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PART 3 — EXECUTION <br />3.1 PREPARATION <br />A. Remove all mud, oil, loose rust, mill scale, and other foreign materials that may reduce <br />bond of the concrete to the steel reinforcing. <br />B. Rust or mill scale that is "tight" will be permissible without cleaning or brushing provided <br />weights, dimensions, cross-sectional area, and tensile properties meet requirements of <br />ASTM A615. <br />C. Notify Engineer when reinforcing is ready for inspection and allow sufficient time for <br />inspection prior to placing concrete. <br />3.2 INSTALLATION <br />A. Bar Placement. <br />1. Conform to CRSI "Placing Reinforcing Steel". <br />2. Conform to ACI -318 "Building Code Requirements for Reinforced Concrete". <br />B. Bar Supports. <br />1. Provide minimum number of supports as required by ACI -315. <br />2. Do not use pebbles, rocks, pieces of broken stone, common or face brick, metal pipe, or <br />wood blocks to support reinforcement. <br />3. Use solid concrete bricks to support rebar on ground. Use half (%2) concrete brick unless <br />otherwise directed by Engineer. <br />C. Placement Tolerances. <br />1. Clear distance to formed surface: See 3.2.D. Concrete Cover. <br />2. Clear distance to anchor bolts, form ties, or other embedded items: One -inch (1") <br />minimum. <br />3. Spacing between bars: Refer to ACI 318. <br />4. Top bars in slabs and beams: See 3.2.D. Concrete Cover. <br />5. Crosswise of members: Refer to ACI 318. <br />6. Lengthwise of members: Refer to ACI 318. <br />7. Maximum bar movement to avoid interference with other reinforcing steel, conduits, or <br />embedded items: One (1) bar diameter unless otherwise reviewed by Engineer. <br />D. Concrete Cover. <br />1. Except as otherwise indicated on the Drawings, provide the following minimum <br />concrete cover for reinforcement. <br />Concrete Reinforcement February 2017 03200-4 <br />