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Cast-In-Place Concrete 033000 - 1 JAMESTOWN CSD Lincoln Elementary Alterations 73654.01 CAST-IN-PLACE CONCRETE 033000 - 1 SECTION 033000 - CAST-IN-PLACE CONCRETE PART_1_-_GENERAL 1.1 RELATED DOCUMENTS: A. Drawings and general provisions of Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this section. 1.2 SUMMARY: A. Extent of cast-in-place concrete work is indicated on drawings and in provisions of this section. B. Concrete work includes, but is not limited to: 1. Footings & foundation walls. 2. Concrete slabs on ground as indicated on drawings. 3. Curing compound. 4. Slots, inserts, anchors, ties. 5. Preformed expansion joint fillers. 6. Set built-in items furnished by others. 7. Other concrete work indicated on drawings and/or specified therein (except as otherwise specified). 1.3 RELATED WORK: A. Excavating,_Filling_and_Grading as specified in Division 31. B. Concrete_Reinforcement as specified in another Division 3 section. C. Unit_Masonry as specified in Division 4. D. Structural_Steel as specified in Division 5. 1.4 QUALITY ASSURANCE: A. Use latest edition, including all addenda, revisions and supplements for all specifications, standards, and codes, referred to herein. B. Applicable Standards: 1. American Society for Testing Materials (ASTM): C-31 Making and Curing Concrete Test Specimens In the Field. C-33 Specification for Concrete Aggregates. C-39 Test for Compressive Strength of Cylinder Concrete Specimens. C-42 Obtaining and Testing Drilled Cores and Sawed Beams of Concrete. C-94 Specifications for Ready-Mixed Concrete. C-138 Test for Unit Weight, Yield and Air Content (Gravimetric) of Concrete. C-143 Test for Slump of Portland Cement Concrete. Clark Patterson Lee 03/27/2014 JAMESTOWN CSD Lincoln Elementary Alterations 73654.01 CAST-IN-PLACE CONCRETE 033000 - 2 C-150 Specification for Portland Cement. C-171 Specification for Vapor Retarder Sheet Materials. C-172 Sampling Fresh Concrete. C-173 Test for Air Content of Freshly Mixed Concrete by the Volumetric Method. C-192 Making and Curing Concrete Test Specimens in the Laboratory. C-231 Air Content of Freshly Mixed Concrete by the Pressure Method. C-260 Specification for Air-Entraining Admixtures for Concrete. C-309 Specification for Liquid Membrane Forming Compounds for Curing Concrete. D-1751 Specification for Preformed Expansion Joint Fillers for Concrete Paving and Structural Construction (Non-Extruded and Resilient Bituminous Types). D-1752 Specification for Preformed Sponge Rubber and Cork Expansion Joint Fillers for Concrete Paving and Structural Construction. 2. American Concrete Institute (ACI): ACI 211-1 Recommended Practice for Selecting Proportions for Normal Heavyweight Concrete and Mass Concrete. ACI 212-2R Admixtures for Concrete. ACI 214 Recommended Practice for Evaluation of Strength Test Results of Concrete. ACI 221-R Guide for Use of Normal Weight Aggregates in Concrete. ACI 301 Specifications for Structural Concrete for Buildings. ACI 302-1R Guide for Concrete Floor and Slab Construction. ACI 304 Guide for Measuring, Mixing, Transporting and Placing Concrete. ACI 305-R Hot Weather Concreting. ACI 306-R Cold Weather Concreting. ACI 308 Standard Practice for Curing Concrete. ACI 311-4R Guide for Concrete Inspection. ACI 318 Building Code Requirements for Reinforced Concrete. ACI 347 Recommended Practice for Concrete Formwork. Clark Patterson Lee 03/27/2014 JAMESTOWN CSD Lincoln Elementary Alterations 73654.01 CAST-IN-PLACE CONCRETE 033000 - 3 SP-66 ACI Detailing Manual. C. Contractor Qualifications: Minimum of two years experience on comparable concrete projects. D. Requirements of Regulatory Agencies: Perform work in accordance with requirements of local, state and other applicable codes. E. Tolerances: 1. Floor slabs: a. Scheduled to receive resilient flooring: Variations not to exceed 1/8 inch in 10 feet from required plane. b. Where exposed concrete is scheduled: Variations not to exceed 1/4 inch in 10 feet from required plane. 2. Variation of building lines: 1/8 inch in 10 feet. 3. Variation in cross sectional dimensions: Minus 1/8 inch, plus 1/4 inch in 10 feet. 4. Deflection of form facing material between supports: Not over 0.0025 X span. 5. If any concrete varies beyond tolerances specified, bring concrete within specified tolerances by method approved by Architect at no extra cost. F. Slab Curling: 1. Contractor shall properly cure and take precautions as necessary to prevent curling of concrete slabs. 2. If curling occurs, the Contractor shall make corrections by method approved by Architect at no extra cost. G. Tests: 1. Concrete testing service: Employ, at Contractor's expense, an independent testing laboratory acceptable to Architect to perform material evaluation tests and to design concrete mixes. 2. Materials and installed work may require testing and retesting, as directed by Architect, at anytime during progress of work. Allow free access to material stockpiles and facilities. Tests, not specifically indicated to be done at Owner's expense, including retesting of rejected materials and installed work, shall be done at Contractor's expense. H. Evaluation and Acceptance: 1. Evaluate each concrete mix test result separately in accordance with ACI 214 for standard cylinders, molded, cured and tested according to ASTM C-31 and C-39. 2. Acceptance: Conform to criteria for acceptance of concrete as per ACI 318. 1.5 SUBMITTALS: A. Test Reports: Reports of concrete compression, yield, air content, and slump tests. B. Shop Drawings: Submit for review wall forming drawings showing all concrete outlines, ledges, pockets and inserts. Clark Patterson Lee 03/27/2014 JAMESTOWN CSD Lincoln Elementary Alterations 73654.01 CAST-IN-PLACE CONCRETE 033000 - 4 C. Certificates: 1. Material certificates: Provide materials certificates in lieu of materials laboratory test reports when permitted by Architect. Material certificates approval and certification by the NYSDOT for concrete aggregates will be accepted in lieu of laboratory tests. 2. Laboratory test reports: Submit laboratory test reports for concrete materials and mix design test as specified. a. Dry weights of cement. b. Saturated surface-dried weights of fine and coarse aggregate. c. Quantities, type and name of admixtures. d. Weight of water. 3. Ready-mix delivery tickets: ASTM C-94. D. Product Data: Submit manufacturer's product data with application and installation instructions for proprietary materials and items, including forming accessories, admixtures, patching compounds, waterstops, joint systems, curing compounds, dry-shake finish materials, and others as requested by Architect. 1.6 PRODUCT DELIVERY, STORAGE AND HANDLING: A. Cement: Store in weathertight enclosures and protect against dampness, contamination and warehouse set. B. Aggregates: 1. Stock pile to prevent excessive segregation or contamination with other material or other sizes of aggregates. 2. Use only one supply source for each aggregate stock pile. C. Admixtures: 1. Store to prevent contamination, evaporation or damage. 2. Protect liquid admixtures from freezing or harmful temperature ranges. 3. Agitate emulsions prior to use. 1.7 ENVIRONMENTAL REQUIREMENTS: A. Allowable Concrete Temperatures: 1. Cold weather: Maximum and minimum ASTM C94. 2. Hot weather: Maximum 90°F. B. Do not place concrete during rain, sleet or snow unless protection is provided. 1.8 PROTECTION: Requirements for hot and cold weather concreting specified herein are minimum only and Contractor shall remain fully responsible to produce, place and cure concrete which has not been weakened or injured by frost, freezing or by incomplete protection during hot weather. Clark Patterson Lee 03/27/2014 JAMESTOWN CSD Lincoln Elementary Alterations 73654.01 CAST-IN-PLACE CONCRETE 033000 - 5 1.9 COORDINATION: A. Give ample opportunity and full cooperation to various trades and other Contractors to install their required embedded items. Suitable templates and/or instructions will be provided for setting items not placed by trades themselves. B. Provide openings in concrete slabs for pipes and ducts where shown on drawings and/or for which instructions are given prior to placing concrete. C. Embedded Items: Subject to inspection and approval by Architect before concrete is placed. D. Fill openings, left in foundation walls for pipes, with concrete after pipes are in place. PART_2_-_PRODUCTS 2.1 MATERIALS: A. Portland Cement: ASTM C-150, Type I, unless otherwise acceptable to Architect. B. Aggregates: 1. Fine aggregate: ASTM C-33 and NYSDOT approved except contain maximum of 2% by weight of following: Shale, schist, alkali, earth, loam, mica, coated grains, soft and flaky particles. No more than 4% clay by volume. 95% pass No. 4 Sieve, less than 3% pass No. 100 Sieve. 2. Coarse aggregate: (Normal weight concrete) crushed stone or gravel, ASTM C-33 and NYSDOT approved except as noted below: a. Hard, strong, crystalline rock, free from shale or other soft materials, uncoated and clean. b. Crushed stone or gravel for plain concrete, pass 2 inch sieve, all retained on 1/4 inch sieve except maximum aggregate size shall conform to requirements specified herein based on concrete thickness and dimension between sides of forms. 3. Deleterious substance limits: a. Footings, foundation walls, grade beams, interior floor slabs not exposed to weather: ASTM C-33, Class 3S. b. Concrete exposed to weather: ASTM C-33, Class 4S, and NYSDOT Specifications for paving concrete. 4. Coarse aggregate: (lightweight concrete) a. Expanded slag, shale or clay: ASTM
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