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1. Available Products: Subject to compliance with <br /> 2.4 RELATED MATERIALS <br /> 1. Available Manufacturers: Subject to compliance with requirements. <br /> A. Sand Cushion: Clean,natural sand. <br /> B. Vapor Retarder: Provide vapor retarder that is resistant to deterioration when tested <br /> according to ASTM E 154,as follows: <br /> 1. Polyethylene sheet not less than 8 mils thick. <br /> C. Liquid Membrane-Forming Curing Compound: Liquid-type membrane-forming curing <br /> compound complying with ASTM C 309,Type I, Class A. Moisture loss not more than 0.55 kg/sq. meter <br /> when applied at 200 sq.ft./gal. <br /> 1. Provide material that has a maximum volatile organic compound(VOC)rating of 350 mg per <br /> liter. <br /> 2. Available Products: Subject to compliance with requirements. <br /> PROPORTIONING AND DESIGNING NIIXES <br /> See)1015 General Structural <br /> 2.5 CONCRETE MII�LING , <br /> A. Ready-Muced Concrete: Comply with requirements of ASTM C 94,and as spec�ed. <br /> PART 3-EXECUTION <br /> " 3.1 GENERAL <br /> A. Coordinate the installation of joint materials,vapor retarder/barrier,and other related materials with <br /> placement of forms and reinforcing steel. <br /> 3.2 FORMS <br /> A. General: Design,erect,support,brace,and maintain formwork to support vertical,lateral, <br /> static,and dynamic loads that might be applied until concrete structure can support such loads. Construct <br /> formwork so concrete members and structures aze of correct size,shape,alignment,elevation,and position. <br /> Maintain formwork construction tolerances and surface inegularities complying with the following ACI 347 <br /> limits: <br /> 1. Provide Class A tolerances for concrete surfaces exposed to view. <br /> 2. Provide Class C tolerances for other concrete surfaces. <br /> B. Provisions for Other Trades: Provide openings in concrete formwork to accommodate <br /> work of other trades. Determine size and location of openings,recesses,and chases from trades providing <br /> such items. Accurately place and securely support items built into forms. <br /> 33 VAPOR RETARDER/BARRIER INSTALLATION <br /> A. General: Place vapor retarder/barrier sheeting in position with longest dimension parallel <br /> with direction of pour. <br /> B. Lap joints 6 inches and seal with manufacturer's recommended mastic or pressure- <br /> sensitive tape. <br /> 3.4 PLACING REINFORCEMENT <br /> Page 3 of 8 <br />