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PART 3 EXECUTION <br /> 3.1 INSTALLATION <br /> A. Clean steel reinforcement to remove loose rust and mill scale,earth,ice and other foreign <br /> materials which will reduce or destroy bond with concrete. <br /> B. Install concrete reinforcement in accordance with reviewed shop drawings and CRSI <br /> recommended practices. Do not displace or damage moisture barrier. <br /> C. Position,support,and secure steel reinforcement against displacement by formwork, <br /> construction,or concrete placement operations. <br /> D. Locate and support steel reinforcing by metal bolsters,spacers,chairs and hangers. <br /> Securely tie bars and supports together with 16 gauge wire to hold steel reinforcement <br /> accurately in position during concrete placement operations. Set wire ties so that twisted <br /> ends are directed away from concrete surfaces. <br /> E. Provide bar supports in sufficient number and heavy enough to carry steel they support. <br /> Place no bar more than 2 inches beyond last leg of continuous bar support. Do not use bar <br /> supports to support runways for concrete buggies, or similar loads. <br /> F. Steel reinforcement partially embedded in concrete shall not be field bent,except as <br /> indicated or permitted by Architect. <br /> G. For walls reinforced on both faces,provide spreader bars and chairs to surfaces of forms <br /> on each side at spacings not to exceed 8 feet in either direction.For walls with single <br /> layer of reinforcing,provide chairs each side at spacings not to exceed 8 feet in either <br /> direction. <br /> H. Splice bars only where shown or noted. Comply with requirements of ACI 318 for <br /> minimum lap of bars,unless noted otherwise. Weld splices in bars larger than#11,or <br /> where#11 bars are spliced to larger size bars. Comply with requirements of AWS D1.4 <br /> for welding of bars. <br /> I. Install smooth bar dowels in concrete slab joints where shown. Center dowels on joint, <br /> positioned at center of slab depth and aligned perpendicular to face of joint both vertically <br /> and horizontally. Within 30 minutes of placement of adjacent concrete along doweled <br /> joints apply thin uniform coating of liquid asphalt MC-250 or road tar RT-6 on free ends <br /> of dowels. <br /> J. Exposed reinforcing steel after concrete has been placed,indicating steel is not properly <br /> located,will be sufficient cause for rejection,removal and replacement of concrete <br /> section. <br /> K. Apply fiber reinforcing in accordance with manufacturers recommendations. <br /> ADDENDUM#1 <br /> 1607.001 -ORONO ICE ARENA(CP-2) Page 03200-4 <br />