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2023-661-E-Hamlett Associates-RFP5399 - Whitted Stormwater Improvements Project
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2023-661-E-Hamlett Associates-RFP5399 - Whitted Stormwater Improvements Project
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Last modified
11/21/2023 2:43:28 PM
Creation date
11/21/2023 2:39:10 PM
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Contract
Date
11/14/2023
Contract Starting Date
11/14/2023
Contract Ending Date
11/15/2023
Contract Document Type
Contract
Amount
$3,600.00
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8/06/2020 <br /> <br />07 13 00 BELOW GRADE WATERPROOFING Page 3 of 6 <br />PART 2 - PRODUCTS <br />2.1 SURFACE PREPARATION AND WATERPROOFING MATERIALS <br />A. Cementitious Parge Coat: Provide a cementitious parging mix designed for resurfacing/coating <br />of existing masonry materials and to provide a smooth, even substrate for application of the <br />waterproofing. Provide potable water and other accessories required for proper mixing and <br />application. <br />B. Sheet Waterproofing Membrane: Provide a self-adhesive, rubberized asphalt waterproofing <br />membrane with a laminated high density polyethylene film, total nominal thickness of 0.060” <br />(0.056” rubberized asphalt and 0.004” HDPE). The sheet shall be designed and manufactured <br />specifically for use as part of a below-grade waterproofing system on vertical foundation wall <br />applications and shall be compatible with the existing substrates and intended use. Acceptable <br />products and manufacturers include; Bituthene 3000 by Grace Construction Products; Polyguard <br />650 by Polyguard; or Mel-Rol by WR Meadows. <br />a. Tensile Strength-Membrane: 325 psi min. (ASTM D 412 – Die C) <br />b. Tensile Strength – Film: 5000 psi min. (ASTM D 882) <br />c. Elongation to Ultimate Failure of RA: 300% min. (ASTM D412) <br />d. Permeance: 0.05 perms max. (ASTM E 96 – water method) <br />e. Crack Cycling (100 cycles): No effect (ASTM C 836 @ -15°) <br />f. Peel Adhesion: > 9lbs/in. width (ASTM D 903) <br />g. Puncture Resistance (Membrane): 50 lbs. min. (ASTM E 154 – Blunt Instr.) <br />h. Resistance to Hydrostatic Head: 200 ft min. (ASTM D 5385-93) <br />i. Water Absorption: 0.1% max. (ASTM D 570) <br />j. The products/manufacturers listed denote the quality standard of product desired. Requests for <br />substitution of another manufacturer or product must include sufficient documentation to indi- <br />cate that manufacturer and/or product submitted meet the technical, performance, and warranty <br />requirements of these specifications and are equivalent to the quality of those listed, must be <br />submitted by qualified project bidders (not accepted from manufacturers). The Designer shall <br />be the sole judge of acceptance of requests for substitution. <br /> <br />C. Surface Primer: Provide a surface conditioner/primer recommended and supplied by the <br />waterproofing membrane manufacturer for specific use with their sheet membrane material. <br />Primer is intended for use over the cured parge coat to ensure a proper substrate and enhance <br />adhesion of the waterproofing membrane. Primer use is required even if it is considered optional <br />by the manufacturer. <br />D. Liquid Membrane, Detail Tape, Detail Sealant, Mastic: Provide system-specific liquid <br />membranes, detail tapes, detail sealants, and mastics supplied by the sheet membrane <br />manufacturer and intended for use as a part of system detailing at corners, transitions, <br />penetrations, and terminations, and other detailing conditions to meet the project and <br />manufacturer requirements. <br />E. Termination Bar: Provide an aluminum or stainless steel termination or compression bar, 1/8” x <br />1”. Bar shall have pre-drilled slotted holes at 8” o.c. No plastic or polymer termination bars will <br />be accepted. Secure with stainless steel fasteners suitable for securement into existing masonry. <br />DocuSign Envelope ID: 7D9ACD4F-8F6C-42B6-9ADB-C60032DB6D03
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