shall be 4,000 psi.
G. Cleaning Agent: Refer to section: 04 01 23 – Masonry cleaning
PART 3 EXECUTION
3.01 REQUIREMENTS
A. Perform cutting, chipping, patching/restoring work, and cleaning in a manner to prevent damage to other work, and as required to return exterior building surfaces to essentially their original condition and configuration.
B. Major cracks shall be repaired and filled by pressure-injection grouting. All other cracks shall be repaired in a manner most appropriate and as required for weather proofing the building or structure.
C. Do not cut or alter structural members when not indicated without prior approval of the Architect.
D. Finish or refinish as required to match adjacent finishes.
3.02 CUTTING AND CHIPPING
A. Cutting and chipping work shall be neatly and accurately performed with proper tools and equipment. Cuts shall be of minimum size required for the work. Check the locations carefully of existing steel reinforcement before cutting or chipping.
B. Existing work to remain shall be properly protected to prevent damage from cutting and chipping operations.
3.03 REPAIRING OF CRACKS
A. Cracks shall be repaired and filled with grout by the pressure-injection process. Masonry joint cracks shall be mapped, and the injection shall be on center-to-center spacing as necessary to achieve proper structural bonding. Replace all cut stone and masonry units that have cracks across the face.
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B. Adhesive material shall be mixed with grout in proportion necessary to provide structural bonding of concrete. Grout material shall be inserted into cracks by pressure-injection grouting in accordance with the manufacturer’s installation instructions and recommendations.
C. Minor cracks too small for injection grouting shall be repaired as specified in Article 3.04 for restoration work.
3.04 RESTORATION WORK
A. Preparation of Existing Surfaces: Where masonry is cracked or spalled, cut or chip out to solid surface. Use power wire brush and high pressure air to clean masonry of dirt, dust, and loose particles. Clean exposed reinforcing bars with power wire brushing to remove all visible corrosion.
B. Repairing of Masonry:
1. Repairing and patching of existing masonry surfaces and joints shall be expertly performed with specified adhesive, mortar, and grout materials. At completion, patched surfaces shall match adjacent existing surfaces as closely as possible.
2. Mortar bonding agent, mortar, and grout shall be applied or installed where indicated, or where otherwise required, in accordance with the manufacturer’s instructions and recommendations.
3. Where necessary to build out cut, spalled, or chopped masonry surfaces, mix mortar bonding agent, mortar, and sand into a special mortar, and apply in layers as required to fill out or build up surfaces. Float, trowel, or textured surfaces to match adjacent existing surfaces.
4. Where indicated or required to replace existing, damaged cut stone or concrete masonry units, expertly cut out damaged units with masonry saw or cutting wheel. Clean out all loose particles and dust with air-pressure cleaning. Then install new units to match adjacent existing masonry surfaces as closely as possible, including joint treatment.
3.05 CLEANING
A. Where existing masonry surfaces are indicated to be cleaned or washed to remove dirt, dust, and stains, such surfaces shall be washed clean to an even and uniform effect, free of stains and blemishes. Method of cleaning (e.g. high-pressure water, steam cleaning, or diluted acid cleaning) are subject to approval by the Architect.
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B. All adjacent glass areas shall be cleaned after washing of masonry surfaces.
C. Replace any wall damaged by the cleaning operations.
END OF SECTION 04 01 20
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SECTION 04 01 21 – MASONRY RESTORATION
PART 1 GENERAL
1.01 RELATED WORK SPECIFIED ELSEWHERE
A. Masonry Cleaning: Section 04 01 23.
B. Joint Sealers: Section 32 13 73.
1.02 SUBMITTALS
A. Product Data: 1. Portland Cement: Brand and manufacturer’s name. 2. Lime: Brand and manufacturer’s name. 3. Mortar Pigments: Brand and manufacturer’s name. 4. Packaged Products: Manufacturer’s specifications and application instructions for products specified. 5. Sand: Location of pit, name of owner, and previous test data.
B. Samples: Deliver to the Site for comparison with existing masonry. 1. Mortar for Exposed Joints and Cracks: Each required type; minimum 12 inches long by full thickness, showing finish and color. 2. Masonry Units: Each required type, full size, showing finish and full color range.
1.03 QUALITY ASSURANCE
A. Field Examples: Prior to performing the Work of this Section, prepare a sample panel of not less than 2 sq ft for the masonry restoration Work required. Do not proceed further with the Work until the sample panel has been approved by the Architect. Approved samples will be used as quality standards for the Work. Maintain approved samples at the Site until the Work is completed. 1. Sample panels may be a portion of existing masonry which is to be restored, at a location directed by the Architect. 2. Apply the field example required in Section 07 19 00 over the field examples required in this Section and adjoining unrestored masonry surfaces for comparison of the effect of the water repellent coating on the new and existing masonry.
B. Material Container Labels: Material containers shall bear the manufacturer’s label indicating manufacturer’s name, trade name of product, lot number, shelf life of product, and mix ratio (if applicable).
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1.04 DELIVERY, STORAGE, AND HANDLING
A. Packaged Products: 1. Deliver materials to the site in manufacturer’s original, sealed containers. Do not deliver materials which have exceeded shelf life limitation set forth by the manufacturer. 2. Comply with manufacturer’s printed instructions for storing and protecting materials.
B. Bulk Aggregate: Store in a manner which will keep aggregate clean and protected from the weather elements.
1.05 PROJECT CONDITIONS
A. Environmental Requirements: 1. For factory packaged products, comply with the manufacturer’s printed limitations and instructions. 2. At temperatures below 40 degrees F, maintain mortar temperature between 40 degrees F and 120 degrees F unless otherwise recommended by the material manufacturer. If necessary, heat mixing water and sand to produce the required results. 3. At temperatures between 32 degrees F and 20 degrees F, provide wind breaks and cover the restored masonry to prevent wetting and freezing. Maintain restored masonry above freezing for not less than 16 hours using auxiliary heat or insulating blankets. 4. At temperatures below 20 degrees F, provide heated enclosures for performing the Work. At the end of the workday, maintain the enclosures and keep the Work from freezing for not less than 24 hours. 5. Do not lower freezing point of mortar by use of antifreeze, calcium chloride, or other additives. 6. Do not use frozen materials or materials coated with ice or frost.
PART 2 PRODUCTS
2.01 MATERIALS
A. Mortar Types: 1. Type N Mortar: ASTM C 270, Type N. 2. Modified Type N Pointing Mortar: ASTM C 270, Type N, modified with an acrylic additive in accordance with the additive manufacturer’s printed instructions for the intended usage.
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3. Type C-1 Patching Mortar: “Thorite” by Thoro System Products; “Sonopatch” by Sonneborn Building Products; “Deco-Rez TPM 722” or “Deco-Rez TPM 723” by General Polymers Corp.; “SikaTop 122” or “SikaTop 123” by Sika Corp.; “Emaco R300 CI” or “Emaco R320 CI” or “Emaco R350 CI” or “Emaco S88 CI” by Master Builders, Inc.
B. Mortar Color: For exposed Type N mortar and Modified Type N pointing mortar, select materials (complying with the requirements) and proportion pigments with other ingredients as necessary to match the color of existing corresponding materials.
C. Mortar Pigments: High purity, finely ground, chemically inert, unfading, lime proof mineral oxides specially prepared for use in mortar.
D. Acrylic Additive: “Acryl 60” by Thoro System Products; “Sonocrete” by Sonneborn Building Products; “Anchor - IT” by Anti-Hydro Waterproofing Co.
E. Masonry Units: Match existing units in type, grade, size, appearance, and texture unless otherwise indicated.
PART 3 EXECUTION
3.01 PREPARATION
A. Protection: Protect adjacent surfaces not being restored. Protect sills, ledges, and projections from material droppings.
B. Surface Preparation: 1. Prepare surfaces to be restored in compliance with product manufacturer’s printed instructions and as specified. 2. Remove dirt, dust, and foreign material from surfaces to be restored. 3. Clean areas to be restored with compressed air or water flushing, except as otherwise recommended by the mortar manufacturer.
C. Materials Preparation: 1. Wet bricks that have a high absorption rate. Wet bricks until water runs off. Install bricks when surface is slightly damp. 2. Prepare exposed Type N mortar and Modified Type N pointing mortar to match the color and appearance of existing adjoining mortar.
3.02 REPOINTING JOINTS
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A. Rake or cut out joints to a minimum depth of 5/8 inch and until sound surface is reached. Where cutting is required to remove existing mortar and joint filler, use a rotary power masonry saw wherever possible without damaging masonry. Cut the mortar and joint filler cleanly from the sides of the joints, leaving square corners. Flush joints clean with water or compressed air.
B. Dampen joints slightly before application of mortar, making sure there is no free water. Backpack joints tightly out to a depth of 5/8 inch from the face of masonry with Modified Type N pointing mortar. After backpacking mortar has attained initial set, redampen remaining 5/8 inch depth of joints, fill with Modified Type N pointing mortar, and finish joints to match existing adjoining joints. 1. Where joint sealant is required, backpack the joints tightly out to a uniform depth of 1/4 inch. 2. Where joint sealant is required, cut out the joints or backpack the joints (as required by existing conditions) to the depth shown on the Drawings.
3.03 FILLING JOINTS
A. Rake out loose mortar until sound surface is reached. Flush joints clean with water or compressed air.
B. Dampen joints slightly before application of mortar, making sure there is no free water. Fill joints with Modified Type N pointing mortar flush with adjoining masonry.
3.04 FILLING CRACKS
A. Non-Moving Cracks: Clean cracks with water flushing or compressed air. Dampen contact surfaces. Fill cracks with Modified Type N pointing mortar flush with adjoining masonry. 1. Enlarge cracks 1/8 inch or less in width to 1/4 inch wide by minimum 3/8 inch deep prior to cleaning and filling. Use masonry saw or power chisel.
B. Moving Cracks: Cut out cracks more than 1/8 inch in width (for sealant) as required to provide joint configuration shown on the Drawings. Use masonry saw or power chisel. Clean and dry the contact surfaces.
3.05 PATCHING MASONRY SURFACES
A. Remove all loose and deteriorated material. Prepare substrate surface. Remove paint, oil, grease, and salt deposits from surface to be restored. Use cleaning agent, recommended by manufacturer of patching mortar, where required. Fill the depressed area or void with Type C-1 patching mortar. Provide a uniform wood float finish, flush and even with the adjacent existing surfaces. If necessary, apply
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the patching mortar in layers to fill the depression. Comply with manufacturer’s printed instructions.
3.06 CLEANING
A. As the Work proceeds and after completion of Work, remove excess mortar, droppings, smears, stains, and other soiling substances resulting from the Work of this Section. Remove misplaced materials from surfaces immediately.
END OF SECTION 04 01 21
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SECTION 04 01 23 - MASONRY CLEANING
PART 1 GENERAL
1.01 SECTION INCLUDES
A. The Work of this Section includes cleaning brick, and cast in place concrete by a chemical cleaning method using pressure spray equipment. Sure Klean Burnished Custom Masonry Cleaner removes common construction and atmospheric staining from custom masonry and other architectural concrete surfaces. This general purpose, non etching acidic cleaner removes rust, mud, oil, atmospheric dirt, mortar smears and other stains without altering the surface texture. Burnished Custom Masonry Cleaner adds depth to colors and brightens white matrices and exposed aggregate. 1. Improves color uniformity and enhances appearance. 2. Contains no muriatic acid. 3. Removes common construction stains and atmospheric dirt. 4. Safe for most pigmented concrete and colored mortar. 5. Water rinse able.
1.02 RELATED WORK SPECIFIED ELSEWHERE
A. Masonry Restoration: Section 04 01 21.
B. Joint Sealers: Section 32 13 73.
1.03 SUBMITTALS
A. Product Data: Cleaning materials manufacturers’ catalog sheets, specifications, and application instructions.
B. Quality Control Submittals: 1. Cleaning Contractors Qualifications Data: a. Firm name, address, and telephone number. b. Period of time firm has performed masonry cleaning work, and names and addresses of the required number of similar projects completed by the firm. 2. Cleaners Qualifications Data: a. Name of each person who will be performing the Work of this Section. b. Employee’s name, address, and telephone number. c. Names and addresses of the required number of similar projects that each person has worked on which meet the experience criteria.
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3. Cleaning Procedure: Proposed cleaning procedure for cleaning masonry including each step in the cleaning process, and type, size and location of equipment.
1.04 QUALITY ASSURANCE
A. Cleaning Contractor’s Qualifications: The firm performing the Work of this Section shall have been regularly engaged in masonry cleaning work for a minimum of five years, and shall have completed 5 similar projects using the cleaning method specified.
B. Cleaners’ Qualifications: The persons cleaning the masonry and their supervisors shall be personally experienced in the required method of masonry cleaning, and shall have worked on 5 similar projects within the last 3 years.
C. Cleaning Equipment: 1. Pressure Spray Equipment: a. Pump Pressure Rating - Adjustable pressure b. Pump Flow Rate (Volume) - gpm. c. Nozzle Type or Spray Tip: Fan type providing a 15 to 40 degree fan.
D. Field Examples: 1. Before the concrete paving and wall cleaning operations are started, clean a sample panel of approximately 5 square feet of each type of masonry required to be cleaned at a location on the building directed by the Architect. If the sample panel is not satisfactory, as determined by the Architect, modify the cleaning procedure and clean another sample panel. Continue cleaning sample panels until satisfactory results are obtained and approved by the Architect. a. For cleaning procedures other than specified, but which generally follow the method(s) specified, submit proposed procedure for approval and clean additional sample panels adjacent to the above sample panels for comparison of results. 2. Approved panels and procedures will become the cleaning standard for the Work of this Section.
1.05 DELIVERY, STORAGE, AND HANDLING
A. Deliver cleaning materials in manufacturer’s packaging, with instructions for use.
B. Store, protect, and handle cleaning materials in accordance with manufacturer’s instructions.
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1.06 PROJECT CONDITIONS
A. Environmental Requirements: 1. Make necessary provisions for the diversion and disposal of cleaning, water and solutions, including the furnishing of pumps if required. Take precautions as required to prevent damage and contamination resulting from run off of cleaning solution. 2. Do not wet or wash down masonry surfaces when the temperature is below 40 degrees F or may drop below 40 degrees F within 24 hours.
B. Existing Conditions: 1. Take necessary precautions and protective measures to prevent injury to people and damage to property and/or landscape materials in areas adjacent to the Site, including damage due to wind drift of cleaning materials. 2. Pumping equipment will not be allowed in or on the building.
PART 2 PRODUCTS
2.01 MATERIALS
A. Prosoco Burnished Custom Masonry Cleaner
B. Liquid Detergents:
C. Water: Clean and potable.
2.02 MIXES
A. Cleaning Agent Mix Ratio: 1 part concentrate : 3 parts water When calculating the volume of cleaner required for porous, textured surfaces, assume 50 square feet per gallon of prepared cleaner. For dense, smooth surfaces, assume up to 150 square feet per gallon of prepared cleaner. The coverage rate chart assumes an average coverage rate of 100 square feet per gallon of prepared cleaner.
2.03 MATERIALS
A. Cleaning Materials: Solutions of chemical cleaning agents and additives that will remove the dirt, grime, carbon, surface residues, stains, graffiti, and other foreign material from the masonry surfaces, but will not damage the masonry.
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1. Cleaning agents shall be formulated and manufactured specifically for cleaning the particular kind of masonry required to be cleaned. 2. Cleaning agents and chemical analysis sheets must be provided to FIT’s safety director for acceptance prior to work commencing. 3. Apply Prosoco Masonry Cleaner with a soft-fibered, Tampico masonry washing brush or low pressure spray equipment. Do not atomize. Do not use pressure spray above 50 psi.
PART 3 EXECUTION
3.01 PREPARATION
A. Protection: 1. Protect windows, doors, fixtures, air conditioners, flashings, and other adjacent surfaces not required to be cleaned from damage. 2. Protect landscaping, and other improvements near the building from damage.
B. Surface Preparation: 1. Remove heavy accumulations of dirt, and other foreign material from surfaces required to be cleaned. 2. Perform this preliminary cleaning by brushing, sweeping, wiping, scraping, vacuuming, and other approved methods as required by existing conditions. Use tools that will not damage the masonry.
3.02 CLEANING MASONRY
A. Pre-wet the masonry surfaces with water.
B. Prepare cleaning solutions and operate pressure spray equipment in accordance with cleaning materials manufacturer’s recommendations, unless otherwise indicated. 1. Clean areas not accessible to spray equipment with bristle brushes.
C. Clean masonry equal in appearance to the approved sample panels.
D. Clean masonry free of dirt, grime, soot, carbon, efflorescence, moss, stains, graffiti, and other foreign material. Leave masonry uniformly clean and undamaged.
E. Clean all features and appurtenances of the masonry such as arches, lintels, returns, reveals, projecting courses, caping, fascias, and other features.
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F. Thoroughly rinse off the masonry surfaces with water.
3.03 CLEAN-UP
A. Clean and restore sidewalks, paving, and lawns soiled or damaged as a result of the cleaning operations. Remove all protective materials.
END OF SECTION 04 01 23
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SECTION 04 05 13 - MORTAR AND MASONRY GROUT
PART 1 GENERAL
1.01 REFERENCES
A. Standards: 1. Mortar: ASTM C 270, except as otherwise specified. 2. Grout: ASTM C 476.
1.02 SUBMITTALS
A. Product Data: 1. Portland Cement: Brand and manufacturer's name. 2. Masonry Cement: Brand and manufacturer's name. 3. Lime: Brand and manufacturer's name. 4. Sand(s): Location of pit, name of owner, and previous test data. 5. Color Pigments: Brand and manufacturer's name.
1.03 DELIVERY, STORAGE, AND HANDLING
A. Deliver, store, and handle materials in a manner which will insure the preservation of their quality and fitness for the Work.
B. Store cement and lime on raised platforms under waterproof, well ventilated cover.
PART 2 PRODUCTS
2.01 MATERIALS
A. Cement: One of the following complying with the indicated requirements: 1. Portland Cement: ASTM C 150, Type 1, of natural color or white as required to produce the desired color. a. Fly Ash: Comply with ASTM C593. 1) Recycled Content: Minimum 15 percent pre-consumer recycled content at contractor's option. a) Type 1: 81 g, 15 percent. 2. Masonry Cement: ASTM C 91, of custom color as required by the Architect to produce the desired color. a. Fly Ash: Comply with ASTM C593. 1.) Recycled Content: Minimum 5 percent post-consumer recycled content, or minimum 20 percent pre-consumer recycled content at contractor's option.
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a) Type M: 27 g, 5 percent; 108 g 20 percent. b) Type S: 26 g, 5 percent; 102 g, 20 percent. c) Type N: 24 g, 5 percent; 96 g 20 percent.
B. Hydrated Lime: ASTM C 207, Type S.
C. Mortar Sand: ASTM C 144, except that for joints less than 1/4 inch thick use sand graded with 100 percent passing the No. 16 sieve. 1. Sand for White Mortar: Natural white sand or ground white stone. 2. Sand for Colored Mortar: Ground marble, granite, or other sound stone, as required to match approved sample.
D. Grout Sand: ASTM C 404.
E. Color Pigments: High purity, finely ground, chemically inert, unfading, lime proof mineral oxides specially prepared for use in mortar.
F. Water: Clean and free of deleterious amounts of acids, alkalis, and organic materials.
2.02 MIXES
A. Mortar for Unit Masonry: Comply with ASTM C 270, proportion specifications, except limit materials to those specified. 1. Colored Mortar: Proportion color pigments with other ingredients as necessary to match required color, except limit pigments other than carbon black to a maximum of 10 percent of cement content by weight and limit carbon black to a maximum of 3 percent of cement content by weight.
B. Grout: Comply with ASTM C 476. If grout types are not indicated on Drawings, furnish type (fine or coarse) most suitable for the particular job conditions to completely fill cavities and embed reinforcement and other built-in items. Furnish color options for Architects approval.
PART 3 EXECUTION
3.01 INSTALLATION
A. Refer to sections of Specifications which require mortar and masonry grout.
3.02 MORTAR SCHEDULE
A. Where mortar types are not indicated on Drawings or specified, use types as follows:
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1. Type M for unit masonry below grade in contact with fill materials. 2. Type S for concrete masonry units. 3. Type N for brick masonry units. a. Proportion Portland cement, lime, and sand in a 1:1:6 ratio.
END OF SECTION 04 05 13
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SECTION 04 21 13 - BRICK MASONRY
PART 1 GENERAL
1.01 RELATED WORK SPECIFIED ELSEWHERE
A. Masonry Restoration: Section 04 01 21.
B. Mortar: Section 04 05 13.
C. Flashing and Sheet Metal: Section 07 60 00.
1.02 SUBMITTALS
A. Samples: 1. Facing Brick: 2, each type, showing full range of color and texture. 2. Building Brick (Exposed Exterior): 2, showing full range of shading. 3. Precast Concrete Cap: 4-6 inch long section.
B. Quality Control Submittals: 1. Test Reports: Submit certified test reports for each type of brick specified as follows: a. Compressive strength. b. Twenty-four hour cold water absorption. c. Five hour boiling water absorption. d. Saturation coefficient. e. Initial rate of absorption (suction).
1.03 QUALITY ASSURANCE
A. Field Examples: 1. Do not start brick masonry until a sample panel has been approved by the Architect. 2. High standard of workmanship is required for all masonry built of the same materials. Failure to maintain this standard will be cause for rejection of the masonry.
1.04 DELIVERY, STORAGE AND HANDLING
A. Deliver brick for use in exposed Work on pallets. Handle by mechanical means, by hand or tongs. Dumping will not be permitted.
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B. Store brick off the ground to prevent contamination by mud, water, dust or other materials likely to cause staining or other defects.
C. Cover brick, when necessary, to protect from the elements.
D. Protect accessories from the elements.
1.05 PROJECT CONDITIONS
A. Environmental Requirements; Cold Weather Conditions: 1. At temperatures below 40 degrees F, maintain mortar temperature between 40 degrees F and 120 degrees F. If necessary, heat mixing water and sand to produce the required results. 2. At temperatures between 40 degrees F and 32 degrees F, protect masonry from rain and snow for 24 hours after laying. 3. At temperatures between 32 degrees F and 20 degrees F, provide wind breaks and cover the masonry to prevent wetting and freezing. Maintain masonry above freezing for not less than 24 hours using auxiliary heat or insulating blankets. 4. At temperatures below 20 degrees F, provide heated enclosures for laying the masonry. At the end of the workday, maintain the enclosures and keep the Work from freezing for not less than 24 hours. 5. Do not lower freezing point of mortar by use of antifreeze, calcium chloride or other additives. 6. Do not use frozen materials or materials coated with ice or frost.
PART 2 PRODUCTS
2.01 FACING BRICK
A. Facing Brick (Exterior): ASTM C 216, Grade SW, Type FBS. 1. Size, Color, and Texture: 2. Size, Color, and Texture: Match existing adjacent brickwork.
B. Facing Brick (Interior): ASTM C 216, Grade MW, Type FBS. 1. Size, Color, and Texture: 2. Size, Color, and Texture: Match existing adjacent brickwork.
C. Option: Facing brick may only be solid brick and shall be used for corbeling. If cored brick are furnished, core holes shall be not less than 3/4 inch from any edge and no more than 25 percent of the gross area of the brick.
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D. Special Moulded Shapes: Furnish for applications where units cannot be sawn from standard sizes.
2.02 BUILDING (COMMON) BRICK
A. Building Brick (Exterior): ASTM C 62, Grade SW. 1. Size, Color, and Appearance: 2. Size, Color, and Appearance: Match existing adjacent brickwork.
B. Building Brick (Interior and Back-Up): ASTM C 62, Grade MW. 1. Size, Color, and Appearance: 2. Size, Color, and Appearance: Match existing adjacent brickwork.
2.03 AIR VENTS, WEEP VENTS, AND CAVITY WALL NET
A. Air Vents: Flexible ultra violet resistant polypropylene co-polymer DA1006 Cell Vent by Dur-O-Wal Inc., 7777 Washington Village Dr., Ste. 130, Dayton, OH 45459, (888) 977.9600, www.dur-o-wal.com.. 1. Size: Height 2-1/2 inch maximum except as indicated otherwise, by full width of brick. 2. Color: To match mortar color.
B Weep Vents: Flexible ultra violet stable recycled polyester mesh, rectangular shape by Mortar Net USA Ltd, 541 S. Lake St., Gary, IN 46403, (800) 664-6638, www.mortarnet.com. 1. Size: Height 2-1/2 inch maximum except as indicated otherwise, by full height of Brick. 2. Color: To match mortar color.
2.04 ACCESSORIES
A. Masonry Wall Reinforcement: Joint reinforcement factory fabricated from cold- drawn steel wire, ASTM A 82, truss or ladder design, with 9 gage deformed steel wire longitudinal rods welded to 9 gage steel wire cross ties spaced 16 inches oc; width 1-1/2 to 2 inches less than total wall thickness. Furnish factory fabricated corner and tee sections for corners and wall intersections. 1. Finish for Exterior Walls: 1.5 oz per sq ft hot dipped galvanized after fabrication, ASTM A 153, Class B-2. 2. Cavity Wall Construction: Ladder design fabricated with drip notch in cross ties centered over cavity. 3. For walls with concrete masonry unit back-up wythe, reinforcement shall have a third longitudinal rod located for proper embedment at internal face shell of concrete masonry units.
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4. Provide units with adjustable 2 piece rectangular ties where horizontal joints of facing wythe do not align with those of back-up.
B. Adjustable Wall Ties: 3/16 inch diameter cold-drawn steel wire, ASTM A 82; 2 piece construction consisting of pintle section with 2 legs and corresponding eye section. Maximum clearance between connecting parts shall be 1/16 inch. Wall tie shall be of size for at least 1-1/2 inch embedment into the mortar bed of solid masonry units. 1. Finish for Exterior Walls: 1.5 oz per sq ft hot dipped galvanized after fabrication, ASTM A 153, Class B-2. 2. For solid masonry wythes, provide z-shaped ties. 3. For composite wythes (face brick with hollow concrete masonry backing), provide rectangular shaped ties.
C. Flexible Anchors: 1.5 oz per sq ft hot dipped galvanized steel anchors which will permit horizontal and vertical movement of masonry but will maintain lateral restraint, and as follows: 1. For Anchorage To Concrete Framework: 2 piece anchors with 14 gage sheet steel dovetail section and rectangular or vee-shaped 3/16 inch diameter wire tie section sized to extend to within one inch of face of masonry.
D. Dovetail Anchor Slot Concrete Inserts: 24 gage galvanized steel, with filler strip; slot sized to fit dovetail anchor.
E. Corrugated Wall Ties: 22 gage corrugated steel, 7/8 inch wide, 7 inches long, ASTM A 153, Class B-2, 1.5 oz per sq ft hot dipped galvanized after fabrication.
F. Tiebars: 1-1/4 x 1/4 x 28 inch long steel bars with 3 inch long right angle bent ends, 1.5 oz per sq ft hot dipped galvanized after fabrication. Adjust length of bars as required when obstructions are encountered.
G. Buck Anchors (For Anchoring New Masonry To Existing Construction): 1-1/4 x 1/8 x 8 inch long z-type steel buck anchor with 2 inch long right angle bent ends, bolt hole in one bent end, 1.5 oz per sq ft hot dipped galvanized after fabrication. Furnish 3/8 inch diameter galvanized machine bolt and non-ferrous metal expansion shield.
2.05 CLEANING AGENTS
A. Powder: 1. Trisodium phosphate. 2. Detergent, biodegradable type.
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B. Liquid: Green Clean-100 by L&W Stone Corp., 1036 South St., Orland, CA 95963, (800)-346-9739, www.lwstonecorp.com or; “Clean As You Go” by Diedtech Technologies, Inc., 7373 S. 6th St., Oak Creek, WI 53154, (800) 323- 3565, www.diedrichtechnologies.com, or equal.
2.06 SOURCE QUALITY CONTROL
A. Brick Tests: Test brick in accordance with ASTM C 67. Have tests performed by a qualified independent testing laboratory.
PART 3 EXECUTION
3.01 PREPARATION
A. Wetting Brick: 1. Wet brick that absorb 20 drops of water (placed in a one inch circle) in less than 90 seconds. 2. One day before use of brick (or several hours in extremely warm weather), play a waterhose on the brick pile until excess water runs off. Allow brick surfaces to dry before use.
B. Clean loose and foreign materials off supporting surfaces just prior to laying brick.
C. Protection: 1. Protect face materials against staining. 2. Remove misplaced mortar immediately. 3. Protect sills, ledges, off-sets, and similar items from mortar drippings and other damage during construction. 4. Protect newly laid masonry from exposure to precipitation, excessive drying, freezing, soiling, and other harmful elements. 5. Cover top of walls with non-staining waterproof covering when Work is not in progress. Place with minimum 2 foot overhang of protective covering on each side of wall and securely anchor.
3.02 INSTALLATION
A. General: 1. Pattern Bond: a. Lay exposed brick in running bond, unless otherwise indicated. b. Bond unexposed brick by lapping units at least 2 inches. 2. Joining of Work:
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a. When a run of brickwork cannot be completed by the end of the day, stop off horizontal run of brickwork by racking back 1/2 length of unit in each course. b. Toothing is permitted as indicated on drawings. c. Where fresh brickwork joins set brickwork, remove loose brick and mortar. Clean and lightly wet exposed bond surfaces of set brickwork. 3. Cutting Brick: Cut exposed brick with a motor-driven saw or by other methods which provide straight and true cuts. 4. Mortar Joint Thickness: a. Lay brick with 3/8 inch joints. b. Match existing joint thickness. 5. Joint Tooling: a. Tool exposed joints when "thumb-print" hard with a rounded jointer which is slightly larger than thickness of joint. b. Trowel-point or concave-tool exterior joints below grade. c. Flush-cut all other joints not required to be tooled. 6. Movement Joints: a. Install expansion joints and control joints as required by the Drawings. b. Keep joints free of mortar and debris. c. Do not bridge expansion joints and control joints in wall system with reinforcement, anchors or ties. 7. Weep Holes: a. Form weep holes in mortar joints of exterior wythe of cavity walls along bottom of cavity over foundations, bond beams, through wall flashings, and other water stops in wall. See section 2.03 for size and interior installation mesh b. Form weep holes by leaving head joint free and clean of mortar, and raking out bed joint at weep hole. c. Space weep holes approximately 24 inches oc. Keep weep holes free of mortar droppings and other obstructions. 8. Flashings: a. Clean contact surfaces and remove projections which might puncture the flashing. b. Place flashing on bed of mortar and cover with mortar. 9. Built-In Work: a. Fit brick closely around built-in Work. b. Except where cavities are required, fill all spaces between built-in Work (including metal frames and structural steel) and brickwork solidly with mortar.
B. Laying Brick:
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1. Unless otherwise required by the design, lay brick plumb, true to line and with level courses accurately spaced within allowable tolerances. 2. Completely fill mortar joints. Do not furrow bed joints. Butter ends of brick with sufficient mortar to fill head joints. Point closure joints full. 3. Collar Joints: Except in cavity walls, fill vertical-longitudinal joint between wythes by slushing and rodding the joint full of mortar. 4. Do not pound corners and jambs to fit stretcher units after they are set in position. Where an adjustment must be made after mortar has started to harden, remove units and clean units and joints of mortar and re-lay with fresh mortar.
C. Cavity Walls: 1. Keep cavity clean by placing wood strips with attached wire pulls on cross ties. Before placing next level of ties, remove and clean wood strips. 2. As Work progresses, trowel protruding mortar fins in cavity flat onto inner face of wythe.
D. Non-Bearing Partitions: 1. Unless otherwise shown on the Drawings, extend partitions from top of structural floor to bottom surface of floor construction. Wedge with small pieces of tile, slate or brick. Fill topmost joint with mortar.
E. Structural Bonding: 1. Use masonry bond method for corners and intersections of loadbearing brick walls wherever possible. 2. Anchoring Intersecting Bearing or Shear Walls Required to be Erected Separately: a. Regularly block vertical joint with 8 inch maximum offsets. b. Place tiebars in horizontal joints at not more than 3 foot centers vertically. 3. Bond multi-wythe brick walls with continuous masonry wall reinforcement, spaced not more than 16 inches vertically. Lap individual lengths of reinforcement 6 inches. 4. Stack Bond: Embed continuous masonry wall reinforcement in horizontal joints at vertical intervals not to exceed 16 inches. Reinforcement shall have not less than one wire longitudinal rod for each 6 inches of wall (wythe) thickness or fraction thereof. Lap individual lengths of reinforcement 6 inches.
F. Anchoring Brick to Concrete Unit Masonry: 1. Tie adjacent wythes of masonry walls together with continuous masonry wall reinforcement spaced vertically not more than 16 inches oc. Lap individual lengths of reinforcement 6 inches.
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a. Where horizontal mortar joints of back-up wythe and face wythe do not align or where one wythe is required to be constructed before the other, tie adjacent wythes of masonry walls together with adjustable wall ties spaced 16 inches vertically and 24 inches horizontally, in conjunction with continuous masonry wall reinforcement.
G. Anchoring Brick to Concrete: 1. Insert dovetail section of flexible anchors in dovetail anchor slot built into concrete. Space anchors 16 inches oc vertically and 24 inches oc horizontally. 2. Maintain a space not less than 1/2 inch wide between brick and concrete. Keep space free of mortar and other rigid material to permit differential movement between concrete and brick.
H. Anchoring Non-Bearing Partitions: 1. Anchor partitions abutting or intersecting other walls or partitions with adjustable wall ties, placed at vertical intervals of not more than 24 inches.
I. Anchoring Partitions and Infill Abutting Existing Construction: Install buck anchors in bed joints 16 inches oc vertically. Build one bent end into the masonry. Expansion bolt other bent end to existing construction.
J. Anchoring Brick Veneer to Wood Construction: 1. Use one corrugated wall tie for each 4 sq ft of wall area. 2. Space ties not more than 24 inches horizontally and vertically. 3. Embed ties at least 2 inches in horizontal joint of facing. 4. Install additional ties around openings. Place ties within 12 inches of opening, spaced at not more than 24 inch centers around perimeter.
3.03 TOLERANCES
A. Maximum Allowable Variation From Plumb: 1. In lines and surfaces of columns, walls and arises: a. 1/4 inch in 10 ft. b. 3/8 inch in any story or 20 ft maximum. c. 1/2 inch in 40 ft. 2. For external corners, expansion joints and other conspicuous lines. a. 1/4 inch in any story or 20 ft maximum. b. 1/2 inch in 40 ft.
B. Maximum allowable variation from level or grades for exposed lintels, sills, parapets, horizontal grooves, and other conspicuous lines:
BRICK MASONRY 04 21 13 - 8 FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK OF IT AND RECONSTRUCTION OF EXTERIOR RAMP
1. 1/4 inch in any bay or 20 ft. 2. 1/2 inch in 40 ft.
C. Maximum allowable variation of linear building line from an established position in plan and related portions of columns, walls and partitions: 1. 1/2 inch in any bay or 20 ft maximum. 2. 3/4 inch in 40 ft.
D. Maximum allowable variation in cross-sectional dimensions of columns and thickness of walls: Not less than 1/4 inch smaller nor more than 1/2 inch larger than walls.
3.04 FIELD QUALITY CONTROL
A. Tests: 25 sample bricks of each kind specified may be selected by the Director's Representative from the brick delivered to the site for testing purposes. Package and ship selected sample bricks to the Division of Construction's Albany address for transmittals indicated in Section 013300.
3.05 CLEANING
A. Dry brush brickwork after mortar has set, at end of each day's Work.
B. Clean brickwork, using the following steps: 1. Clean initially with stiff brushes and water. 2. If staining or soiling persists, reclean with stiff brushes and a solution of trisodium phosphate, detergent, and water (1/2 cup of each in one gallon of water). Rinse with clean water. 3. If the above methods are unsuccessful, use specified liquid cleaning agent in conformance with the manufacturer's instructions. Test the cleaning agent on a sample area, selected by the Director's Representative. Proceed with the cleaning of the Work after the sample has been approved by the Director's Representative. Protect adjacent non-masonry Work from contact with the cleaning solution.
END OF SECTION 04 21 13
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SECTION 05 51 20 – STRUCTURAL STEEL
PART 1 - GENERAL
1.1 WORK INCLUDES:
A. Cold formed steel framing B. Supports for counters C. Unistrut support to structural steel beams.
1.2 REFERENCES
A. Except as shown or specified otherwise, the Work of this Section shall meet the requirements of the following: 1. Design and Fabrication of Cold-Formed Shapes: “Specification for the Design of Cold-Formed Steel Structural Members”, by the American Iron and Steel Institute (AISI Specification). 2. Welding: “Structural Welding Code - Steel, AWS D1.1”, or “Structural Welding Code - Sheet Steel, AWS D1.3”, by the American Welding Society (AWS Codes). B. Organizations: 1. AISI: American Iron and Steel Institute, 1140 Connecticut Ave., NW, Suite 705, Washington, D.C. 20036, (202) 452-7100, www.steel.org. 2. AWS: American Welding Society, 550 N.W. LeJeune Rd., Miami, FL 33126, (800) 443-9353, www.aws.org. 3. ANSI: American National Standards Institute, 1819 L Street, NW, 6th Floor, Washington, DC 20036, (202) 293-8020, www.ansi.org. 4. ASME: ASME International, 3 Park Ave., New York, NY 10016-5990, (800) 843-2763, www.asme.org. 5. ASTM: ASTM International, 100 Barr Harbor Dr., PO Box C700, West Conshohocken, PA, 19428-2959, (610) 832-9500, www.astm.org. 6. MPI: The Master Painters Institute Inc., 2808 Ingleton Ave., Burnaby, BC, V5C 6G7, (888) 674-8937, www.specifypaint.com. 7. SSPC: The Society for Protective Coatings, 40 24th Street, 6th Floor, Pittsburgh PA 15222-4656, (877) 281-7772, www.sspc.or
1.3 SUBMITTALS
A. Shop Drawings: Show application to project. Furnish setting drawings and templates for installation of bolts and anchors in other Work. Indicate shop and field welds by standard AWS welding symbols in accordance with AWS A2.4.
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B. Product Data: Catalog sheets, specifications, and installation instructions for each fabricated item specified, except submit data for fasteners only when directed. 1.4 DELIVERY AND STORAGE
A. Coordinate delivery of items to be built into other construction to avoid delay. B. Promptly cover and protect steel items delivered to the Site.
PART 2 - PRODUCTS
2.1 MATERIALS
A. Steel Shapes, Plates, and Bars: ASTM A 36. B. Steel Plates to be Cold-Formed: ASTM A 283, Grade C. C. Steel Bars and Bar-Size Shapes: ASTM A 675, Grade 70; or ASTM A 36. D. Cold-Finished Steel Bars: ASTM A 108, grade as selected by fabricator. E. Steel Tubing: Hot-formed, welded or seamless, structural tubing; ASTM A 501. F. Cold-Drawn Steel Tubing: ASTM A 512, butt welded, cold-finished carbon steel tubing, sink drawn and stress relieved. G. Anchors: Except where shown or specified, select anchors of type, size, style, grade, and class required for secure installation of metal fabrications. For exterior use and where built into exterior walls, anchors shall be galvanized or of corrosive-resistant materials. 1. Expansion Anchors: Anchor bolt and sleeve assembly of material indicated below with capability to sustain, without failure, a load equal to six times the load imposed when installed in unit masonry and equal to four times the load imposed when installed in concrete, as determined by testing per ASTM E 488, conducted by a qualified independent test agency. a. Carbon Steel: Zinc-Plated; ASTM B 633, Class Fe/Zn 5. b. Stainless Steel: Bolts, Alloy Group 1 or 2; ASTM F593, Nuts; ASTM F 594. H. Rods, washers, and nuts. I. Fasteners: Except where shown or specified, select fasteners of type, size, style, grade, and class required for secure installation of metal fabrications. For exterior use and where built into exterior walls, fasteners shall be galvanized. 1. Standard Bolts and Nuts: ASTM A 307, Grade A, regular hexagon head. 2. Stainless Steel Fasteners: ASTM A 666; Type 302/304 for interior Work; Phillips flathead (countersunk) screws and bolts for exposed Work unless otherwise specified. 3. Machine Screws: ASME B18.6.3. 4. Lag Screws: ASME B18.2.1. 5. Plain Washers: Round, ASME B18.22.1. 6. Lock Washers: Helical, spring type, ASME B18.21.1.
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J. Shop Paint (General): Universal shop primer; fast-curing, lead- and chromate- free, universal modified-alkyd primer complying with MPI#79 and compatible with topcoat. 1. Use primer containing pigments that make it easily distinguishable from zinc- rich primer. K. Shop Paint for Galvanized Steel: Epoxy zinc-rich primer; complying with MPI#20 and compatible with topcoat. L. Galvanizing Repair Paint: High-zinc-dust-content paint complying with SSPC- Paint 20 and compatible with paints specified to be used over it.
2.2 MISCELLANEOUS FRAMING AND SUPPORTS
A. Fabricate metal framing and supports to support related items required by the Work. Fabricate of welded, or bolted construction unless otherwise indicated. Preassemble to largest extent possible, off site.
2.3 FABRICATION
A. Use materials of size and thickness indicated. If not indicated, use material of required size and thickness to produce adequate strength and durability for the intended use of the finished product. Furnish suitable, compatible anchors and fasteners to support assembly. B. Fabricate items to be exposed to view of material entirely free of surface blemish, including pitting, seam marks, roller marks, rolled trade names, and roughness. Remove surface blemishes by grinding or by welding and grinding prior to cleaning, treating, and finishing. Ease exposed edges to a radius of approximately 1/32 inch unless otherwise shown. C. Joints: Fabricate accurately for close fit. Weld exposed joints continuously unless otherwise indicated or approved. Dress exposed welds flush and smooth. D. Connections: Form exposed connections with flush, smooth, hairline joints. Use concealed fasteners wherever possible. Use Phillips flathead (countersunk) bolts or screws for exposed fasteners, unless otherwise shown or specified. 1. Furnish flat washer under connections requiring raised bolt heads. 2. Furnish lock washer under nuts when through-bolting occurs. E. Punch, reinforce, drill, and tap metal Work as required to receive hardware and other appurtenant items. F. Galvanizing: 1. Unless otherwise specified or noted, items indicated to be galvanized shall receive a zinc coating by the hot-dip process, after fabrication, complying with the following: a. ASTM A 153 for iron and steel hardware.
G. Shop Painting:
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1. Cleaning Steel: Thoroughly clean all steel surfaces. Remove oil, grease, and similar contaminants in accordance with SSPC SP-1 “Solvent Cleaning”. Remove loose mill scale, loose rust, weld slag and spatter, and other detrimental material in accordance with SSPC SP-2 “Hand Tool Cleaning”, SSPC SP-3 “Power Tool Cleaning”, or SSPC SP-7 “Brush-Off Blast Cleaning”. 2. Apply one coat of shop paint to all steel surfaces except as follows: a. Do not shop paint steel surfaces to be field welded. b. Apply 2 coats of shop paint, before assembly, to steel surfaces inaccessible after assembly or erection. Paint color to be determined by Architects. 3. Apply paint and compound on dry surfaces in accordance with the manufacturer’s printed instructions, and to the following minimum thickness per coat: a. Shop Paint (General): 4.0 mils wet film. b. Cold Galvanizing Compound: 2.0 mils dry film.
PART 3 EXECUTION
3.1 INSTALLATION
A. Fit and set fabricated metal Work accurately in location, alignment, and elevation. Securely fasten in place. Cut off exposed threaded portion of bolts flush with nut.
END OF SECTION 05 51 20
STRUCTURAL STEEL 05 51 20 - 4 FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK OF IT AND RECONSTRUCTION OF EXTERIOR RAMP
SECTION 05 52 20– STRUCTURAL GLASS RAILING SYSTEM
PART 1 GENERAL
1.01 WORK INCLUDED
A. Furnish and/or install glass supported railings, glass and components.
1.02 REFERENCE
A. American National Standards Institute (ANSI)
1. A17.1 Accessible and Usable Buildings and Facilities. 2. A58.l Minimum Design Loads in Buildings and Other Structures. 3. Z97.l Safety Performance Specifications and Methods of Test for Safety Glazing Materials Used in Buildings.
B. American Society for Testing and Materials (ASTM)
1. A666 - Standard Specification for Annealed or Cold-Worked Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar. 2. C1048 - Standard Specification for Heat-Treated Flat Glass - Hind HS, Kind FT Coated and Uncoated Glass. 3. E 894 - Standard Test Method for Anchorage of Permanent Metal Railing Systems and Rails for Buildings. 4. E 935 - Standard Test Methods for Performance of Permanent Metal Railing Systems and Rails for Buildings. 5. E 985 - Standard Specification for Permanent Metal Railing Systems and Rails for Buildings.
C. Americans with Disabilities Act Accessibility Guidelines (ADA).
D. National Association of Architectural Metal Manufacturers (NAAMM)
1. Metal Finishes Manual. 2. Pipe Railing Manual.
1.03 STRUCTURAL REQUIREMENTS
A. Handrail, wall rail and Guardrail assemblies and attachments shall withstand a minimum concentrated load of 200 pounds applied horizontally or vertically down at any point on the top rail. Infill area of guardrail system capable of withstanding a horizontal concentrated load of 200 pounds applied to one square foot at any point in
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the system. Load not to act concurrently with loads on top rail of system in determining stress on guardrail. Handrail assemblies and guards shall be designed to resist a load of 50 pounds per linear foot (pound per foot) (0.73 kN/m) applied in any direction at the top and to transfer this load through the supports to the structure.
1.04 SUBMITTALS
A. Manufacturer to submit approval drawings to include the following:
1. Section-thru details. 2. Mounting methods. 3. Typical Elevations. 4. Key plan layouts
C. Shop Drawings: Drawings showing fabrication and installation of handrails including plans, elevations, sections, details of components, anchor details, and attachment to adjoining units of work.
1.05 QUALITY ASSURANCE
A. Source Limitations: Obtain each type of railing through one source from a single manufacturer. Railings must match the existing system and be produced by the same manufacturer. Railings shall be Structural Glass, as manufactured by Architectural Railings & Grilles, Inc.; 2031 Carolina Place Dr., Fort Mill, SC 29708. ASD. Tel: (704)365-5152. Fax: (704) 373-2995. Email: [email protected]. Web: http://www.stainless-railing.com.
1.06 DELIVERY, STORAGE, AND HANDLING
A. Materials to be delivered to the job site in good condition and adequately protected against damage as handrails are a finished product.
B. Store on site in a location and manner to avoid damage. Stacking should be done in a manner that will prevent bending. Store material in a clean, dry location away from uncured concrete and masonry. Any protection on the railings during transportation should remain until installed.
C. Keep handling on site to a minimum. Exercise caution to avoid damage to finishes of material.
1.07 PROJECT CONDITIONS
A. Field Measurements: Where handrails and railings are indicated to fit to other construction, check actual dimensions of other construction by accurate field
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measurements before fabrication; show recorded measurements on final shop drawings.
B. Coordinate fabrication and delivery schedule of handrails with construction progress and sequence to avoid delay of railing installation.
PART 2 PRODUCTS
2.01 MANUFACTURERS
A. Acceptable Manufacturer: Architectural Railings & Grilles, Inc.; 2031 Carolina Place Drive, Fort Mill, SC 29708. ASD. Tel: (704)365-5152. Fax: (704) 373-2995. Email: [email protected]. Web: http://www.stainless-railing.com.
2.02 MATERIALS AND FINISHES
Materials
A. Base Shoe: 1. Stainless Steel 2. Overall Size: As detailed on drawings 3. Model #: As appropriate for glass thickness specified 4. Complete with required setting blocks, fillers, and gaskets
B. Glass: 1. 1/2” thick clear, tempered with beveled edges and all exposed edges ground smooth and polished
C. Glass Cap: 1. Metal rounded cap with a U-shaped receiving channel applied to top edge of glass railing 2. Include all gaskets, fasteners and other items required
D. Glass-Mounted Grip Rail: 1. Provide where indicated 2. 1 ½” O.D. Finishes A. Stainless Steel- Directional satin (#4)
2.03 FASTENERS A. All mechanical fasteners used shall be manufactured from stainless steel.
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2.04 FABRICATION A. All mitered and welded corners shall be ground smooth to match finish. B. Make exposed joints butt tight and flush. C. Interior sleeves shall be used for typical splices. D. Fasteners are allowed at splice connection. E. Verify dimensions on site prior to shop fabrication.
PART 3 EXECUTION
3.01 PREPARATION
A. Coordinate rail setting drawings, diagrams, templates, instructions, and directions for installation of anchorages. These include items such as sleeves, concrete inserts, anchor bolts, and miscellaneous items having integral anchors that are to be embedded in concrete and masonry construction. 1. Coordinate delivery of anchorages to project site. 2. Coordinate that blocking is in place for all mounting fasteners.
B. Clean debris and dust from surface area thoroughly prior to installation.
C. Prepare surfaces using the methods recommended by the manufacturer for achieving proper results given the substrate and project conditions.
3.02 INSTALLATION
A. Install in accordance with manufacturer's drawings and direction.
B. Fit exposed connections accurately together to form tight joints except as necessary for expansion.
C. Perform cutting, drilling, and fitting required for installation of handrails. Accurately set handrails in location, alignment, and elevation, measured from established lines and levels.
D. Set posts plumb within a tolerance of 1/8 inch (3 mm).
E. When fastening to in-place construction, provide anchorage devices and fittings to properly secure rail to in-place construction. Examples of such devices include threaded fittings (for concrete inserts), toggle bolts and through-bolts. Separate dissimilar materials with bushings, grommets or washers to prevent electrolytic corrosion.
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3.03 PROTECTION
A. Upon delivery railing may have protective wrapping. At completion of railing installation, immediately remove any protective wrapping and clean all work for inspection and approval.
B. After installation, General Contractor or Owner shall be responsible for protection of railings during the balance of construction.
C. When cleaning stainless steel surfaces use plain water containing a mild soap or detergent. No abrasive agents or harsh chemicals shall be used
END OF SECTION 05 52 00
STRUCTURAL GLASS RAILING SYSTEM 05 52 20 - 5 FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK OF IT AND RECONSTRUCTION OF EXTERIOR RAMP
SECTION 07 60 00 - FLASHING AND SHEET METAL
PART 1 - GENERAL
1.1 DESCRIPTION OF WORK
A. Provide all flashing, trim and sheet metal Work as indicated on the Drawings, as required for the completed Work, and as specified herein. The Work shall include, but shall not be limited to, the following:
1. Shop-Formed Copings 2. Flashing at expansion joints
1.2 REFERENCES
A. References and industry standards listed in this Section are applicable to the Work. Unless more restrictive criteria or differing requirements are explicitly stated in the Specifications, or mandated by governing codes or regulations, the recommendations, suggestions, and requirements described in the referenced standards shall be deemed mandatory and applicable to the Work.
B. American Society for Testing and Materials (ASTM).
C. Federal Specifications (FS).
1.3 SUBMITTALS
A. Shop Drawings
1. Show the manner of forming, jointing, and securing the metal flashings, trim, and other specified sheet metal items. Include expansion joint connections, and the method of forming waterproof connections to adjoining construction.
B. Product Data
1. Catalog sheets, specifications, installation instructions for each item specified except for shop or job formed items, solder and flux.
C. Samples
1. Materials for Flashings: One 6" sq piece, for each type material specified. 2. Anchors: Two, each type required. 3. Coping: Full section, 12" long.
FLASHING AND SHEET METAL 07 60 00 - 1 FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK OF IT AND RECONSTRUCTION OF EXTERIOR RAMP
D. Guarantee
E. Certificates of qualifications as specified under Article titled “Quality Assurance”.
F. Product Certificates
1. Certify that materials of this Section, such as flashing, sealants and fasteners, are compatible with all project materials that contact them.
1.4 QUALITY ASSURANCE
A. Except as otherwise shown or specified, comply with applicable recommendations, details, and standards of CDA, and SMACNA.
B. All metal Work shall be ink-stamped at intervals, identifying manufacturer, type metal, and gage or thickness.
C. Manufacturer's Recommendations
1. For factory fabricated items, follow the manufacturer's recommendations and installation instructions unless specifically shown or specified otherwise.
D. Materials containing asbestos are prohibited.
1.5 DELIVERY, STORAGE, AND HANDLING
A. Deliver, store, and handle products of this Section in such manner to protect them from damage.
1.6 GUARANTEE
A. The Contractor shall provide a two (2) year written guarantee, covering the flashing and sheet metal materials and workmanship. Should any defects occur during the stated period, they shall be corrected immediately, and all damage caused by such defects shall be corrected; all corrective Work shall be at the Contractor's expense.
PART 2 - PRODUCTS
2.1 MATERIALS FOR FLASHING FABRICATION
S. Stainless Steel Sheet
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1. Dead soft fully annealed stainless steel sheet, ASTM A240, Type 304 or Type 316, sulfur content .030% or less, 2D dull finish.
2.2 FASTENERS
A. Nails
"Stronghold" type large flat head roofing nail.
1. For Stainless Steel: Stainless steel.
B. Screws, Bolts, and other Fastening Accessories
1. For Stainless Steel: Stainless steel type 316.
C. Anchors
Provide one of the following types:
1. Hammer driven anchors, consisting of a stainless steel drive pin and a corrosion resistant metal expansion shield inserted thru a stainless steel disc with an EPDM sealing washer. 2. Self-tapping, corrosion resistant, concrete and masonry screw inserted thru a stainless steel disc with an EPDM sealing washer.
2.3 MISCELLANEOUS MATERIALS
A. Solder
1. Composition of block tin/pig lead of proportion recommended by the metal manufacturer, stamped either 50/50 or 60/40 "Warranted".
B. Flux
1. Paste or acid type as recommended by the metal manufacturer.
C. Type 3 Sealant (For concealed sealant joints of thru-wall cap receivers and other areas which require concealed sealant).
1. One part butyl rubber sealant; Pecora BC-158, PTI 707, or Woodmont chem- Calk 300.
D. Flashing Sealants and Adhesives
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Provide products recommended in writing by the flashing manufacturer, and compatible with all adjacent materials, including components of the air barrier system. Materials containing asbestos are prohibited. Mastics and other asphaltic materials shall not be used where sealant is specified or required.
1. Where low modulus silicone sealant is indicated provide ASTM C 920, single-component, neutral-curing silicone; Class 100/50, Grade NS, Use NT, Use O.
2.4 FABRICATION
A. General: Where practicable, form and fabricate sheet metal Work in the factory or shop. Produce bends and profiles accurately to the indicated shapes. Where not indicated or specified, follow the applicable requirements of the reference standards listed in PART 1. All corners to be factory prefabricated. Hem exposed sheet metal to eliminate all sharp edges and corners.
1. Thru-wall Coping Flashing, with and without receiver: Three way mortar bond flashing, with snap fit cap flashing for flashing with receiver. Allow for 1/2” extension of flashing beyond masonry face below stone prior to the bend for the drip to allow for raking and sealing of mortar joint below flashing for faces without receiver.
Acceptable manufacturers / products:
a. Keystone Flashing Co., 5119 North Second Street, Philadelphia, PA. "Keystone Thru-wall Flashing". b. Cheney Flashing Co., 623 Prospect St., Trenton, NJ. “Cheney 3-way Sawtooth Thru-Wall Flashing" c. LITSCO, Long Island Tinsmith Supply Corp., 76-11 88th St., Glendale, NY. Thru-wall coping flashing; with 3-way mortar bond d. B & B Sheet Metal, 25-40 50th Ave. Long Island City, NY. Thru- wall coping flashing; with 3-way mortar bond.
2. Materials
a. Stainless Steel: 26 ga (0.018").
B. Flashing at Cast Concrete Cap
1. Stainless Steel: 26 gauge.
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PART 3 - EXECUTION
3.1 EXAMINATION
A. Coordinate the work of this Section with other Work for the correct sequencing of items which make up the entire system of weatherproofing or waterproofing.
3.2 PREPARATION
A. Do not install the Work of this Section unless all necessary nailers, blocking and other supporting components have been provided.
3.3 INSTALLATION
A. Isolation
Separate dissimilar metals from each other with a dielectric coating to prevent galvanic action. Coating shall be bituminous or synthetic material as required for compatibility with adjacent materials.
B. Tinning and Soldering
1. Use soldering irons (heavy coppers) as Industry Standard. Torch soldering is not acceptable. 2. Clean, flux and tin all surfaces to be soldered. 3. Sweat solder thoroughly into seams, completely filling the seam for the full width. 4. Upon completion of soldering, remove all traces of flux residue, and if required, apply a neutralizing wash followed by a clean water wash.
C. Installing In-Wall and Thru-Wall Cap Flashing Receivers, In-Wall/Through-Wall Flashing and Thru-Wall Coping (with or without receiver) Flashing
1. Set the flashing so there is mortar above and below the built-in portion. Bonding ribs shall be completely filled with mortar. 2. Do not mallet, bend or deform the exposed portion. 3. Lap all end joints so they interlock at the first raised rib. Apply Type 3 sealant between the mating surfaces of the built-in portion of the flashing before interlocking end joints. 4. All corners shall be factory prefabricated: mitered and lapped approximately 1” at corner, and fully soldered or welded by the manufacturer. 5. Provide splice plate at all expansion joints, 12” wide, with 6” lap each side and v-notch in center of joint.
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D. Over Concrete Foundations: Lay flashing in a fresh bed of mortar above and below. When recommended by the flashing manufacturer the flashing may be laid on a coat of recommended sealant, and with a fresh bed of mortar above the flashing. At the intersection with column, bring flashing a minimum of 10" up the column and affix with mastic or other recommended material.
E. Flashing at Cast Concrete Caps
Provide 26 gauge stainless steel flashing as indicated on the Drawings, on bed of mortar, and cover with mortar. Install in one continuous length from side to side. Provide end dams at least 2” high, fully soldered or welded, forming a pan.
END OF SECTION 07 60 00
FLASHING AND SHEET METAL 07 60 00 - 6 FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK OF IT AND RECONSTRUCTION OF EXTERIOR RAMP
SECTION 26 05 29 - FASTENERS, ATTACHMENTS, AND SUPPORTING DEVICES
PART 1 GENERAL
1.01 SUBMITTALS
A. Shop Drawings: Show support details if different from methods specified or shown on the drawings.
B. Product Data: Catalog sheets, specifications and installation instructions.
PART 2 PRODUCTS
2.01 ANCHORING DEVICES
A. Sleeve Anchors: Molly/Emhart’s Parasleeve Series, Phillips’ Red Head AN, HN, FS Series, or Ramset’s Dynabolt Series.
B. Wedge Anchors: Hilti’s Kwik Bolt Series, Molly/Emhart’s Parabolt Series, Phillips’ Red Head WS, or Ramset’s Trubolt Series.
C. Self-Drilling Anchors: Phillips’ Red Head Series S or Ramset’s Ram Drill Series.
D. Non-Drilling Anchors: Hilti’s Drop-In Anchor Series, Phillips’ Red Head J Series, or Ramset’s Dynaset Series.
E. Stud Anchors: Phillips’ Red Head JS Series.
2.02 CAST-IN-PLACE CONCRETE INSERTS
A. Continuous Slotted Type Concrete Insert, Galvanized: 1. Load Rating 1300 lbs./ft.: Kindorf’s D-986. 2. Load Rating 2400 lbs./ft.: Kindorf’s D-980. 3. Load Rating 3000 lbs./ft.: Hohmann & Barnard Inc.’s Type CS-H. 4. Load Rating 4500 lbs./ft.: Hohmann & Barnard Inc.’s Type CS-HD.
B. Threaded Type Concrete Insert: Galvanized ferrous castings, internally threaded.
C. Wedge Type Concrete Insert: Galvanized box-type ferrous castings, designed to accept bolts having special wedge shaped heads.
2.03 MISCELLANEOUS FASTENERS
FASTNERS, ATTACHMENTS, AND SUPPORTING DEVICES 26 05 29 - 1 FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK OF IT AND RECONSTRUCTION OF EXTERIOR RAMP
A. Except where shown otherwise on the Drawings, furnish type, size, and grade required for proper installation of the Work, selected from the following: Furnish galvanized fasteners for exterior use, or for items anchored to exterior walls, except where stainless steel is indicated. 1. Standard Bolts and Nuts: ASTM A 307, Grade A, regular hexagon head. 2. Lag Screws: ASME B18.2.1. 3. Machine Bolts: ASME B18.5 or ASME B18.9, Type, Class, and Form as required. 4. Wood Screws: Flat head, ASME B18.6.1. 5. Plain Washers: Round, ASME B18.22.1. 6. Lock Washers: Helical, spring type, ASME B18.21.1. 7. Toggle Bolts: Spring Wing Type; Wing AISI 1010, Trunion Nut AISI1010 or Zamac Alloy, Bolt Carbon Steel ANSI B18.6.3.
B. Stainless Steel Fasteners: Type 302 for interior Work; Type 316 for exterior Work; Phillips head screws and bolts for exposed Work unless otherwise specified.
2.04 TPR (THE PEEL RIVET) FASTENERS
A. 1/4 inch diameter, threadless fasteners distributed by Subcon Products, 315 Fairfield Road, Fairfield, NJ 07004 (800) 634-5979.
2.05 POWDER DRIVEN FASTENER SYSTEMS
A. Olin Corp.’s Ramset Fastening Systems, or Phillips Drill Company Inc.’s Red Head Powder Actuated Systems.
2.06 MISCELLANEOUS FITTINGS
A. Side Beam Brackets: B-Line Systems Inc.’s B102, B103, B371-2, Kindorf’s B- 915, or Versabar Corp.’s VF-2305, VF-2507.
B. Supporting Fasteners (Metal Stud Construction): Metal stud supports, clips and accessories as produced by Caddy/Erico Products Inc.
PART 3 EXECUTION
3.01 INSTALLATION
A. Where specific fasteners are not specified or indicated for securing items to in- place construction, provide appropriate type, size, and number of fasteners for a secure, rigid installation.
FASTNERS, ATTACHMENTS, AND SUPPORTING DEVICES 26 05 29 - 2 FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK OF IT AND RECONSTRUCTION OF EXTERIOR RAMP
B. Install anchoring devices and other fasteners in accordance with manufacturer’s printed instructions.
C. Make attachments to structural steel wherever possible.
3.02 FASTENER SCHEDULE
A. Material: 1. Use cadmium or zinc coated anchors and fasteners in dry locations. 2. Use hot dipped galvanized or stainless steel anchors and fasteners in damp and wet locations. 3. For corrosive atmospheres or other extreme environmental conditions, use fasteners made of materials suitable for the conditions.
B. Types and Use: Unless otherwise specified or indicated use: 1. Cast-in-place concrete inserts in fresh concrete construction for direct pull-out loads such as shelf angles or fabricated metal items and supports attached to concrete slab ceilings. 2. Anchoring devices to fasten items to solid masonry and concrete when the anchor is not subjected to pull out loads, or vibration in shear loads. 3. Toggle bolts to fasten items to hollow masonry and stud partitions. 4. Metallic fasteners installed with electrically operated or powder driven tools for approved applications, except: a. Do not use powder driven drive pins or expansion nails. b. Do not attach powder driven or welded studs to structural steel less than 3/16 inch thick. c. Do not support a load, in excess of 250 lbs from any single welded or powder driven stud. d. Do not use powder driven fasteners in precast concrete.
3.03 ATTACHMENT SCHEDULE
A. General: Make attachments to structural steel or steel bar joists wherever possible. Provide intermediate structural steel members where required by support spacing. Select steel members for use as intermediate supports based on a minimum safety factor of 5. 1. Make attachments to steel bar joists at panel points of joists. 2. Do not drill holes in main structural steel members. 3. Attachment to Cast-In-Place Concrete: a. Fresh Concrete: Use cast-in-place concrete inserts. b. Existing Concrete: Use anchoring devices. 4. Attachment to Cored Precast Concrete Decks: a. New Construction: Use thru-bolts and fish plates before Construction Work Contractor has placed concrete fill over decks.
FASTNERS, ATTACHMENTS, AND SUPPORTING DEVICES 26 05 29 - 3 FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK OF IT AND RECONSTRUCTION OF EXTERIOR RAMP
b. Existing Construction: Toggle bolts may be installed in cells for a maximum load of 30 lbs. 5. Attachment to Hollow Block or Tile Filled Concrete Deck: a. New Construction: Use cast-in-place concrete inserts by having Construction Work Contractor omitting blocks and pouring solid blocks with insert where required.
3.04 CONDUIT SUPPORT SCHEDULE
A. Use pipe straps and specified method of attachment where conduit is installed proximate to surface of wood or masonry construction. 1. Use hangers secured to surface with specified method of attachment where conduit is suspended from the surface.
END OF SECTION 26 05 29
FASTNERS, ATTACHMENTS, AND SUPPORTING DEVICES 26 05 29 - 4
FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK AND RECONSTRUCTION OF EXTERIOR RAMP
SECTION 26 05 33 – RACEWAY AND BOXES FOR ELECTRICAL SYSTEMS
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including Federal Acquisition Regulations (FAR), General Services Administration Acquisition Manual, and other Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. This Section includes raceways, fittings, boxes, enclosures, and cabinets for electrical wiring.
1.3 DEFINITIONS
A. EMT: Electrical metallic tubing.
1.4 SUBMITTALS
A. Product Data: For surface raceways, wireways and fittings, floor boxes, hinged-cover enclosures, and cabinets.
B. Shop Drawings: For the following raceway components. Include plans, elevations, sections, details, and attachments to other work.
1. Custom enclosures and cabinets.
C. Coordination Drawings: Conduit routing plans, drawn to scale, on which the following items are shown and coordinated with each other, based on input from installers of the items involved:
1. Structural members in the paths of conduit groups with common supports. 2. HVAC and plumbing items and architectural features in the paths of conduit groups with common supports. RACEWAYS AND BOXES 26 05 33 - 1
FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK AND RECONSTRUCTION OF EXTERIOR RAMP
D. Qualification Data: For professional engineer and testing agency.
E. Source quality-control test reports.
1.5 QUALITY ASSURANCE
A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use.
B. Comply with NFPA 70.
PART 2 - PRODUCTS
2.1 METAL CONDUIT AND TUBING
A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:
B. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
1. AFC Cable Systems, Inc. 2. Alflex Inc. 3. Allied Tube & Conduit; a Tyco International Ltd. Co. 4. Anamet Electrical, Inc.; Anaconda Metal Hose. 5. Electri-Flex Co. 6. Manhattan/CDT/Cole-Flex. 7. Maverick Tube Corporation. 8. O-Z Gedney; a unit of General Signal. 9. Wheatland Tube Company.
C. Fittings for Conduit (Including all Types and Flexible and Liquidtight), EMT, and Cable: NEMA FB 1; listed for type and size raceway with which used, and for application and environment in which installed. 1. Fittings for EMT: set-screw or compression type.
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2.2 BOXES, ENCLOSURES, AND CABINETS
A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:
B. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
1. Cooper Crouse-Hinds; Div. of Cooper Industries, Inc. 2. EGS/Appleton Electric. 3. Erickson Electrical Equipment Company. 4. Hoffman. 5. Hubbell Incorporated; Killark Electric Manufacturing Co. Division. 6. O-Z/Gedney; a unit of General Signal. 7. RACO; a Hubbell Company. 8. Robroy Industries, Inc.; Enclosure Division. 9. Scott Fetzer Co.; Adalet Division. 10. Spring City Electrical Manufacturing Company. 11. Thomas & Betts Corporation. 12. Walker Systems, Inc.; Wiremold Company (The). 13. Woodhead, Daniel Company; Woodhead Industries, Inc. Subsidiary.
C. Small Sheet Metal Pull and Junction Boxes: NEMA OS 1.
D. Cabinets:
1. NEMA 250, Type 1, galvanized-steel box with removable interior panel and removable front, finished inside and out with manufacturer's standard enamel. 2. Hinged door in front cover with flush latch and concealed hinge. 3. Key latch to match panelboards.
PART 3 - EXECUTION
3.1 RACEWAY APPLICATION
A. Comply with the following indoor applications, unless otherwise indicated:
1. Boxes and Enclosures: NEMA 250, Type 1.
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B. Minimum Raceway Size: 4”.
C. Raceway Fittings: Compatible with raceways and suitable for use and location.
3.2 INSTALLATION
A. Comply with NECA 1 for installation requirements applicable to products specified in Part 2 except where requirements on Drawings or in this Article are stricter.
B. Keep raceways at least 6 inches (150 mm) away from parallel runs of flues and steam or hot- water pipes. Install horizontal raceway runs above water and steam piping.
3.3 FIRESTOPPING
A. Apply firestopping to electrical penetrations of fire-rated wall assemblies to restore original fire- resistance rating of assembly. Firestopping materials and installation requirements are specified in Division 07 Section "Penetration Firestopping."
3.4 PROTECTION
A. Provide final protection and maintain conditions that ensure coatings, finishes, and cabinets are without damage or deterioration at time of Substantial Completion.
1. Repair damage to galvanized finishes with zinc-rich paint recommended by manufacturer.
END OF SECTION 260533
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FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK AND RECONSTRUCTION OF EXTERIOR RAMP
SECTION 26 05 43 – UNDERGROUND DUCTS AND RACEWAYS FOR ELECTRICAL SYSTEMS
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including Federal Acquisition Regulations(FAR), General Services Administration Acquisition Manual, and other Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. Section Includes: 1. Conduit, ducts, and duct accessories for direct-buried and concrete- encased duct banks, and in single duct runs. 2. Handholes and pull boxes.
1.3 DEFINITIONS
A. RGS: Rigid steel galvanized.
1.4 SUBMITTALS
A. Product Data: For the following: 1. Duct-bank material, including separators and miscellaneous components. 2. Ducts and conduit and their accessories, including elbows, end bells, bends, fittings and solvent cement. 3. Accessories for manholes, handholes, pull boxes. 4. Warning tape.
B. Shop Drawings for Factory-Fabricated Handholes and Pull Boxes Other Than Precast Concrete: Include dimensioned plans, sections, and elevations, and fabrication and installation details, including the following:
1. Duct entry provisions, including locations and duct sizes. 2. Cover design. 3. Grounding details. UNDERGROUND DUCTS AND RACEWAYS 26 05 43 - 1
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4. Dimensioned locations of cable rack inserts, and pulling-in and lifting irons.
C. Duct-Bank Coordination Drawings: Show duct profiles and coordination with other utilities and underground structures.
1. Include plans and sections, drawn to scale, and show bends and locations of expansion fittings. 2. Drawings shall be signed and sealed by a qualified professional engineer.
D. Product Certificates: For concrete and steel used in precast concrete, pull boxes and handholes, comply with ASTM C 858.
E. Qualification Data: For qualified professional engineer and testing agency.
F. Source quality-control reports.
G. Field quality-control reports.
1.5 QUALITY ASSURANCE
A. Comply with IEEE C2.
B. Comply with NFPA 70.
1.6 DELIVERY, STORAGE, AND HANDLING
A. Deliver ducts to Project site with ends capped. Store nonmetallic ducts with supports to prevent bending, warping, and deforming.
B. Store precast concrete and other factory-fabricated underground structures at Project site as recommended by manufacturer to prevent physical damage. Arrange so identification markings are visible.
C. Lift and support precast concrete units only at designated lifting or supporting points.
1.7 COORDINATION
A. Coordinate layout and installation of ducts, manholes, handholes, and pull boxes with final arrangement of other utilities, site grading, and surface features as determined in the field.
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B. Coordinate elevations of ducts and duct-bank entrances into manholes, handholes, and pull boxes with final locations and profiles of ducts and duct banks as determined by coordination with other utilities, underground obstructions, and surface features. Revise locations and elevations from those indicated as required to suit field conditions and to ensure that duct runs drain to manholes and handholes, and as approved by Architect.
1.8 EXTRA MATERIALS
A. Furnish extra materials that match products installed and that are packaged with protective covering for storage and identified with labels describing contents.
B. Furnish cable-support stanchions, arms, and associated fasteners.
PART 2 - PRODUCTS
2.1 CONDUIT
A. Rigid Steel Conduit: Galvanized. Comply with ANSI C80.1.
2.2 PRECAST CONCRETE HANDHOLES AND PULL BOXES
A. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:
1. Christy Concrete Products. 2. Cretex Concrete Products West, Inc.; Riverton Division. 3. Elmhurst-Chicago Stone Co. 4. Oldcastle Precast Group. 5. Oldcastle Precast Inc.; Utility Vault Division. 6. Utility Concrete Products, LLC. 7. Wausau Tile Inc.
B. Comply with ASTM C 858 for design and manufacturing processes.
C. Ferrous metal hardware shall be hot-dip galvanized in accordance with ASTM A153 (ASTM A153M) and ASTM A123 (ASTM A123M).
D. Description: Factory-fabricated, reinforced-concrete, monolithically poured walls and bottom unless open-bottom enclosures are indicated. Frame and cover shall form top of enclosure and shall have load rating consistent with that of handhole or pull box. UNDERGROUND DUCTS AND RACEWAYS 26 05 43 - 3
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1. Frame and Cover: Weatherproof cast-iron frame, with cast-iron cover with recessed cover hook eyes and tamper-resistant, captive, cover-securing stainless-steel bolts as approved by local Authority Having Jurisdiction. a. Cover Handle: Recessed. 2. Cover Legend: Molded lettering, "COMMUNICATIONS". 3. Configuration: Units shall be designed for flush burial and have integral closed bottom unless otherwise indicated.
4. Windows: Precast openings in walls, arranged to match dimensions and elevations of approaching ducts and duct banks plus an additional 12 inches (300 mm) vertically and horizontally to accommodate alignment variations.
a. Windows shall be located no less than 6 inches (150 mm) from interior surfaces of walls, floors, or frames and covers of handholes, but close enough to corners to facilitate racking of cables on walls. b. Window opening shall have cast-in-place, welded wire fabric reinforcement for field cutting and bending to tie in to concrete envelopes of duct banks. c. Window openings shall be framed with at least two additional No. 4 steel reinforcing bars in concrete around each opening.
5. Duct Entrances in Handhole Walls: Cast end-bell or duct-terminating fitting in wall for each entering duct.
a. Type and size shall match fittings to duct or conduit to be terminated. b. Fittings shall align with elevations of approaching ducts and be located near interior corners of handholes to facilitate racking of cable.
6. Handholes 48 inches wide by 48 inches long (300 mm wide by 600 mm long) and larger shall have inserts for cable racks and pulling-in irons installed before concrete is poured.
2.3 HANDHOLES AND PULL BOXES OTHER THAN PRECAST CONCRETE
A. Description: Comply with SCTE 77.
1. Color: Gray. 2. Configuration: Units shall be designed for flush burial and have integral closed bottom unless otherwise indicated as approved by local Authority Having Jurisdiction. 3. Cover: Weatherproof, secured by tamper-resistant locking devices and having structural load rating consistent with enclosure as approved by local Authority UNDERGROUND DUCTS AND RACEWAYS 26 05 43 - 4
FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK AND RECONSTRUCTION OF EXTERIOR RAMP
Having Jurisdiction. 4. Cover Legend: Molded lettering,
a. "COMMUNICATIONS." 5. Duct Entrance Provisions: Duct-terminating fittings shall mate with entering ducts for secure, fixed installation in enclosure wall. 6. Handholes 48 inches wide by 48 inches long (300 mm wide by 600 mm long) and larger shall have factory-installed inserts for cable racks and pulling-in irons.
2.4 SOURCE QUALITY CONTROL
A. Test and inspect structures according to ASTM C 1037.
PART 3 - EXECUTION
3.1 CORROSION PROTECTION
A. Aluminum shall not be installed in contact with earth or concrete.
3.2 UNDERGROUND DUCT APPLICATION
A. Underground ducts crossing paved paths, walks and driveways, roadways: Type RNC, NEMA EPC-40-PVC, encased in reinforced concrete.
3.3 UNDERGROUND ENCLOSURE APPLICTION
A. Handholes and pull boxes for 600 V and less: 1. Units in roadways and other deliberate traffic paths: precast concrete. AASHTO H-20 structural load rating.
3.4 EARTHWORK
A. Excavation and Backfill: Comply with Division 31 Section "Earth Moving," but do not use heavy- duty, hydraulic-operated, compaction equipment.
B. Restore surface features at areas disturbed by excavation and reestablish original grades unless otherwise indicated. Replace removed sod immediately after backfilling is completed.
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C. Restore areas disturbed by trenching, storing of dirt, cable laying, and other work. Restore vegetation and include necessary topsoiling, fertilizing, liming, seeding, sodding, sprigging, and mulching. Comply with Division 32 Sections "Turf and Grasses" and "Plants."
D. Cut and patch existing pavement in the path of underground ducts and utility structures according to Division 01 Section "Cutting and Patching."
3.5 DUCT INSTALLATION
A. Slope: Pitch ducts a minimum slope of 1:300 down toward manholes and handholes and away from buildings and equipment. Slope ducts from a high point in runs between two manholes to drain in both directions.
B. Curves and Bends: Use 5-degree angle couplings for small changes in direction. Use manufactured long sweep bends with a minimum radius of 48 inches (1220 mm), both horizontally and vertically, at other locations unless otherwise indicated.
C. Joints: Use solvent-cemented joints in ducts and fittings and make watertight according to manufacturer's written instructions. Stagger couplings so those of adjacent ducts do not lie in same plane.
D. Duct Entrances to Concrete and Polymer Concrete Handholes: Use end bells, spaced approximately 10 inches (250 mm) o.c. for 5-inch (125-mm) ducts, and vary proportionately for other duct sizes.
1. Begin change from regular spacing to end-bell spacing 10 ft. (3 m) from the end bell without reducing duct line slope and without forming a trap in the line. 2. Grout end bells into structure walls from both sides to provide watertight entrances.
E. Building Wall Penetrations: Rigid Steel Conduit.
F. Sealing: Provide temporary closure at terminations of ducts that have cables pulled. Seal spare ducts at terminations. Use sealing compound and plugs to withstand at least 15-psig (1.03-MPa) hydrostatic pressure.
G. Pulling Cord: Install 100-lbf- (445-N-) test nylon cord in ducts, including spares.
H. Concrete-Encased Ducts: Support ducts on duct separators.
1. Separator Installation: Space separators close enough to prevent sagging and UNDERGROUND DUCTS AND RACEWAYS 26 05 43 - 6
FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK AND RECONSTRUCTION OF EXTERIOR RAMP
deforming of ducts, with not less than 5 spacers per 20 ft. (6 m) of duct. Secure separators to earth and to ducts to prevent floating during concreting. Stagger separators approximately 6 inches (150 mm) between tiers. Tie entire assembly together using fabric straps; do not use tie wires or reinforcing steel that may form conductive or magnetic loops around ducts or duct groups. 2. Concreting Sequence: Pour each run of envelope between manholes or other terminations in one continuous operation.
a. Start at one end and finish at the other, allowing for expansion and contraction of ducts as their temperature changes during and after the pour. Use expansion fittings installed according to manufacturer's written recommendations, or use other specific measures to prevent expansion- contraction damage.
b. If more than one pour is necessary, terminate each pour in a vertical plane and install 3/4-inch (19-mm) reinforcing rod dowels extending 18 inches (450 mm) into concrete on both sides of joint near corners of envelope.
3. Pouring Concrete: Spade concrete carefully during pours to prevent voids under and between conduits and at exterior surface of envelope. Do not allow a heavy mass of concrete to fall directly onto ducts. Use a plank to direct concrete down sides of bank assembly to trench bottom. Allow concrete to flow to center of bank and rise up in middle, uniformly filling all open spaces. Do not use power- driven agitating equipment unless specifically designed for duct-bank application. 4. Reinforcement: Reinforce concrete-encased duct banks where they cross disturbed earth and where indicated. Arrange reinforcing rods and ties without forming conductive or magnetic loops around ducts or duct groups. 5. Forms: Use walls of trench to form side walls of duct bank where soil is self- supporting and concrete envelope can be poured without soil inclusions; otherwise, use forms. 6. Minimum Space between Ducts: 3 inches (75 mm) between ducts and exterior envelope wall, 2 inches (50 mm) between ducts for like services, and 4 inches (100 mm) between power and signal ducts. 7. Depth: Install top of duct bank at least 24 inches (600 mm) below finished grade in areas not subject to deliberate traffic, and at least 30 inches (750 mm) below finished grade in deliberate traffic paths for vehicles unless otherwise indicated. 8. Stub-Ups: Use manufactured rigid steel conduit elbows for stub-ups at poles and equipment and at building entrances through the floor.
a. Couple steel conduits to ducts with adapters designed for this purpose, and encase coupling with 3 inches (75 mm) of concrete. b. Stub-Ups to Equipment: For equipment mounted on outdoor concrete UNDERGROUND DUCTS AND RACEWAYS 26 05 43 - 7
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bases, extend steel conduit horizontally a minimum of 60 inches (1500 mm) from edge of base. Install insulated grounding bushings on terminations at equipment.
9. Warning Tape: Bury warning tape approximately 12 inches (300 mm) above all concrete- encased ducts and duct banks. Align tape parallel to and within 3 inches (75 mm) of the centerline of duct bank. Provide an additional warning tape for each 12-inch (300-mm) increment of duct-bank width over a nominal 18 inches (450 mm). Space additional tapes 12 inches (300 mm) apart, horizontally.
3.6 INSTALLATION OF CONCRETE HANDHOLES, AND PULL BOXES
A. Precast Concrete Handhole Installation:
1. Comply with ASTM C 891 unless otherwise indicated. 2. Install units level and plumb and with orientation and depth coordinated with connecting ducts to minimize bends and deflections required for proper entrances. 3. Unless otherwise indicated, support units on a level bed of crushed stone or gravel, graded from 1-inch (25-mm) sieve to No. 4 (4.75-mm) sieve and compacted to same density as adjacent undisturbed earth.
B. Elevations: 1. Handhole Covers: In paved areas and trafficways, set surface flush with finished grade.
C. Drainage: Install drains in bottom of handholes..
D. Handhole Access: Circular opening in handhole roof; sized to match cover size. 1. Install chimney, constructed of precast concrete collars and rings to support frame and cover and to connect cover with manhole roof opening. Provide moisture-tight masonry joints and waterproof grouting for cast-iron frame to chimney.
E. Waterproofing: Apply waterproofing to exterior surfaces of handholes after concrete has cured at least three days. Waterproofing materials and installation are specified in Division 07. After ducts have been connected and grouted, and before backfilling, waterproof joints and connections and touch up abrasions and scars. Waterproof exterior of manhole chimneys after mortar has cured at least three days.
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3.7 INSTALLATION OF HANDHOLES AND PULL BOXES OTHER THAN PRECAST CONCRETE
A. Install handholes and pull boxes level and plumb and with orientation and depth coordinated with connecting ducts to minimize bends and deflections required for proper entrances. Use pull box extension if required to match depths of ducts, and seal joint between box and extension as recommended by the manufacturer.
B. Unless otherwise indicated, support units on a level 6-inch- (15-cm-) thick bed of crushed stone or gravel, graded from 1/2-inch (12.7-mm) sieve to No. 4 (4.75-mm) sieve and compacted to same density as adjacent undisturbed earth.
C. Elevation: Set so cover surface will be flush with finished grade.
D. Install handholes and pull boxes with bottom below the frost line.
E. Install removable hardware, including pulling eyes, cable stanchions, cable arms, and insulators, as required for installation and support of cables and conductors and as indicated. Retain arm lengths to be long enough to provide spare space for future cables, but short enough to preserve adequate working clearances in the enclosure.
F. Field-cut openings for ducts and conduits according to enclosure manufacturer's written instructions. Cut wall of enclosure with a tool designed for material to be cut. Size holes for terminating fittings to be used, and seal around penetrations after fittings are installed.
3.8 GROUNDING
A. Ground underground ducts and utility structures according to Division 26 Section "Grounding and Bonding for Electrical Systems."
3.9 FIELD QUALITY CONTROL
A. Perform the following tests and inspections:
1. Demonstrate capability and compliance with requirements on completion of installation of underground ducts and utility structures. 2. Pull aluminum or wood test mandrel through duct to prove joint integrity and test for out- of-round duct. Provide mandrel equal to 80 percent fill of duct. If obstructions are indicated, remove obstructions and retest. UNDERGROUND DUCTS AND RACEWAYS 26 05 43 - 9
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3. Test handhole grounding to ensure electrical continuity of grounding and bonding connections. Measure and report ground resistance as specified in Division 26 Section "Grounding and Bonding for Electrical Systems."
B. Correct deficiencies and retest as specified above to demonstrate compliance.
C. Prepare test and inspection reports.
3.10 CLEANING
A. Pull leather-washer-type duct cleaner, with graduated washer sizes, through full length of ducts. Follow with rubber duct swab for final cleaning and to assist in spreading lubricant throughout ducts.
B. Clean internal surfaces of manholes, including sump. Remove foreign material.
END OF SECTION 260543
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SECTION 26 05 44 – SLEEVES AND SLEEVE SEALS FOR ELECTRICAL RACEWAYS AND CABLING
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including Federal Acquisition Regulations (FAR), General Services Administration Acquisition Manual, and other Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. Section Includes:
1. Sleeves for raceway and cable penetration of non-fire-rated construction walls and floors. 2. Sleeve-seal systems. 3. Sleeve-seal fittings. 4. Grout. 5. Silicone sealants.
B. Related Requirements:
1. Division 07 Section "Penetration Firestopping" for penetration firestopping installed in fire- resistance-rated walls, horizontal assemblies, and smoke barriers, with and without penetrating items.
1.3 ACTION SUBMITTALS
A. Product Data: For each type of product.
B. LEED Submittals:
1. Product Data for Credit EQ 4.1: For sealants, documentation including printed statement of VOC content. 2. Laboratory Test Reports for Credit EQ 4: For sealants, documentation indicating that products comply with the testing and product requirements of the California
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Department of Health Services' "Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers.
PART 2 - PRODUCTS
2.1 SLEEVES
A. Wall Sleeves:
1. Steel Pipe Sleeves: ASTM A 53/A 53M, Type E, Grade B, Schedule 40, zinc coated, plain ends. 2. Cast-Iron Pipe Sleeves: Cast or fabricated "wall pipe," equivalent to ductile-iron pressure pipe, with plain ends and integral waterstop unless otherwise indicated.
B. Sleeves for Conduits Penetrating Non-Fire-Rated Gypsum Board Assemblies: Galvanized-steel sheet; 0.0239-inch (0.6-mm) minimum thickness; round tube closed with welded longitudinal joint, with tabs for screw-fastening the sleeve to the board.
2.2 SLEEVE-SEAL SYSTEMS
A. Description: Modular sealing device, designed for field assembly, to fill annular space between sleeve and raceway or cable.
1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:
a. Advance Products & Systems, Inc. b. CALPICO, Inc. c. Metraflex Company (The). d. Pipeline Seal and Insulator, Inc. e. Proco Products, Inc.
2. Sealing Elements: EPDM rubber interlocking links shaped to fit surface of pipe. Include type and number required for pipe material and size of pipe. 3. Pressure Plates: Carbon steel. 4. Connecting Bolts and Nuts: Carbon steel, with corrosion-resistant coating, of length required to secure pressure plates to sealing elements.
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2.3 SLEEVE-SEAL FITTINGS
A. Description: Manufactured plastic, sleeve-type, waterstop assembly made for embedding in concrete slab or wall. Unit shall have plastic or rubber waterstop collar with center opening to match piping OD.
1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:
a. Presealed Systems.
2.4 GROUT
A. Description: Nonshrink; recommended for interior and exterior sealing openings in non-fire- rated walls or floors.
B. Standard: ASTM C 1107/C 1107M, Grade B, post-hardening and volume-adjusting, dry, hydraulic-cement grout.
C. Design Mix: 5000-psi (34.5-MPa), 28-day compressive strength.
D. Packaging: Premixed and factory packaged.
2.5 SILICONE SEALANTS
A. Silicone Sealants: Single-component, silicone-based, neutral-curing elastomeric sealants of grade indicated below.
1. Grade: Pourable (self-leveling) formulation for openings in floors and other horizontal surfaces that are not fire rated. 2. Sealant shall comply with the testing and product requirements of the California Department of Health Services' "Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers."
B. Silicone Foams: Multicomponent, silicone-based liquid elastomers that, when mixed, expand and cure in place to produce a flexible, nonshrinking foam.
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PART 3 - EXECUTION
3.1 SLEEVE INSTALLATION FOR NON-FIRE-RATED ELECTRICAL PENETRATIONS
A. Comply with NECA 1.
B. Comply with NEMA VE 2 for cable tray and cable penetrations.
C. Sleeves for Conduits Penetrating Above-Grade Non-Fire-Rated Concrete and Masonry-Unit Floors and Walls:
1. Interior Penetrations of Non-Fire-Rated Walls and Floors:
a. Seal annular space between sleeve and raceway or cable, using joint sealant appropriate for size, depth, and location of joint. Comply with requirements in Division 07 Section "Joint Sealants." b. Seal space outside of sleeves with mortar or grout. Pack sealing material solidly between sleeve and wall so no voids remain. Tool exposed surfaces smooth; protect material while curing.
2. Use pipe sleeves unless penetration arrangement requires rectangular sleeved opening. 3. Size pipe sleeves to provide 1/4-inch (6.4-mm) annular clear space between sleeve and raceway or cable unless sleeve seal is to be installed or unless seismic criteria require different clearance.
D. Sleeves for Conduits Penetrating Non-Fire-Rated Gypsum Board Assemblies:
1. Use circular metal sleeves. 2. Seal space outside of sleeves with approved joint compound for gypsum board assemblies.
E. Underground, Exterior-Wall and Floor Penetrations: Install cast-iron pipe sleeves. Size sleeves to allow for 1-inch (25-mm) annular clear space between raceway or cable and sleeve for installing sleeve-seal system.
3.2 SLEEVE-SEAL-SYSTEM INSTALLATION
A. Install sleeve-seal systems in sleeves in exterior concrete walls and slabs-on-grade at
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raceway entries into building.
B. Install type and number of sealing elements recommended by manufacturer for raceway or cable material and size. Position raceway or cable in center of sleeve. Assemble mechanical sleeve seals and install in annular space between raceway or cable and sleeve. Tighten bolts against pressure plates that cause sealing elements to expand and make watertight seal.
3.3 SLEEVE-SEAL-FITTING INSTALLATION
A. Install sleeve-seal fittings in new walls and slabs as they are constructed.
B. Assemble fitting components of length to be flush with both surfaces of concrete slabs and walls. Position waterstop flange to be centered in concrete slab or wall.
C. Secure nailing flanges to concrete forms.
D. Using grout, seal the space around outside of sleeve-seal fittings.
END OF SECTION 260544
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SECTION 31 00 00 - EARTHWORK
PART 1 GENERAL
1.01 RELATED WORK SPECIFIED ELSEWHERE
A. Underground Utility Locator Service: 02 33 13
B. Cast-In-Place Concrete: Section 03 30 00.
1.02 DEFINITIONS
A. The following terms shall have the meanings ascribed to them in this Article, wherever they appear in this Section. 1. Earth Excavation: The removal of all surface and subsurface material not classified as rock (as defined below). 2. Subgrade Surface: Surface upon which subbase or topsoil is placed. 3. Subbase: Select granular material or subbase course Type 2 which is placed immediately beneath pavement or concrete slabs. 4. Foundation Bearing Grade: Grade/elevation at which the bottom-of- footings are constructed. 5. Maximum Density: The dry unit weight in pounds per cubic foot of the soil at “Optimum Moisture Content” when determined by ASTM D 698 (Standard Proctor), or ASTM D 1557 (Modified Proctor). 6. Structures: Buildings, footings, foundations, retaining walls, slabs, tanks, mechanical and electrical appurtenances, or other man-made stationary features constructed above or below the ground surface. 7. Landscaped Areas: Areas not covered by structures, walks, roads, paving, or parking. 8. Unauthorized Excavation: The removal of material below required elevation indicated on the Drawings or beyond lateral dimensions indicated or specified without specific written direction by the Director’s Representative. 9. Contract Limit Line (Shown on Drawings): Limits of grading, excavations and filling required for the work of this contract.
1.03 SUBMITTALS
A. Product Data: 1. Filter Fabric: Manufacturer’s catalog sheets, specifications, and installation instructions.
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B. Samples: Submit samples as follows. Take the samples in the presence of the Landscape Architect (from here on referred to as Architect), and submit to him or her the laboratory test results for gradation, proctors and soundness tests, when required. These tests shall be performed in accordance with ASTM standards, shall be performed and signed by a certified soils laboratory, and shall be submitted as part of the original submittal. At a minimum the samples taken shall be of the following quantities: 1. Select Granular Material: 50 - 60 lb. (Two Samples). 2. Subbase Course Type 2: 50 - 60 lb. (Two Samples). 3. Selected Fill: 40 - 50 lb. 4. Cushion Material: 30 lb. 5. Crushed Stone: 30 lb 6. Pea Gravel: 40 – 50 lb.
C. Quality Control Submittals: 1. Excavation Procedure: Submit a lay out drawing or detailed outline of intended excavation procedure for the Facility Director and the Architect’s information. This submittal will not relieve the Contractor of responsibility for the successful performance of intended excavation methods. 2. Subbase Materials: Name and location of source and the DOT Source Number. If the material is not being taken from an approved DOT Source the results of the gradation and soundness tests performed by an ASTM certified soils laboratory will be required. 3. Other Aggregates: Name and location of source.
1.04 PROJECT CONDITIONS
A. Protect existing trees and plants during performance of the Work unless otherwise indicated. Box trees and plants indicated to remain within the grading limit line with temporary fencing or solidly constructed wood barricades as required. Protect root systems from smothering. Do not store excavated material, or allow vehicular traffic or parking within the branch drip line. Restrict foot traffic to prevent excessive compaction of soil over root systems.
B. Cold Weather Requirements: 1. Excavation: When freezing temperatures are anticipated, do not excavate to final required elevations for concrete work unless concrete can be placed immediately. 2. Backfilling: If backfill is being placed during freezing temperatures the backfilling operations shall be monitored by the Architect and the following procedures shall be followed:
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a. Frozen ground shall be removed in its entirety from beneath and five feet beyond the area of fill placement. b. The fill material placed shall consist of Selected Fill and shall be free of all frozen chunks that exceed four inches in size. The material transported to the project site shall only consist of material excavated from below the frost depth. c. At the end of the work day, the area of fill placement shall be covered with insulated blankets, or left unprotected. Other means of protection (hay, wood chips, etc.) may also be used for protection provided it is approved by the Architect. d. Following work day, remove the insulated blankets and/or strip the area of all frozen material as specified previously. e. Upon establishing the subgrade elevations, protect the grades with insulated blankets or place additional material that will adequately insulate the exposed earth surface from frost. This additional fill or protective material shall be stripped just prior to pouring concrete.
PART 2 PRODUCTS
2.01 MATERIALS
A. Select Granular Material: Stockpiled, sound, durable, sand, gravel, stone, or blends of these materials, free from organic and other deleterious materials. Comply with the gradation and material requirements specified below:
Sieve Percent Passing Sieve Size Size opening (mm) 2 inch 50.8 100 1/4 inch 6.35 30-65 No. 40 0.425 5-40 No. 200 0.075 0-10
1. Magnesium Sulfate Soundness Test: 20 percent maximum loss by weight after four test cycles. 2. Plasticity Index: The plasticity index of the material passing the No. 40 mesh sieve shall not exceed 5.0. 3. Elongated Particles: Not more than 30 percent, by weight, of the particles retained on a 1/2 inch sieve shall consist of flat or elongated particles. A flat or elongated particle is defined as one which has its greatest dimension more than three times its least dimension.
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B. Subbase Course Type 2: Stockpiled, crushed ledge rock or approved blast furnace slag. Comply with the gradation and material requirements specified below:
Sieve Percent Passing Sieve Size Size opening (mm) 2 inch 50.8 100 1/4 inch 6.35 25-60 No. 40 0.425 5-40 No. 200 0.075 0-10
1. Magnesium Sulfate Soundness Test: 20 percent maximum loss by weight after four test cycles. 2. Plasticity Index: The plasticity index of the material passing the No. 40 mesh sieve shall not exceed 5.0. 3. Elongated Particles: Not more than 30 percent, by weight, of the particles retained on a 1/2 inch sieve shall consist of flat or elongated particles. A flat or elongated particle is defined as one which has its greatest dimension more than three times its least dimension.
C. Selected Clean Fill: Sound, durable, sand, gravel, stone, or blends of these materials, free from organic and other deleterious materials. Comply with the gradation requirements specified below:
Sieve Percent Passing Sieve Size Size opening (mm) 4 inch 101.6 100 No. 40 0.425 0-70 No. 200 0.075 0-15
D. Suitable Material (Fill and Backfill for Landscaped Areas): Material consisting of mineral soil (inorganic), blasted or broken rock and similar materials of natural or man-made origin, including mixtures thereof. Maximum particle size shall not exceed 2/3 of the specified layer thickness prior to compaction. NOTE: Material containing cinders, industrial waste, sludge, building rubble, land fill, muck, and peat shall be considered unsuitable for fill and backfill, except topsoil and organic silt may be used as suitable material in landscaped areas provided it is placed in the top layer of the subgrade surface.
E. Cushion Material: Shall consist of clean, hard, durable, uncoated particles, free from lumps of clay and all deleterious substances and shall meet the following gradation requirements:
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Sieve Size Percent Passing Sieve Size Size opening (mm) 1/4 inch 6.35 100 No. 60 0.25 0-35 No. 100 0.15 0-10
F. Pea Gravel: Comply with DOT Article 703-02 for screened gravel.
Sieve Percent Passing Sieve Size Size opening (mm) 1/2 inch 12.7 100 1/4 inch 6.35 90-100 1/8 inch 3.17 0-15 No. 200 Sieve 0.075 0-1
2.02 GEOTECHNICAL FABRICS
A. Filter Fabric (GeoTextile) 1. Drainage and Erosion Control: Amoco 1199 & 2019, Maccaferri MacTex MX140 & MX155, Mirafi 140N & 160N, Fiberweave 403 & 404 or equivalent. 2. Separation for foundation drains, underdrains, undercuts: Amoco 2002 & 2004, Contech Construction Products Inc. C-180, Synthetic Industries Geotex 250ST & 315ST, Mirafi Geolon HP570 & HP1500 or equivalent. 3. Separation/Stabilization beneath pavements: Amoco 4551, Bonded Fibers Products PN080, Maccaferri Gabions MacTex MX275 & 340, Mirafi 160N & 180N or equivalent.
PART 3 EXECUTION
3.01 UNDERGROUND UTILITIES
A. Locate existing underground utilities prior to commencing excavation work. Determine exact utility locations by hand excavated test pits. Support and protect utilities to remain in place.
B. Do not interrupt existing utilities that are in service until temporary or new utilities are installed and operational.
C. Utilities to remain in service: Shall not be re-routed. Notify Architect of any conflict for a clarification drawing.
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D. Utilities abandoned beneath and five feet laterally beyond the structure’s proposed footprint shall be removed in their entirety. Excavations required for their removal shall be backfilled and compacted as specified herein.
3.02 EXCAVATION
A. Excavate earth as required for the Work.
B. Install and maintain all erosion and sedimentation controls during all earthwork operations as specified on the Contract Drawings or as directed by local officials.
C. Maintain sides and slopes of excavations in a safe condition until completion of backfilling. Comply with Code of Federal Regulations Title 29 - Labor, Part 1926 (OSHA). 1. Trenches: Deposit excavated material on one side of trench only. Trim banks of excavated material to prevent cave-ins and prevent material from falling or sliding into trench. Keep a clear footway between excavated material and trench edge. Maintain areas to allow free drainage of surface water.
D. Stockpile excavated materials classified as suitable material where directed, until required for fill. Place, grade, and shape stockpiles for proper drainage as approved by the Architect. Install filter fabric and/or hay bales at base of stockpiles to prevent erosion.
E. Excavation for Structures: Conform to elevations, lines, and limits indicated. Excavate to a vertical tolerance of plus or minus 1 inch. Extend excavation a sufficient lateral distance to provide clearance to execute the Work.
F. Footings and Foundations: The foundation bearing grade shall be established just prior to constructing the concrete foundations when concrete is to bear on undisturbed soil.
G. Concrete Slabs, Floors and Bases: Excavate to the following depths below bottom of concrete for addition of select granular material: 1. Exterior Slabs and Steps: 12 inches unless otherwise indicated.
H. Conduit, Cable, Tubing and Piping (other than Bell and Spigot): Provide sufficient trench width for installation and to accommodate special backfill when specified.
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I. Sidewalk: Excavate to subgrade surface elevation.
J. Notify the Architect upon completion of excavation operations. Do not proceed with the Work until the excavation is inspected and approved. Inspection of the excavation by the Architect will be made on 3 working days notice.
3.03 DEWATERING
A. Prevent surface and subsurface water from flowing into excavations and from flooding the site and surrounding area.
B. Do not allow water to accumulate in excavations. Remove water from all excavations immediately to prevent softening of foundation bottoms, undercutting footings, and soil changes detrimental to the stability of subgrades and foundations. Furnish and maintain pumps, sumps, suction and discharge piping systems, and other system components necessary to convey the water away from the Site.
C. Convey water removed from excavations, and rain water, to collecting or run-off area. Cut and maintain temporary drainage ditches and provide other necessary diversions outside excavation limits for each structure.
D. Provide temporary controls to restrict the velocity of discharged water as necessary to prevent erosion and siltation of receiving areas.
3.04 PLACING FILTER FABRIC
A. Place and overlap filter fabric in accordance with the manufacturer’s installation instructions, unless otherwise shown.
B. Cover tears and other damaged areas with additional filter fabric layer extending 3 feet beyond the damage.
C. Do not permit traffic or construction equipment directly on filter fabric.
D. Backfill over filter fabric within two weeks after placement. Backfill in accordance with the fabric manufacturer’s instructions and in a manner to prevent damage to the fabric.
3.05 PLACING FILL AND BACKFILL
A. Surface Preparation of Fill Areas: Remove all concrete pavement in its entirety from areas requiring the placement of fill. Prior to placement of fill, smooth out
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and compact areas where wheel rutting has occurred due to stripping or earthwork operations. B. Excavations: Backfill as promptly as practicable, but only after approval by the Architect. Do not backfill with excavated material unless it meets the requirements of this Section.
C. Place backfill and fill materials in layers not more than 8 inches thick in loose depth unless otherwise specified. Before compaction, moisten or aerate each layer as necessary to facilitate compaction to the required density. Do not place backfill or fill material on surfaces that are muddy, frozen, or covered with ice. 1. Place fill and backfill against foundation walls, and in confined areas (such as trenches) not easily accessible by larger compaction equipment, in maximum six inch thick (loose depth) layers.
D. Prevent wedging action of backfill against structures by placing backfill uniformly around structure to approximately same elevation in each layer.
E. Under Exterior Concrete Slabs and Steps: 1. Up to Subgrade Surface Elevation: Place selected fill when fill or backfill is required. 2. Subbase Material: Place 12 inches of select granular material over subgrade surface.
F. Under Pavements and Walks: 1. Up to Subgrade Surface Elevation: Place selected fill when fill or backfill is required. 2. Subbase Material: Place as indicated.
G. Rigid Non-Metallic Conduit: Except where concrete encasement is required, place cushion material a minimum of four inches deep under conduit, four inches on both sides, and 12 inches over top of conduit. Complete balance of backfill as specified.
3.06 COMPACTION
A. Compact each layer of fill and backfill for the following area classifications to the percentage of maximum density specified below and at a moisture content suitable to obtain the required densities, but at not less than 3 percent drier or more than 2 percent wetter than the optimum content as determined by ASTM D 698 (Standard Proctor) or 1557 (Modified Proctor). 1. Concrete Slabs and Steps: 95 percent. 2. Landscaped Areas: 90 percent. 3. Pavements and Walks: 95 percent.
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B. If a compacted layer fails to meet the specified percentage of maximum density, the layer shall be re-compacted and retested. If compaction cannot be achieved the material/layer shall be removed and replaced. No additional material may be placed over a compacted layer until the specified density is achieved.
3.07 RESTORATION
A. Restore pavements, walks, curbs, and other exterior surfaces damaged during performance of the Work to match the appearance and performance of existing corresponding surfaces as closely as practicable.
3.08 DISPOSAL OF EXCESS AND UNSUITABLE MATERIALS
A. Remove from the property and dispose of excess and unsuitable materials, including materials resulting from removal of existing improvements.
B. Transport excess and unsuitable materials, including materials resulting from removal of existing improvements, to staging areas on the property designated by the Facilities Department, and dispose of such materials as directed.
3.09 FIELD QUALITY CONTROL
A. Compaction Testing: Notify the Architect at least 3 working days in advance of all phases of filling and backfilling operations. Compaction testing will be performed by an independent testing laboratory, hired by the owner, to ascertain the compacted density of the fill and backfill materials. Compaction testing will be performed on certain layers of the fill and backfill as determined by the Architect. If a compacted layer fails to meet the specified percentage of maximum density, the layer shall be re-compacted and will be retested. No additional material may be placed over a compacted layer until the specified density is achieved.
END OF SECTION 31 00 00
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SECTION 31 25 13 - EROSION AND SEDIMENT CONTROL
PART 1 GENERAL
1.01 RELATED WORK SPECIFIED ELSEWHERE
A. Earthwork: Section 31 00 00
1.02 REFERENCES
A. Erosion and Sediment Control Guidelines: Conform to the latest edition of “NEW YORK STANDARDS and SPECIFICATIONS for EROSION and SEDIMENT CONTROL” by NYS Department of Environmental Conservation DOW (i.e., Bluebook). Refer to these guidelines for construction and maintenance of all items (Temporary and Permanent Structural, Vegetative and Biotechnical) included in the Storm Water Pollution and Prevention Plan (SWPPP).
1.03 RESPONSIBILITY
A. Install and maintain temporary storm water and diversion control items before starting any grading or excavation and maintain compliance of all Storm Water Pollution Plan/SPDES regulations. Provide any temporary sediment and erosion control measures that may be required within limits of the work, including any staging areas, throughout construction, and as directed by the Architect.
B. In the event of conflict between these specifications and the regulation of other Federal, State, or local jurisdictions, the more restrictive regulations shall apply.
C. The Contractor shall adhere with all applicable NYSDEC regulatory requirements.
1.04 DESCRIPTION
A. The Work shall consist of furnishing, installing, inspecting, maintaining, and removing soil and erosion control measures as ordered by the Architect during the life of the contract to provide erosion and sediment control.
B. All weekly, monthly and quarterly inspections will be completed by the Architect. Comply with and correct all deficiencies found as a result of these inspections.
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1.05 DEFINITIONS – TEMPORARY STRUCTURAL MEASURES
A. Stabilized Construction Entrance: A stabilized pad of aggregate underlain with geo-textile where traffic enters a construction site to reduce or eliminate tracking of sediment.
B. Dust Control: Prevent surface and air movement of dust from disturbed soil surfaces.
C. Portable Sediment Tank: A compartmented tank to which sediment laden water is pumped to retain sediment before pumping the water to adjoining drainage ways.
D. Sediment Traps: A control device formed by excavation to retain sediment at a storm inlet or other points of collection.
E. Storm Drain Inlet Protection: A semi-permeable barrier installed around storm inlets to prevent sediment from entering a storm drainage system.
F. Temporary Swale: A temporary man-made drainage swale of sand bags with erosion fencing.
1.06 DEFINITIONS – VEGETATIVE MATERIALS MEASURES
A. Mulches: Hay, straw, wood cellulose, fiber mats and other materials approved by the Architect.
B. Protecting Vegetation: Protecting trees, shrubs, ground cover and other vegetation from damage.
C. Temporary Swale: A temporary man-made drainage swale.
PART 2 PRODUCTS
NONE
PART 3 EXECUTION
3.01 WORK AREAS
A. The Architect has the authority to limit the surface area of erodible earth exposed by earthwork operations and to direct the Contractor to provide immediate temporary or permanent erosion measures to minimize damage to property and contamination. Under no circumstances will the area of erodible earth material
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exposed at one time exceed 2,000 sq. ft. The Architect may increase or decrease this area of erodible earth material exposed at one time as determined by his analysis of project, weather and other conditions.
B. Schedule the work so as to minimize the time that excavated areas will be exposed to erosive conditions. Provide temporary structural measures immediately to prevent any soil erosion.
C. Coordinate the use of permanent controls or finish materials shown with the temporary erosion measures.
D. All erosion and sediment control devices must be maintained in working order until the site is stabilized. All preventative and remedial maintenance work, including clean out, repair, replacement, re-grading, re-seeding, or re-mulching, must be performed immediately.
END OF SECTION 31 25 13
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SECTION 31 40 00 – SHORING AND UNDERPINNING
PART 1 – GENERAL
1.1 SUMMARY
A. Section Includes
1. Temporary excavation support and protection systems for utilities and structures.
1.2 QUALITY ASSURANCE
A. Requirements of Regulatory Agencies:
1. Shoring materials and installation work shall conform to Federal, State and local laws, rules, regulations, requirements, precautions, orders and decrees.
2. Provide material for sheet piling, sheeting, bracing and shoring, and drive or set in place in accordance with Federal, State and local laws for excavations and construction; and as required to protect the workers and the public, or to maintain the trench widths specified, regardless of whether it is or is not considered necessary by the Contractor.
3. The Contractor shall submit to the Authority, if requested, design plans, details, and computations for supporting of the excavations signed and sealed by a Registered Professional Engineer licensed in the state of New York for review and approval prior to the start of construction on as required.
1.3 PROJECT/SITE CONDITIONS
A. Responsibility for Condition of Excavation:
1. The failure or refusal of the Architect to suggest the use of bracing or sheeting, or a better quality, grade, or section, or larger sizes of steel or timber, or to suggest sheeting, bracing, struts, or shoring to be left in place; shall in no way or extent relieve the Contractor of his responsibility concerning the condition of excavation or of his obligations under the Contract, nor impose liability on the Engineer; nor shall a delay, whether caused by an action or want of action on the part of the Contractor, resulting in the keeping of an excavation open longer than would
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otherwise have been necessary, relieve the Contractor from the necessity of properly and adequately protecting the excavation from caving or slipping, nor from his obligations under the Contract relating to injury to persons or property, nor entitle him to claims for extra compensation.
PART 2 – PRODUCTS
2.1 MATERIALS
A. Wood Materials: Use wood sheeting, sheet piling, bracing and shoring which is in good serviceable condition and timbers of sound condition, free from large or loose knots and of proper dimensions.
B. Steel Materials: Steel sheet piling and bracing of equal strength may be substituted for wood.
PART 3 – EXECUTION
3.1 INSTALLATION
A. Using skilled labor, drive or set sheeting, sheet piling, braces or shores in place and arrange such that they may be withdrawn as the excavations are backfilled, without injury to piping and structures, and without injury to or settlement of adjacent structures and pavements.
B. When tight plank or steel sheeting is required, drive such sheeting in advance of the excavation. Make joints of tongue and groove, or interlocking type, as watertight as possible.
C. Where the maximum width of trench may be exceeded under these Specifications and where permitted by Federal and State regulations, the sides of the trench may be sloped in lieu of providing sheeting and bracing. If the sloping of trench banks is permitted, the slope shall begin at a point of 12" above the top of the pipe. Install sheeting to support the vertical part of the excavation as required by Federal and State regulations.
D. Remove sheeting, bracing and shores as trenches and other excavations are being backfilled, except where and to such an extent as the Engineer shall require, in writing, that same be left in place or where he shall permit the Contractor to leave same in place at the Contractor's own request and cost.
1. In withdrawing sheeting and sheet piling, exercise care to ensure that all voids or holes left by planks as they are withdrawn are backfilled and SHORING AND UNDERPINNING 31 40 00 - 2 FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK OF IT AND RECONSTRUCTION OF EXTERIOR RAMP
thoroughly rammed with thin rammers provided especially for that purpose.
2. Exercise care to carry backfill up evenly on all sides of items installed in excavations.
E. Cut off sheeting or sheet piling left in place whenever and at such points as the Engineer shall require and remove from the work the portion cut off. No additional compensation will be allowed for such cutting and removal.
END OF SECTION 31 40 00
SHORING AND UNDERPINNING 31 40 00 - 3 FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK OF IT AND RECONSTRUCTION OF EXTERIOR RAMP
SECTION 32 13 01 - CONCRETE WALKS
PART 1 GENERAL
1.01 RELATED WORK SPECIFIED ELSEWHERE
A. Earthwork: Section 31 00 00
B. Concrete Paving Joint Sealants: Section 32 13 73
1.02 REFERENCES
A. Comply with American Concrete Institute, ACI 301-05, for the Work of this Section unless otherwise indicated on the drawings or specified.
1.03 SUBMITTALS
A. Product Data: 1. Concrete Design Mix: Submit proposed concrete design mix together with name and location of batching plant at least 28 days prior to the start of concrete work. 2. Portland Cement: Brand and Manufacturer’s name. 3. Air-entraining Admixture: Brand and manufacturer’s name. 4. Water-reducing or High Range Water-reducing Admixture: Brand and manufacturer’s name. 5. Curing and Anti-Spalling Compound: Manufacturer’s specifications and application instructions. 6. Fibrous Concrete Reinforcement: Manufacturer’s specifications, and batching and mixing instructions for fibrous concrete reinforcement. B. Samples: 1. Fabric Reinforcement: Two Feet Square. 2. Fibrous Concrete Reinforcement: One pound. 3. Bar Supports: Full size
C. Performance Criteria Submittals: 1. Certifications: a. Submit written certification from the product manufacturers to verify the product information supplied. b. Submit written certification to verify the amount of recycled material, by weight included in the concrete design mix. 2. Product Data Sheets: Submit written certification that the materials meet the Performance criteria, as stated in the QUALITY ASSURANCE Article below. Stamp each Product Data Sheet and initial or sign the stamp to that
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the submitted products are the products installed in the project. 3. Material Safety Data Sheets, for all applicable products. If the material data sheets do not contain the VOC content in grams per liter, then other manufacturer certification of VOC levels must be provided.
1.04 QUALITY ASSURANCE
A. Concrete batching plants shall be currently approved as concrete suppliers by the New York State Department of Transportation.
B. Fibrous Concrete Reinforcement: 1. Certificates: Affidavit by the concrete supplier certifying that approved fibrous concrete reinforcement in the required amount per cubic yard was added to and properly mixed into each batch of concrete discharged at the site.
C. Performance Criteria: The following criteria are required for the products included in this section: 1. Cast-in-place Concrete shall contain post-industrial and/or post-consumer recycled content as follows: a. Fly Ash: Concrete shall incorporate fly ash as a replacement for 15 percent (by weight) of the Portland cement. All design mixes are subject to review and approval by the Director. b. GGBF (Ground Granulated Blast Furnace) Slag: Concrete shall incorporate GGBF slag as a replacement for at least 20 percent (by weight) of the Portland cement. All design mixes are subject to review and approval by the Director. c. Certification of recycled content shall be in accordance with the SUBMITTALS Article above. d. Recycled Steel: Reinforcing bar, steel wire, welded wire fabric, and miscellaneous steel accessories shall contain a minimum of 35 percent (combined) post-industrial/post-consumer recycled content (the percentage of recycled content is based on the weight of the component materials). 2. Concrete manufactured within 500 miles (by air) of the project site shall be documented in accordance with the SUBMITTALS Article above. 3. Steel reinforcement manufactured within 500 miles (by air) of the project site shall be documented in accordance with SUBMITTALS Article above.
1.05 DELIVERY
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A. Batch Ticket Information: Indicate on the delivery ticket the type, brand, and amount of fibrous concrete reinforcement material added to each batch of concrete.
PART 2 PRODUCTS
2.01 MATERIALS
A. Cast-In-Place Concrete: Normal weight, air entrained concrete with a minimum compressive strength of 4,000 psi at the end of 28 days. 1. Design Air Content: ASTM C 260, and on the New York State Department of Transportation’s current “Approved List”; 6 percent by volume plus or minus 1.5 percent. 2. Cement: ASTM C 150 Type I or II Portland cement. Minimum 6.5 bags or 611 pounds per cubic yard. 3. Water: Potable. 4. Slump: Between 2 and 4 inches; except when a water-reducing admixture is used maximum slump shall be 6 inches and when a high range water reducing admixture is used maximum slump shall be 8 inches. 5. Water-reducing Admixture: ASTM C 494 Type A and on the New York State Department of Transportation’s current “Approved List”. 6. High Range Water-reducing Admixture: ASTM C 494 Type F and on the New York State Department of Transportation’s current “Approved List”.
B. Chemical Curing and Anti-Spalling Compound: ASTM C-309, Type 1D or 2, Class B, with minimum 18 percent total solids content. No thinning of material allowed. The volatile organic compound (VOC) content of concrete curing compounds shall meet requirements of the EPA national AIM VOC regulations. 1. Lin-Seal White by W.R. Meadows, Inc., PO Box 338, Hampshire, IL 60140-0038, (800) 342-5976, www.wrmeadows.com. 2. KUREZ W VOX or KUREZ VOX WHITE PIGMENTED by The Euclid Chemical Company, 19218 Redwood Road, Cleveland, OH 44110, (800) 321-7628, www.euclidchemical.com. 3. Thinfilm 422 by Kaufman Products, Inc. 3811 Curtis Avenue, Baltimore, MD 21226, (800) 637-6372, www.kaufmanproducts.net.
C. Fabric Reinforcement: Flat sheets of 6 x 6 - W2.9 x W2.9 ASTM A 185, welded wire fabric.
D. Fibrous Concrete Reinforcement: Collated Fibrillated type; ASTM C 1116 and ASTM C 1018, 100 percent virgin, homopolymer polypropylene fibers specifically manufactured for use as concrete reinforcement. Fiber Length: 3/4 to 1 1/2 inch. Specific Gravity: 0.9.
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1. Grace Fibers by W.R. Grace & Company – Conn., Construction Products, 62 Whittemore Ave., Cambridge, MA 02140-1692, (877) 423-6491 www.na.graceconstruction.com. 2. Fibermesh by Propex Concrete Systems Corp., 6025 Lee Highway, Suite 425, PO Box 22788, Chattanooga, TN 37422, (800) 621-1273, www.fibermesh.com. 3. FORTA Econo-Mono by Forta Corporation, 100 Forta Dr., Grove City, PA 16127-6399, (800) 245-0306, www.fortacorp.com. 4. ProMesh Fibrillated Fibers by Pro Mesh Fiber Systems, Division of Canada Cordage Inc., 50 Ottawa St. S., Kitchener, Ontario, Canada N2G 3S7, (877) 224-2673, www.promesh.com.
2.02 JOINTS AND EMBEDDED ITEMS
A. Obtain bond at construction joints by the use of bonding agent (adhesive) or the use of cement grout.
PART 3 EXECUTION
3.01 PREPARATION
A. Set forms true to line and grade and anchor rigidly in position.
B. Space expansion joints equally at not more than 5’-0” on center unless otherwise indicated.
C. Place joint filler at expansion joints and where new concrete abuts existing concrete paving and fixed structures or appurtenances. Protect the top edge of the joint filler during concrete placement with a temporary cap and remove after concrete has been placed.
3.02 PLACEMENT OF FABRIC REINFORCEMENT
A. Prior to placement, clean reinforcement thoroughly of mill and rust scale and of coatings that could destroy or reduce bond.
B. Install fabric reinforcement midway between the top and bottom of the concrete slab. Use one of the following methods to ensure the final location of reinforcement at the mid-slab location: 1. Prior to placing concrete, place fabric reinforcement midway between top and bottom of the slab and secure against displacement with the use of chair carriers, or other approved materials. OR
CONCRETE WALKS 32 13 01 - 4 FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK OF IT AND RECONSTRUCTION OF EXTERIOR RAMP
2. Pour one half the final thickness of concrete. Place fabric reinforcement in the wet concrete. Immediately place the remaining concrete to achieve the required final slab thickness.
C. Lap edges and ends of adjoining sheets of fabric reinforcement at least half the mesh width. Offset end laps in adjacent sheets to prevent continuous joints at ends. Interrupt reinforcement at expansion joints, stopping 2 inches from edges.
D. Unless other reinforcing is shown on the Drawings, reinforce the following items of concrete as indicated below: 1. Concrete Slabs on Grade: 6 x 6 - W2.9 x W2.9 welded wire fabric.
3.03 PLACEMENT OF FIBER REINFORCEMENT
A. Add required amount of fibrous concrete reinforcement to the concrete and mix in accordance with fiber manufacturer’s batching and mixing instructions.
B. Fibers shall be uniformly dispersed in the concrete, and concrete shall be free of fiber balls or lumps when discharged at the Site.
3.04 PLACING CONCRETE
A. Consolidate concrete by spading, rodding, forking, or using an approved vibrator eliminating all air pockets, stone pockets, and honeycombing. Work and float concrete surface so as to produce a uniform texture.
B. Locate construction joints (if any) at expansion joints.
3.05 FINISHING AND CURING
A. Wait until bleeding is stopped before final finishing operations.
B. Keep surface damp but not wet between initial strike off and final finish. 1. Utilize a fog spray, evaporative inhibitor, or midrange water reducer that is compatible with supplementary cementing materials to help control the amount of surface drying of the fresh concrete.
C. Use minimal working of the surface during finishing.
D. Utilize a magnesium or wood float.
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E. Avoid the use of steel finishing trowels and utilize a concrete finishing machine when possible.
F. Finish edges of walk and expansion and control joints with a 1/4 inch radius edging tool.
G. Provide broom finish for walk surfaces.
H. Apply curing and anti-spalling compound in accordance with the manufacturer’s printed instructions.
I. Apply curing immediately after final finish.
J. Saw control joints one inch deep after the concrete has set. Complete sawcuts within 18 hours after slab is placed. Space control joints equally between expansion joints at approximately 5’-0” on center, except where a different spacing is shown on the drawings.
END OF SECTION 32 13 01
CONCRETE WALKS 32 13 01 - 6 FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK OF IT AND RECONSTRUCTION OF EXTERIOR RAMP
SECTION 32 13 73 - CONCRETE PAVING JOINT SEALANTS
PART 1 GENERAL
1.01 RELATED WORK SPECIFIED ELSEWHERE
A. Concrete Paving: Section 32 13 00
B. Mortar Set Pre-Cast Concrete Paving Units: Section 32 14 16
1.02 SUBMITTALS
A. Product Data: Catalog sheets, specifications, and installation instructions for each product specified except miscellaneous materials.
1.03 QUALITY ASSURANCE
A. Container Labels: Include manufacturer’s name, trade name of product, kind of material, federal specification number (if applicable), expiration date (if applicable) and packaging date or batch number.
1.04 PROJECT CONDITIONS
A. Environmental Conditions: 1. Temperature: Unless otherwise approved or recommended in writing by the sealant manufacturer, do not install sealants at temperatures below 40 degrees F or above 85 degrees F. 2. Humidity and Moisture: Do not install the Work under this Section under conditions that are detrimental to the application, curing and performance of the specified materials.
B. Protection: 1. Protect all surfaces adjacent to sealants with non-staining removable tape or other approved covering to prevent soiling or staining.
PART 2 PRODUCTS
2.01 SEALANTS
A. Type 1B Sealant: 1. For Horizontal Joints: One-part, self-leveling silicone or polyurethane sealant for traffic bearing construction; Bostik Chem-Calk 955-SL,
CONCRETE PAVING JOINT SEALANTS 32 13 73 - 1 FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK OF IT AND RECONSTRUCTION OF EXTERIOR RAMP
Tremco Vulkem 45, Pecora Urexpan NR-201, Pecora 300-SL, Pecora 310- SL, Sika Sikaflex-1CSL, Dow Corning CCS. 2. For Vertical Joints: One-part, non-sag silicone or polyurethane sealant; Tremco Vulkem 116, Pecora Dynatrol I, Sika Sikaflex Textured Sealant, Dow Corning CCS or CWS, Pecora 301-NS, Pecora 311-NS.
2.02 JOINT FILLERS
A. Cork Joint Filler: Resilient, non-extruding type premoulded cork units; ASTM D 1752 Type II.
B. Closed Cell Polyurethane Joint Filler: Resilient, compressible, semi-rigid; W.R. Meadows’ Ceramar or A.C. Horn’s Closed Cell Plastic Foam Filler, Code 5401.
C. Self-Expanding Cork Joint Filler: Resilient, non-extruding type premoulded cork units; ASTM D 1752, Type III.
2.03 MISCELLANEOUS MATERIALS
A. Joint Primer/Sealer/Conditioner: As recommended by the sealant manufacturer for the particular joint surface materials and conditions.
B. Backer Rod: Compressible rod stock or expanded, extruded polyethylene.
C. Bond Breaker Tape: Polyethylene or other plastic tape as recommended by the sealant manufacturer; non-bonding to sealant.
D. Cleaning Solvents: Oil free solvents as recommended by the sealant manufacturer. Do not use re-claimed solvents.
E. Masking Tape: Removable paper or fiber tape, self-adhesive, non-staining.
2.04 COLOR OF MATERIALS
A. For exposed materials furnish color as indicated, or if not indicated, as selected by the Architect from the manufacturer’s standard colors. For concealed materials, provide the natural color which has the best overall performance characteristics.
PART 3 EXECUTION
3.01 PREPARATION
CONCRETE PAVING JOINT SEALANTS 32 13 73 - 2 FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK OF IT AND RECONSTRUCTION OF EXTERIOR RAMP
A. Clean joint surfaces immediately before installation of sealant and other materials specified in this Section. 1. Remove all loose materials, dirt, dust, rust, oils and other foreign matter that will impair the performance of materials installed under this Section. When necessary or when directed, wire brush, grind, or acid etch to thoroughly clean joint surfaces.
3.02 JOINT FILLER INSTALLATION
A. Set joint fillers at proper depth and position as required for installation of bond breakers, backer rods and sealants. Do not leave voids or gaps between the ends of joint filler units. 1. Smooth Edged Joints: For joints between two concrete slabs or where new concrete abuts smooth edged materials use either filler as specified. 2. Irregular Edged Joints: For joints where new concrete abuts granite curbs or other irregular edges use closed cell polyurethane joint filler.
3.03 BACKER ROD AND BOND BREAKER TAPE INSTALLATION
A. Install bond breaker tape in relaxed condition as it comes off the roll. Do not stretch the tape. Lap individual lengths.
B. Provide backer rod of sufficient size to fill the joint width at all points in a compressed state. Compress backer rod at the widest part of the joint by a minimum of 25 percent. Do not cut or puncture the surface skin of the rod.
3.04 SEALANT INSTALLATION
A. Except as shown or specified otherwise, install sealants in accordance with the manufacturer’s printed instructions.
B. Prime joint surfaces which are to receive Type 1A Sealant. Do not allow the primer to spill or migrate onto adjoining surfaces.
C. Apply sealant with ratchet hand gun or other approved mechanical gun. Where gun application is impractical, apply sealant by knife or by pouring as applicable.
D. Finishing: Tool all vertical, non-sag sealants so as to compress the sealant and eliminate air voids. Provide a neat smoothly finished joint with a slightly concave surface unless otherwise indicated or recommended by the manufacturer. 1. Use tool wetting agents as recommended by the sealant manufacturer.
3.05 CLEANING
CONCRETE PAVING JOINT SEALANTS 32 13 73 - 3 FIT STUDENT HOUSING CORPORATION PROJECT # C1331 ALUMNI HALL CONCRETE ENCASED CONDUIT BANK OF IT AND RECONSTRUCTION OF EXTERIOR RAMP
A. Immediately remove misapplied sealant and drippings from metal surfaces with solvents and wiping cloths. On other materials, remove misapplied sealant and droppings by methods and materials recommended in writing by the manufacturer of the sealant material.
B. After sealants are applied and before skin begins to form on sealant, remove all masking and other protection and clean up any remaining defacement caused by the Work.
END OF SECTION 32 13 73
CONCRETE PAVING JOINT SEALANTS 32 13 73 - 4