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SPECIFICATION NUMBER: <br /> „ �,„Climax Molybdenum CONCRETE CONSTRUCTION 03 30 00 SPE <br /> A Freeport-McMoRan Company TECHNICAL SPECIFICATION PROJECT NAME: <br /> CAVR Shaft Closure Project I <br /> a. Reinforcing steel shall be detailed and fabricated in accordance with <br /> ACI 315 unless otherwise noted on the Design Drawings. <br /> b. Reinforcing steel, as delivered, shall be free of loose mill scale, <br /> loose rust, paint, grease, oil, dirt, mud or any other foreign material <br /> which will prevent or reduce bonding. <br /> c. Fabricated reinforcement shall be free of twists, kinks or <br /> unscheduled bends. Such defects shall be cause for rejection and <br /> replacement at the Contractor's expense. <br /> d. Reinforcing steel shall be bent cold without inducing fractures or <br /> cracking in the steel. <br /> E. Reinforcement Accessories <br /> 1. Bar supports,tie wire and accessories shall be supplied by the Contractor. <br /> 2. Bar supports of standard types and sizes shall conform to the Concrete <br /> Reinforcing Steel Institute Specifications. "Masonry Blocks" or "Plastic <br /> Protected" bar supports shall be used. Special support systems shall be <br /> designed by the Contractor and submitted to the Engineer for review. <br /> 3. Tie wire shall be black annealed wire, not less than 16 gauge; and shall be <br /> of suitable quality for securing reinforcement in place. <br /> F. Form Oil <br /> 1. Form release agent shall be a commercial product of proven performance <br /> that will prevent adhesion of the concrete to the forms and will not <br /> penetrate,stain or adversely affect concrete surfaces. The material shall not <br /> impede wetting of concrete surfaces to be damp-cured nor impair <br /> subsequent surface treatments which depend upon bond or adhesion. <br /> G. Curing Materials <br /> 1. Waterproof paper, polyethylene sheeting, or polyethylene-coated burlap <br /> shall conform to ASTM C171. <br /> 2. Liquid membrane-forming curing compound shall conform to ASTM C309, <br /> Type 1-D,Class B. Wax base or wax-resin base curing compounds shall not <br /> be permitted. <br /> H. Forming <br /> 114-910345 CONCRETE CONSTRUCTION <br /> Climax CAVR Shaft Closure Project 03 30 00 SPE-9 <br />