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t, <br />n <br />60 <br />OR <br />r <br />M <br />r <br />03200. CONCRETE REINFORCEMENT <br />Specific S General Requirements <br />03200.1. DESCRIPTION: Furnish and install all steel for reinforcement of <br />concrete as required on the plans and specifications. <br />03200.2. QUALITY ASSURANCE: Comply with pertinent provisions of the follow- <br />ing standards: <br />(1) Concrete Reinforcing Steel Institute's "Manual of Standard Practice". <br />(2) American Concrete Institute "Building Code Requirements for Reinforced <br />Concrete" (ACI 318). <br />03200.3. PRODUCT HANDLING: Store reinforcement at the job site in a manner <br />to prevent damage from drainage and accumulation of dirt and excessive rust. <br />03200.4. MATERIALS: Reinforcement steel shall conform to ASTM A615, Grade 60. <br />Welded wire fabric shall conform to ASTM A185. <br />Bolsters, chairs, spacers, and other devices for spacing, supporting, and <br />fastening reinforcement in place shall be plastic coated wire bar type <br />supports. Bar supports shall conform to the "Bar Support Specifications" in <br />the "Manual of Standard Practice" by CRSI. Do not use wood or other <br />unacceptable materials. <br />For slabs on grade, use supports with earth bearing bases. <br />Tie wire shall be black annealed wire, 16 gauge or heavier. <br />03200.5. FABRICATION: Fabricate reinforcing bars to conform to required <br />shapes and dimensions, with fabrication tolerances complying with CRSI Manual. <br />Do not rebend or straighten reinforcement steel. <br />03200.6. INSTALLATION: The placement of reinforcing steel and supports shall <br />r Aform to the recommended practices in "Placing Reinforcing Bars" in the CRSI <br />manual. <br />Clean reinforcement to remove loose rust and mill scale, mortar, earth, it or <br />other non-metallic coatings that adversely affect the bond with concrete. <br />Position, support, and secure reinforcement against displacement by formwork, <br />construction, or concrete placement operations. Locate and support reinforc- <br />ing by metal chairs, runners, bolsters, spacers and hangers, as required. <br />Place reinforcement to obtain minimum coverages for concrete protection. <br />Arrange, space and securely tie bars and bar supports together with 16 gage <br />wire t- hold reinforcement accurately in position during concrete placement <br />operations. Set wire ties so that twisted ends are directed away frem exposed <br />concrete surfaces. <br />01 <br />0-9693b <br />