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ECS Pacific, Inc. <br />Project No. 81:1145 <br /> <br />City of Santa Ana Public Library Renovation <br />26 Civic Center Plaza <br />Santa Ana, California 92701 <br /> <br />COLD FLUID-APPLIED WATERPROOFING <br /> <br />07 1416 - 8 <br /> <br /> <br />requirements and other conditions affecting performance of the Work. <br />1. Verify that concrete has cured and aged for minimum time period as <br />recommended in writing by waterproofing manufacturer. <br />2. Test substrate as moisture level as outlined below and verify that substrate is <br />visibly dry and within the moisture limits as recommended in writing by <br />waterproofing manufacturer. <br />3. Prior to installation of waterproofing, document and record testing of concrete <br />substrate to minimum pH of 7. <br />B. Verify substrate surfaces are free of frozen matter, dampness, loose particles, <br />projections, penetrations, or foreign matter detrimental to adhesion or application of <br />waterproofing system. Utilize dehumidifiers, fans, etc. as necessary to ensure <br />substrate moisture is within manufacturer’s accepted tolerance. <br />C. Verify substrate surfaces are smooth, free of honeycomb or pitting, and not detrimental <br />to full contact bond of waterproofing materials and achieve required profile. <br />D. Verify compatibility and adhesion with existing waterproofing membrane to remain. <br />E. Verify items penetrating surfaces to receive waterproofing are securely installed. <br />F. Verify substrate surface slopes for horizontal waterproofing applications. <br />G. Proceed with installation only after unsatisfactory conditions have been corrected. <br />3.3 PREPARATION <br />A. Clean, prepare, and treat substrates in accordance with waterproofing manufacturer's <br />written instructions. Provide clean, dust-free, and dry substrates for waterproofing <br />application. <br />B. Mask off adjoining surfaces not receiving waterproofing to prevent spillage and <br />overspray affecting other construction. Protect surrounding areas from contact with <br />fluid-applied waterproofing. <br />C. Close off deck drains and other deck penetrations to prevent spillage and migration of <br />waterproofing fluids. <br />D. Remove grease, oil, bitumen, form-release agents, paints, curing compounds, acid <br />residues, and other penetrating contaminants or film-forming coatings from concrete. <br />1. Abrasive blast clean concrete surfaces uniformly to expose top surface of fine <br />aggregate in accordance with ASTM D4259 with a self-contained, recirculating, <br />blast-cleaning apparatus. Remove material to provide a sound surface free of <br />laitance, glaze, efflorescence, curing compounds, concrete hardeners, or form- <br />release agents. Remove remaining loose material and clean surfaces in <br />accordance with ASTM D4258. <br />E. Remove fins, ridges, and other projections, and fill honeycomb, aggregate pockets, <br />holes, and other voids. <br />F. Coordinate with Owner for impact to air-intake equipment in the vicinity of the Work. <br />Cover or filter air-intake louvers before proceeding with work that could affect indoor air <br />quality or that could activate smoke detectors in the ductwork.