DIVISION 1 - GENERAL REQUIREMENTS - IDEAS-EC

C. Placement: Place reinforcement accurately as shown. Adequately secure reinforcement in position byconcrete or metal chairs and spacers, in accordance with CRSI Manual of Standard Practice. Distancebetween the steel and the surface, as shown; otherwise, in accordance with the CRSI Manual. Inwalls, use bolsters or chairs between form and reinforcement to prevent lateral displacement ofreinforcement and to ensure proper concrete cover.D. Placing bars in fresh concrete as the Work progresses (stabbing), and adjusting bars during theplacement of concrete shall not be permitted.E. Splices:1. Bar laps shall be in contact and securely tied.2. Locate splices of reinforcement as shown. For any splices not shown, provide splice lengthas called for on the Drawings or in accordance with ACI 318.F. Reinforcement shall be continuous around corners.G. Bars shall not be field bent unless otherwise approved by the Project Manager. Bars shall not be bentor straightened in a manner that will damage the bars. The use of heat to bend or straighten bars shallnot be permitted.H. Welding of reinforcing bars is not permitted without written permission of the Project Manager.I. Inspection: After reinforcement has been placed, it shall be inspected prior to placing the concrete.J. Condition of Surfaces: At time concrete is placed, all metal reinforcement shall be free from rust,scale, frost, or other coatings that would destroy or reduce the bond.3.3 JOINTS AND EMBEDDED ITEMSA. Construct all joints true to line with faces perpendicular to surface.B. Construction Joints: Locate and install construction joints where shown.1. Obtain approval for joints not shown and locate them where they least impair the strength ofthe structure. Make joints perpendicular to the main reinforcement.2. Continue all reinforcing steel across construction joints.3. Use bonding agent at joints between fresh concrete and existing or fully cured, hardenedconcrete. Clean surfaces of laitance, coatings, loose particles, and foreign matter. Applybonding agent in accordance with manufacturer's instructions. Bonding agent shall beDayton Superior, Day-Chem Ad Bond (J-40) or approved equal.C. Other Embedded Items, Penetrations, and Blockouts:1. Before concreting, place all required sleeves, inserts, anchor bolts, and embedded items.Anchor to prevent floatation and displacement.2. Give all trades whose work is related to the concrete ample notice and opportunity tointroduce embedded items before concrete is placed.3. Position embedded items accurately and support them against displacement. Fill voids insleeves, and inserts, and anchor slots temporarily with readily removable material to preventthe entry of concrete.03300 - 904/07 CAST-IN-PLACE CONCRETE