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i <br />A. Cleaning <br />`• <br />'. 1. Before placing, ell reinforcement shall be thoroughly cleaned of rust, <br />mill scale or coatings, including ice, which would reduce or destroy <br />i the bond. <br />2. Reinforcement appreciably reduced in section shall not be used. <br />f 3. Following any substantial delay in the work, previously placed rein- <br />forcementleft for future bonding shall be inspected and cleaned. <br />(- B. Reinforcement shall not be cut with a torch or in such a manner as to alter <br />the mechanical properties of the reinforcement material. <br />C. Bars with kinks or bends not shown on the drawings shall not be placed. <br />3.02 Installation <br />r <br />A. Ties and supports <br />l 1. All steel reinforcement shall be accurately placed in the positions <br />(~ shown on the drawings and firmly held during the placing and setting <br />l of concrete. <br />2. Bars shall be tied at every intersection. <br />3. Wire tie ends shall point away from the form. <br />^ B. Splices <br />_ 1. All reinforcement shall be furnished in full lengths as indicated on the <br />drawings. <br />2. Splicing of bars, except where shown on the drawings, w>Zl not be <br />permitted without written approval of the Engineer. <br />3. Splices shall be staggered as far as possible. <br />4. Unless otherwise shown on the drawings, bars shall be lapped suf- <br />- ficiently to secure full bond, but in no case less than 30 diameters to <br />_ make the splice. The bars shall be placed in contact and wired <br />together. <br />5. Welding of reinforcing steel shall be done only if shown on the <br />drawings or authorized in writing. <br />6. Sheets of mesh or bar mat reinforcement shall overlap each other <br />- sufficiently to maintain a uniform strength, shell be securely fastened <br />at the ends and edges, and shall overlap at least one mesh in width. <br />7. No splicing of main bars in girders, beams, or slabs will be permitted. <br />03200-2 <br />