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SECTION 07170 BENTONITE WATERPROOFING

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PART 1 GENERAL

1.1 SECTION INCLUDES

1.A. Bentonite waterproofing and accessories.

1.2 RELATED SECTIONS

2.A. Section 02250 - Shoring and Underpinning

2.B. Section 02320 - Backfill.

2.C. Section 02450 - Piles

2.D. Section 02620 - Subdrainage: Foundation drainage piping and drainage fill.

2.E. Section 03300 - Cast-In-Place Concrete: Concrete placement, curing, and finishing.

2.F. Section 03371 - Shotcrete.

2.G. Section 03400 - Structural Precast Concrete: Precast concrete members and placement.

2.H. Section 05810 - Expansion Joint Cover Assemblies.

2.I. Section 06150 - Wood Decking: Plywood decks.

2.J. Section 07900 - Joint Sealers.

2.K. Division 15 Mechanical - Deck and Floor Drains and other Mechanical Penetrations

2.L. Division 16 Electrical - Conduit and other Electrical Penetrations

1.3 REFERENCES

07170-1 3.A. ASTM C 836 - Standard Specification for High Solids Content, Cold Liquid-Applied Elastomeric Waterproofing Membrane for Use with Separate Wearing Course.

3.B. ASTM D 638 - Standard Test Method for Tensile Properties of Plastics.

3.C. ASTM D 1434 - Standard Test Method for Determining Gas Permeability Characteristics of Plastic Film and Sheeting).

3.D. ASTM D 1621 - Standard Specification for Flexible Cellular Materials--Vinyl Chloride Polymers and Copolymers (Open-Cell Foam).

3.E. ASTM D 1709 - Standard Specification for Impact Resistance of Plastic Film by the Free-Falling Dart Method.

3.F. ASTM D 1790 - Standard Test Method for Brittleness Temperature of Plastic Sheeting by Impact;.

3.G. ASTM D 3786 - Standard Test Method for Hydraulic Bursting Strength of Knitted Goods and Nonwoven Fabrics--Diaphragm Bursting Strength Tester Method;.

3.H. ASTM D 4355 - Standard Test Method for Deterioration of Geotextiles by Exposure to Light, Moisture, and Heat in a Xenon Arc Type Apparatus.

3.I. ASTM D 4491 - Standard Test Methods for Water Permeability of Geotextiles by Permittivity.

3.J. ASTM D 4533 - Standard Test Method for Trapezoid Tearing Strength of Geotextiles.

3.K. ASTM D 4632 - Standard Test Method for Grab Breaking Load and Elongation of Geotextiles.

3.L. ASTM D 4716 - Test Method for Determining the (In-plane) Flow Rate per Unit Width and Hydraulic Transmissivity of a Geosynthetic Using a Constant Head.

3.M. ASTM D 4751 - Standard Test Method for Determining Apparent Opening Size of a Geotextile.

3.N. ASTM D 4833 - Standard Test Method for Index Puncture Resistance of Geotextiles, Geomembranes, and Related Products.

3.O. ASTM D 5385 - Standard Test Method for Hydrostatic Pressure Resistance of Waterproofing Membranes.

3.P. ASTM E 96 - Standard Test Methods for Water Vapor Transmission of Materials.

3.Q. ASTM E 154 - Standard Test Methods for Water Vapor Retarders Used in Contact with Earth Under Concrete Slabs, on Walls, or as Ground Cover.

1.4 SYSTEM DESCRIPTION 07170-2 4.A. Provide waterproofing system to prevent the passage of liquid water and install without defects, damage or failure. Waterproofing shall be a self-sealing composite sheet membrane composed of high density polyethylene with a bentonite face laminated with geotextile that provides complete dual-waterproofing and a gas/vapor barrier.

4.B. Provide drainage panels and drainage strips over membrane waterproofing as required. Coordinate with the installation of foundation drainage piping and drainage fill specified in Section 02620 and backfill specified in Section 02320.

1.5 SUBMITTALS

5.A. Submit under provisions of Section 01300.

5.B. Product Data: Manufacturer's data sheets on each product to be used, including: 5.B.1. Preparation instructions and recommendations. 5.B.2. Storage and handling requirements and recommendations. 5.B.3. Installation Instructions.

5.C. Shop Drawings: Drawings prepared specifically for this project, showing locations and extent of waterproofing, details for substrate joints and cracks, sheet flashing, penetrations, and termination conditions.

5.D. Samples: Submit two samples of each of the following: 5.D.1. Waterproof membrane material. 5.D.2. Geomembrane material. 5.D.3. Drainage panel. 5.D.4. Drainage strip.

5.E. Manufacturer's Certificates: Certify products meet or exceed specified requirements.

5.F. Approved Applicator: Certificate signed by manufacturer certifying installer qualifications.

1.6 QUALITY ASSURANCE

6.A. Manufacturer Qualifications: Company specializing in direct production of bentonite waterproofing systems and all accessory products specified. Manufacturer shall be capable of providing field service representation during construction and approving an acceptable installer.

6.B. Installer Qualifications: A company with at least 3 years experience in work of this section, who can comply with manufacturer's warranty requirements, and who is an Approved Applicator of the waterproofing system manufacturer.

6.C. Mock-Up: Apply waterproofing system to 100 square feet (9.3 sq m) of surface to demonstrate 07170-3 surface preparation, joint and crack treatment, thickness, texture, and standard of workmanship. 6.C.1. Notify Architect one week in advance of the dates and times when mock-up will be prepared. 6.C.2. If Architect determines that mock-up does not meet requirements, reapply waterproofing until mock-up is approved. 6.C.3. Retain and maintain approved mock-up during construction in undisturbed condition as standard for judging completed waterproofing. Undamaged mock-up may become part of the completed work.

6.D. Water Sample Test: Prior to start of waterproofing installer shall collect and ship a 64-fluid ounce (2-liters) sample of actual site water to waterproofing membrane manufacturer for analysis. Manufacturer shall conduct test free of charge. Manufacturer shall provide written report confirming suitability of waterproofing system for installation with project conditions prior to convening of the Pre-Installation Conference.

6.E. Pre-Installation Conference: Convene prior to commencement of field installation to establish procedures to maintain required working conditions and to coordinate this work with related and adjacent work. Verify that final waterproofing and waterstop details comply with waterproofing manufacturer's current installation requirements and recommendations. Attendees should include representatives of the Owner, Architect, Contractor, waterproofing installer and supervisors of trades representing concrete, excavating/backfill, and mechanical and electrical work penetrating the waterproofing.

1.7 DELIVERY, STORAGE, AND HANDLING

7.A. Deliver materials in factory sealed and labeled packaging. Handle and store waterproofing materials following manufacturer's instructions.

7.B. Do not double-stack pallets during shipping or storage. Protect waterproofing materials from moisture, excessive temperatures and sources of ignition. Provide cover, top and all sides, for materials stored on-site, allowing for adequate ventilation.

7.C. Protect from construction operation related damage, as well as, damage from weather, excessive temperatures and prolonged sunlight. Remove damaged material from site and dispose of in accordance with applicable regulations.

1.8 PROJECT CONDITIONS

8.A. Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's absolute limits.

8.B. Perform work only when existing and forecasted weather conditions are within the guidelines established by the manufacturer of the waterproofing materials. Do not apply waterproofing materials in areas of standing or active water; or over ice and snow.

8.C. Maintain site conditions to remove standing water from precipitation or ground water seepage. Should membrane be subjected to pre-hydration as a result of prolonged immersion, inspection of the material and written acceptance from waterproofing manufacturer. is required prior to concrete or backfill placement 07170-4 1.9 WARRANTY

9.A. Waterproofing shall be provided with the manufacturer's written warranty against defects in materials and workmanship for a period of 10 years following date of substantial completion of Project.

PART 2 PRODUCTS

2.1 MANUFACTURERS

1.A. Acceptable Manufacturer: Epro Waterproofing Systems, which is located at: P. O. Box 347; Derby, KS 67037; Toll Free Tel: 800-882-1896; Tel: 316-262-2513; Fax: 316-262-2529; Email: request info ([email protected]); Web: www.eproserv.com

1.B. Substitutions: Not permitted.

1.C. Requests for substitutions will be considered in accordance with provisions of Section 01600.

2.2 PRODUCTS

2.A. Three Layer Membrane: Bento-Pro Plus is a three layer sheet waterproofing system consisting of a self-sealing, expandable layer of granular bentonite laminated to an impermeable high density polyethylene film with a protective layer of non-woven polypropylene laminated to the bentonite. Pro Physical Properties: 2.A.1. Membrane: 20 mil Virgin Resin HDPE 2.A.2. Bentonite: Wyoming Sodium Montmorillonite (High Swell Type) 2.A.3. Geotextile: Non-Woven Polypropylene (available in 1/2 oz., 3 oz., and 6 oz.) 2.A.4. Weight: 1 lb. per sq. ft. (4.89 kg/m2) 2.A.5. Puncture Resistance: ASTM E 154 171 lb. (77.5 kg) 2.A.6. Membrane Tensile Strength: ASTM D 638 MD: 3670 psi (31.3 MPa) TD: 3500 psi (29.9 MPa) 2.A.7. Percentage Elongation at Break: ASTM D 638 > 700 percent 2.A.8. Peal Adhesion of Geotextile: ASTM C 836 28 lb/in 2.A.9. Resistance to Hydrostatic Head: ASTM D 5385 100 psi max. Pressure (231 ft. water) 2.A.10. Permeability: ASTM E 96 0.033 Perms (grains/ft2 hr in HG) 2.A.11. Resistance to Microorganisms: ASTM E 154 Unaffected. 2.A.12. Non Toxic: Do Not Ingest 2.A.13. Freeze Thaw Cycles: No effect before or after Installation 2.A.14. Chemical Resistance: Extremely High. Contact EPRO for specific Information. 2.A.15. 07170-5 Life Expectancy: Bentonite & HDPE measurable in the thousands of years. 2.A.16. Installation Temperatures: minus 25 degree F to 150 degree F (minus 31.7 degrees C to 54.4 degrees C)

2.B. Multi Layer Membrane: Bento-Pro Ultra is a multi-layer sheet waterproofing system consisting of a self-sealing, expandable layer of granular bentonite laminated to each side of an impermeable high density polyethylene film with a protective layer of non-woven polypropylene laminated to the bentonite layers. Ultra Physical Properties: 2.B.1. Membrane: 20 mil Virgin Resin HDPE 2.B.2. Bentonite: Wyoming Sodium Montmorillonite (High Swell Type) 2.B.3. Geotextile: Non-Woven Polypropylene (available in 1/2 oz., 3 oz., and 6 oz.) 2.B.4. Weight: 1.5 lb. per sq. ft. (7.34 kg/m2) 2.B.5. Puncture Resistance: ASTM E 154 172 lb. (77.5 kg) 2.B.6. Membrane Tensile Strength: ASTM D 638 MD: 3670 psi (31.3 MPa) TD: 3500 psi (29.9 MPa) 2.B.7. Percentage Elongation at Break: ASTM D 638 > 700 percent 2.B.8. Peal Adhesion of Geotextile: ASTM C 836 28 lb/in 2.B.9. Resistance to Hydrostatic Head: ASTM D 5385 100 psi max. Pressure (231 ft. water) 2.B.10. Permeability: ASTM E 96 0.024 Perms (grains/ft2 hr in HG) 2.B.11. Resistance to Microorganisms: ASTM E 154 Unaffected. 2.B.12. Non Toxic: Do Not Ingest 2.B.13. Freeze Thaw Cycles: No effect before or after Installation 2.B.14. Chemical Resistance: Extremely High. Contact EPRO for specific Information. 2.B.15. Life Expectancy: Bentonite & HDPE measurable in the thousands of years. 2.B.16. Installation Temperatures: minus 25 degree F to 150 degree F (minus 31.7 degrees C to 54.4 degrees C)

2.C. Accessories: Provide the products required to complete the waterproofing system as indicated on the Drawings and specified herein. 2.C.1. Ecoline T: Trowel grade high-viscosity mastic-like material comprised of water based bituminous/asphalt emulsion modified with liquid synthetic polymerized rubber and fillers for detailing penetrations, tie-backs, soil nails and seam overlaps. 2.C.2. Ecoline R: Roller grade mastic-like material comprised of water based bituminous/asphalt emulsion modified with liquid synthetic polymerized rubber and fillers for detailing penetrations, tie-backs, soil nails and seam overlaps. 2.C.3. Ecoline S: Spray grade mastic-like material comprised of water based bituminous/asphalt emulsion modified with liquid synthetic polymerized rubber and fillers for detail work and seam overlaps. 2.C.4. Bento-Pro Granular: Place in horizontal corner transitions and use for details and repair. 07170-6 2.C.5. Epro Seam Tape 2.C.6. Termination Bar of flexible, high strength PVC. 2.C.7. Fasteners: Case hardened steel nails 1 inch length with 1 inch diameter cap or powder actuated steel pin with 3/4 inch washer for hardened concrete and masonry surfaces. 2.C.8. Protection Course: As recommended by waterproofing membrane manufacturer. 2.C.9. Epro Polyester

2.D. Polyethylene Geomembrane: Epro ECOSHIELD-E; cross-linked polyolefin. 2.D.1. 8 mil (0.2 mm) Thickness: 2.D.1.a. Puncture Resistance: 876 grams, minimum, when tested in accordance with ASTM D 1709. 2.D.1.b. Tensile Strength: 24.59 lb/in (4.3 kN/m), minimum, when tested in accordance with ASTM E 154 in the machine direction. 2.D.1.c. Tear Resistance: 3.48 lbf ,minimum, when tested in accordance with ASTM D 4533. 2.D.1.d. Water Vapor Transmission Rate: 0.00711 grains/sq ft/hr (0.005 g/h sq m), maximum, when tested in accordance with ASTM E 96. 2.D.1.e. Water Vapor Permeance: 0.0143 perms (0.8 ng/(Pa s sq m)), maximum, when tested in accordance with ASTM E 96. 2.D.2. 10 mil (0.25 mm) Thickness: 2.D.2.a. Puncture Resistance: 1593 grams, minimum, when tested in accordance with ASTM D 1709. 2.D.2.b. Tensile Strength: 34.6 lb/in (6.1 kN/m), minimum, when tested in accordance with ASTM E 154 in the machine direction. 2.D.2.c. Tear Resistance: 5.98 lb (26.6 N), minimum, when tested in accordance with ASTM D 4533. 2.D.2.d. Water Vapor Transmission Rate: 0.00621 grains/ft/hr (0.004 g/h sq m), maximum, when tested in accordance with ASTM E 96. 2.D.2.e. Water Vapor Permeance: 0.0133 perms (0.76 ng/(Pa s sq m)), maximum, when tested in accordance with ASTM E 96. 2.D.3. 15 mil (0.38 mm) Thickness: 2.D.3.a. Puncture Resistance: 1898 grams, minimum, when tested in accordance with ASTM D 1709. 2.D.3.b. Tensile Strength: 39.7 lb/in (6.9 kN/m), minimum, when tested in accordance with ASTM E 154 in the machine direction. 2.D.3.c. Tear Resistance: 9.74 lbf (43.3 N), minimum, when tested in accordance with ASTM D 4533. 2.D.3.d. Water Vapor Transmission Rate: 0.00585 grains/ft/hr (0.004 g/h sq m), maximum, when tested in accordance with ASTM E 96. 07170-7 2.D.3.e. Water Vapor Permeance: 0.0123 perms (0.71 ng/(Pa s sq m), maximum, when tested in accordance with ASTM E 96. 2.D.4. Low Temperature Impact Resistance: Resistant to impact down to minus 157 degrees F (minus 105 degrees C), at least, when tested in accordance with ASTM D 1790. 2.D.5. Chemical and Environmental Resistance: Excellent, Ref: Koemer, Robert, 1994 "Designing with Geosynthetics." 3rd edition, General chemical resistance guidelines.. 2.D.6. Methane Gas Transmission: 0, when tested in accordance with ASTM D 1434 modified.

2.E. Reinforcing/Barrier Sheet: Polypropylene/polyethylene geomembrane, ECOSHIELD P or PP; 4 mil (0.1 mm) thick polyethylene laminated with 4 oz per sq yd (0.13 kg/sq m) polypropylene non-woven fabric; providing good adhesion for grouts, mortars, and adhesives. 2.E.1. Breaking Load: 127 lbf (533 N), minimum, when tested in accordance with ASTM D 4632 (Grab tensile) 2.E.2. Elongation: 50 percent, minimum, when tested in accordance with ASTM D 4632. 2.E.3. Bursting Strength: 240 psi (1.65 Mpa), when tested in accordance with ASTM D 3786. 2.E.4. Puncture Resistance: 70 lbf (311 N), minimum, when tested in accordance with ASTM D 4833. 2.E.5. Ultraviolet Resistance: 70 percent strength retained, minimum, when tested in accordance with ASTM D 4355 after 150 hours exposure. 2.E.6. Light Reflectance: 88 percent, minimum, when tested in accordance with ASTM E 97. 2.E.7. Methane Gas Transmission: 0 when tested in accordance with ASTM D 1434 modified.

2.F. Polyethylene Drainage Panel: ECODRAIN-E, 3 dimensional molded high density polyethylene composite drainage panel; non-biodegradable; with permeable geo-textile heat bonded to drainage core. 2.F.1. Vertical In-Plane Water Flow Rate: 5.1 gpm/ft width (1 L/s/m width), minimum, when tested in accordance with ASTM D 4716. 2.F.2. Core: 2.F.2.a. Compressive Strength: 5,200 psf (249 kPa), minimum, when tested in accordance with ASTM D 1621. 2.F.2.b. Thickness: 0.31 inch (7.9 mm), when tested in accordance with ASTM D 1777. 2.F.3. Fabric: Polypropylene. 2.F.3.a. Perpendicular Water Flow Rate: 55 gpm/sq ft (37 L/h/sq m), minimum, when tested in accordance with ASTM D 4491. 2.F.3.b. Permittivity: 0.7/second, when tested in accordance with ASTM D 4491. 2.F.3.c. Apparent Opening Size: 70 sieve size, when tested in accordance with ASTM D 4751. 2.F.3.d. Elongation: 60 percent, minimum, when tested in accordance with ASTM D 4632. 2.F.3.e. Bursting Strength: 140 psi (0.96 Mpa), minimum, when tested in accordance with 07170-8 ASTM D 3786. 2.F.3.f. Breaking Load: 130 lbf (578 N), minimum, when tested in accordance with ASTM D 4632 (Grab tensile). 2.F.3.g. Puncture Resistance: 40 lbf (178 N), minimum, when tested in accordance with ASTM D 4833. 2.F.3.h. Tear Resistance: 60 lbf (267 N), minimum, when tested in accordance with ASTM D 4533 (trapezoidal tear).

2.G. Standard Duty Polypropylene Drainage Panel: ECODRAIN-S-6000; 3 dimensional molded polypropylene composite sheet panel; non-biodegradable; with permeable geo-textile heat bonded to drainage core. 2.G.1. Horizontal In-Plane Water Flow Rate: 3.2 gpm/ft width (0.66 L/s/m width), minimum, when tested in accordance with ASTM D 4716. 2.G.2. Vertical In-Plane Water Flow Rate: 18 gpm/ft width (3.7 L/s/m width), minimum, when tested in accordance with ASTM D 4716. 2.G.3. Core: 2.G.3.a. Compressive Strength: 17,000 psf (813 kPa), minimum, when tested in accordance with ASTM D 1621. 2.G.3.b. Thickness: 0.40 inch (10.2 mm), when tested in accordance with ASTM D 1777. 2.G.4. Fabric: Woven polypropylene. 2.G.4.a. Perpendicular Water Flow Rate: 110 gpm/sq ft (74 L/h/sq m), minimum, when tested in accordance with ASTM D 4491. 2.G.4.b. Permittivity: 1.6/second, when tested in accordance with ASTM D 4491. 2.G.4.c. Apparent Opening Size: 80 sieve size, when tested in accordance with ASTM D 4751. 2.G.4.d. Elongation: 50 percent, minimum, when tested in accordance with ASTM D 4632. 2.G.4.e. Bursting Strength: 315 psi (2171 kPa), minimum, when tested in accordance with ASTM D 3786. 2.G.4.f. Tensile Strength: 110 lbf (489 N), minimum, when tested in accordance with ASTM D 4632 (Grab tensile). 2.G.4.g. Puncture Resistance: 90 lbf (400 N), minimum, when tested in accordance with ASTM D 4833. 2.G.4.h. Tear Resistance: 65 lbf (289 N), minimum, when tested in accordance with ASTM D 4533 (trapezoidal tear).

2.H. High Performance Polypropylene Drainage Panel: ECODRAIN-S-9000; 3 dimensional molded polypropylene composite sheet panel; non-biodegradable; with permeable geo-textile heat bonded to drainage core. 2.H.1. Horizontal In-Plane Water Flow Rate: 3.8 gpm/ft width (0.79 L/s/m width), minimum, when tested in accordance with ASTM D 4716. 2.H.2. Vertical In-Plane Water Flow Rate: 21 gpm/ft width (4.35 L/s/m width), minimum, when 07170-9 tested in accordance with ASTM D 4716. 2.H.3. Core: 2.H.3.a. Compressive Strength: 18,000 psf (861 kPa), minimum, when tested in accordance with ASTM D 1621. 2.H.3.b. Thickness: 0.40 inch (10.2 mm), when tested in accordance with ASTM D 1777. 2.H.4. Fabric: Woven polypropylene 2.H.4.a. Water Flow Rate: 100 gpm/sq ft (68 L/h/sq m), minimum, when tested in accordance with ASTM D 4491. 2.H.4.b. Permittivity: 1.36/second, when tested in accordance with ASTM D 4491. 2.H.4.c. Apparent Opening Size: 40 sieve size, when tested in accordance with ASTM D 4751. 2.H.4.d. Elongation: 24 percent, minimum, when tested in accordance with ASTM D 4632. 2.H.4.e. Bursting Strength: 480 psi (3309 kPa), minimum, when tested in accordance with ASTM D 3786. 2.H.4.f. Tensile Strength: 365 lbf (1623 N), minimum, when tested in accordance with ASTM D 4632 (Grab tensile). 2.H.4.g. Puncture Resistance: 105 lbf (467 N), minimum, when tested in accordance with ASTM D 4833. 2.H.4.h. Tear Resistance: 115 lbf (511 N), minimum, when tested in accordance with ASTM D 4533 (trapezoidal tear).

2.I. Drainage Strip: 3 dimensional molded polystyrene core; non-biodegradable; wrapped with permeable geotextile. 2.I.1. In-Plane Flow Rate: 21 gpm/ft width (4.35 L/s/m width), minimum, when tested in accordance with ASTM D 4716 at hydraulic gradient of 1.0 and 10 psi (69 kPa) loading. 2.I.2. Unobstructed Inflow Area: 85 percent. 2.I.3. Thickness: 1 inch (25.4 mm). 2.I.4. Compressive Strength: 6,000 to 9,000 psf (287 to 431 kPa), minimum, when tested in accordance with ASTM D 1621. 2.I.5. Shear Strength: 6,000 to 9,500 psf (287 to 455 kPa), minimum, when tested in accordance with ASTM D 1621. 2.I.6. Fungus Resistance: No growth, when tested in accordance with ASTM G 21, both core and fabric. 2.I.7. Fabric: Woven polypropylene, 4 oz/sq yd (0.13 kg/sq m). 2.I.7.a. Perpendicular Water Flow Rate: 170 gpm/sq ft (116 L/h/sq m), minimum, when tested in accordance with ASTM D 4491. 2.I.7.b. Permeability: .20 cm/sec, when tested in accordance with ASTM D 4491. 2.I.7.c. Apparent Opening Size: 80 sieve size, when tested in accordance with ASTM D 4751. 07170-10 2.I.7.d. Elongation: 50 percent, minimum, when tested in accordance with ASTM D 4632. 2.I.7.e. Bursting Strength: 240 psi (1654 kPa), minimum, when tested in accordance with ASTM D 4751. 2.I.7.f. Tensile Strength: 115 lbf (511 N), minimum, when tested in accordance with ASTM D 4632 (Grab tensile). 2.I.7.g. Puncture Resistance: 70 lbf (311 N), minimum, when tested in accordance with ASTM D 4833. 2.I.7.h. Tear Resistance: 50 lbf (222 N), minimum, when tested in accordance with ASTM D 4533 (trapezoidal tear). 2.I.7.i. Ultraviolet Resistance: 85 percent retained strength, minimum, when tested in accordance with ASTM D 4355.

PART 3 EXECUTION

3.1 EXAMINATION

1.A. Examine substrates and other conditions under which this section of work is to be performed. Notify the Architect, in writing, of circumstances unsatisfactory to the proper completion of the work. Do not proceed with work until unsatisfactory conditions are corrected and are acceptable for compliance with manufacturer's warranty requirements.

1.B. Mud Slabs: Concrete mud slabs shall have a float finish and a planar surface without sharp angular depressions, voids or raised features.

1.C. Compacted Soil, Gravel Sub-Grade: Provided as specified in Section 02320 and consisting of 3/4 inch (19 mm) stone or smaller aggregate compacted to a minimum Modified Proctor compaction of 85 percent or greater as specified. Finished sub-grade shall be well-leveled, uniform and free of debris and standing water or ice.

1.D. Wood Timber Shoring: Provided as specified in Section 02250 and extending to the lowest level of the waterproofing installation with all voids or cavities exterior of the lagging timbers filled with compacted soil or cementitious grout. Interior surface of lagging boards should be planar and tight together with gaps less than 1 inch (25 mm). 1.D.1. Gaps in excess of 1 inch should be filled with cementitious grout, wood, or extruded polystyrene (20 psi minimum). 1.D.2. Areas where lagging gaps are 2-1/2 inches (63 mm) or less, use Ecodrain Drainage Composite, as specified in Section 02620, over lagging to provide uniform surface to mount the waterproofing without requirement of filling gaps. Ecodrain sheet and base drain system should be connected to an operative water discharge system. 1.D.3. All lagging board nails and other mechanical projections shall be removed or pounded flush. 1.D.4. Install protection material over all soldier piles with raised lagging hanger bolts, form tie rods, or other irregular surface; protection material should extend a minimum 6 inches (150 mm) to both sides of the steel piling.

1.E. Cut Rock Face or Auger Cast Caisson Shoring Walls: Provide as specified in Section 02450. 07170-11 Interior surface of cut rock and concrete auger pile retention walls should be planar without irregular surface conditions, voids, and sharp transitions that would leave a void space to the outside of the drainage and waterproofing installation. Irregular rock, void pockets, cracks, sharp concave transitions should be completely filled or smoothed with cementitious grout, shotcrete, or other approved solid material.

1.F. Cast-In-Place Concrete: Provided as specified in Section 03300 with surfaces to receive waterproofing of sound structural grade with smooth finish, free of debris, oil, grease, laitance, dirt, dust, or other foreign matter, which will impair the performance of the waterproofing system. Membrane can be installed on new structural concrete as soon as the forms are removed and specific concrete curing time is completed. Reinforced structural slabs should be a minimum of 6 inches (150 mm) thick when placed on a working mud slab. Reinforced concrete slab(s) on compacted grade shall be a minimum of 4 inches (100 mm) thick. When hydrostatic conditions exist, install membrane under and over all footings, elevator pits and grade beams. 1.F.1. Honeycombing, aggregate pockets, tie-rod holes and other voids shall be completely filled with non-shrink cementitious grout and level with monolithic concrete surface. 1.F.2. Slope horizontal deck or roof concrete surfaces for positive drainage to the deck drains or perimeter edges. Design deck drain positions with an appropriate sump depression surrounding the drain.

1.G. Precast Concrete Deck: Provided as specified in Section 03400. Install units secured to structural supports in accordance with the concrete deck manufacturer's requirements and industry practice. All joints between precast units shall be completely grouted and flush with deck. Any differential in elevation between precast units shall be feathered for a smooth transition.

1.H. Seal all below grade expansion joints with sealant as specified in Section 07900 prior to the installation of the Waterproofing System. Expansion joint material will be the primary seal at the expansion joint and the sealant manufacturer will be responsible for water tightness of the joint.

1.I. Mechanical or other Penetrations: Mechanical, structural, or architectural materials that will pass through the plane of the waterproofing membrane shall be properly installed and secured in their final position prior to installation of the waterproofing system.

3.2 PREPARATION

2.A. Clean surfaces thoroughly prior to installation.

2.B. Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.

2.C. Remove dirt, debris, oil, grease, cement laitance, or other foreign matter, which will impair or negatively affect the performance of the waterproofing and drainage system.

2.D. Protect adjacent work areas and finish surfaces from damage or contamination from waterproofing products during installation operations.

3.3 INSTALLATION

3.A. 07170-12 Install in accordance with manufacturer's instructions and recommendations.

3.B. Install Waterproofing System in all horizontal and vertical cold pour construction joints and around all penetrations, structural elements and tie-rod holes that extend through the wall.

3.C. Under-Slab: 3.C.1. Install membrane sheets with HDPE side down with edges overlapping 3 inches (75 mm) minimum. Stagger end laps 12 inches (300 mm) and fasten all overlapped seams with box staples 8 inches (200 mm) on center. Overlap seams may also be detailed with Ecoline T, S or R as recommended by waterproofing manufacturer. 3.C.2. Extend membrane upward within formwork to provide tie-in to vertical membrane placement. Install membrane in double layer along bottom edges of slabs and wrapped footings extending 6 inches (150 mm) from edge in each direction. 3.C.3. Extend membrane placement to interior vertical wall face and/or columns and terminate as recommended by waterproofing manufacturer. 3.C.4. Detail all penetrations through slab as recommended by waterproofing manufacturer. 3.C.5. Protect membrane from damage caused by rebar placement and support chairs. 3.C.6. Prior to concrete placement, protect waterproofing system from rainfall with poly sheets and pump out any standing water. Remove protective sheets before placing concrete. 3.C.7. When heavy rainfall is anticipated, place a layer of Ecoshield onto prepared subgrade and overlap seams 6 inches (150 mm). Install Bento-Pro Plus onto this layer per above instructions but with HDPE side up.

3.D. Blind-Side Wall, Property Line Construction: 3.D.1. Install a horizontally oriented course of waterproofing membrane to the lowest vertical surface of earth retention wall prior to mat slab or footing placement. 3.D.2. Detail all vertical inside and outside corners and returns with a 12 inch (300 mm) strip of membrane fitted tightly and fastened securely and HDPE facing retention wall. 3.D.3. Install membrane oriented vertically with HDPE facing retention wall and overlap minimum of 3 inches (75 mm) for cast concrete and 4 inches (100 mm) for shotcrete walls. Fasten securely with nails every 24 inches (600 mm) on center and staples 3 inches (75 mm) on center. 3.D.4. Detail all penetrations, tiebacks, soil nail heads, etc., as recommended by waterproofing manufacturer. Detail work shall be completed prior to concrete or shotcrete placement. 3.D.5. Inspect and repair membrane prior to placement of concrete formwork or shotcrete. 3.D.6. Terminate installation at grade line with termination bar securely attached with nails through membrane and into concrete. Detail termination with Ecoline T or R.

3.E. Free Standing, Back Filled Wall: 3.E.1. Vertically Oriented Installation: With HDPE side facing outward, position membrane to extend minimum 6 inches (150 mm) onto footing and/or overlap below slab waterproofing extension and fasten securely with nails 24 inches (600 mm) on center. Install additional membrane sheets overlapping adjoining sheet minimum 2 inches (50 mm) and secure with nails 24 inches (600 mm) on center through overlapped edges of adjoining sheet 07170-13 and 18 inches (225 mm) on tops of footing and horizontal returns. 3.E.2. Horizontally Oriented Installation: At lowest section of walls, attach membrane, HDPE side out with nails 24 inches (600 mm) on center. Extend membrane minimum 6 inches (150 mm) onto footing and/or overlap below slab waterproofing extension. Install additional sheets of membrane in shingle fashion overlapping adjoining sheets 2 inches (50 mm) and secure with nails 24 inches (600 mm) on center at overlaps and 18 inches (225 mm) on top of footing. 3.E.3. Apply seam tape to seam overlaps or detail with Ecoline R. 3.E.4. Detail all penetrations with Ecoline T and counter flash on top of membrane. 3.E.5. Terminate at grade line with termination bar and Ecoline T. 3.E.6. Inspect installation prior to backfill and compaction.

3.F. Tunnel Roof: 3.F.1. Place 12 inches (300 mm) strips centered into all corners and onto all returns and secure with nails. 3.F.2. Beginning at the lowest level of the surface, install membrane with HDPE side facing up. Membrane shall be placed in shingle fashion with edges and ends overlapped minimum 2 inches (50 mm). Secure with nails 24 inches (600 mm) on center through overlapped edges. 3.F.3. Apply seam tape to all overlaps or detail with Ecoline R, T or S.

3.G. Drainage Panels: Place and secure panels to substrate according to manufacturer's written instructions. Use adhesives and adhesive strips (sheet flashing that does not penetrate waterproofing) as recommended by manufacturer. Overlap edges of dimpled core and ends of geo-textile to maintain continuity. Protect installed panels during subsequent construction.

3.H. Install drainage strip at foot of each wall, on top of footing, extending to subdrainage system or to daylight at lower grade elevation.

3.4 PROTECTION

4.A. Protect installed products until completion of project.

4.B. Do not permit traffic over unprotected or uncovered waterproofing.

4.C. Protect installed waterproofing from precipitation or ground water with temporary polyethylene sheeting. Remove sheeting when backfilling begins.

4.D. .

4.E. Repair or replace damaged products before Substantial Completion.

3.5 SCHEDULES

5.A. 07170-14 :

5.B. :

END OF SECTION

07170-15