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INDIAN RIVER COUNTY JULY 25, 2014 <br />INTERGENERATIONAL RECREATION CENTER 100% CONSTRUCTION DOCUMENTS <br />Sheet Vapor Retarders: Place, protect, and repair sheet vapor retarder according to <br />ASTM E 1643 and manufacturer's written instructions. <br />1. Lap joints 6 inches and seal with manufacturer's recommended tape. <br />B. Granular Course: Cover vapor retarder with fine -graded granular material, moisten, and <br />compact with mechanical equipment to elevation tolerances of plus 0 inch or minus 3/4 inch. <br />3.6 STEEL REINFORCEMENT <br />A. General: Comply with CRSI's "Manual of Standard Practice" for placing reinforcement. <br />1. Do not cut or puncture vapor retarder. Repair damage and reseal vapor retarder before <br />placing concrete. <br />B. Clean reinforcement of loose rust and mill scale, earth, ice, and other foreign materials that <br />would reduce bond to concrete. <br />C. Accurately position, support, and secure reinforcement against displacement. Locate and <br />support reinforcement with bar supports to maintain minimum concrete cover. Do not tack weld <br />crossing reinforcing bars. <br />D. Set wire ties with ends directed into concrete, not toward exposed concrete surfaces. <br />3.7 JOINTS <br />A. General: Construct joints true to line with faces perpendicular to surface plane of concrete. <br />B. Construction Joints: Install so strength and appearance of concrete are not impaired, at <br />locations indicated or as approved by Architect. <br />1. Place joints perpendicular to main reinforcement. Continue reinforcement across <br />construction joints unless otherwise indicated. Do not continue reinforcement through <br />sides of strip placements of floors and slabs. <br />2. Form keyed joints as indicated. Embed keys at least 1-1/2 inches into concrete. <br />3. Locate joints for beams, slabs, joists, and girders in the middle third of spans. Offset <br />joints in girders a minimum distance of twice the beam width from a beam -girder <br />intersection. <br />4. Locate horizontal joints in walls and columns at underside of floors, slabs, beams, and <br />girders and at the top of footings or floor slabs. <br />5. Use a bonding agent at locations where fresh concrete is placed against hardened or <br />partially hardened concrete surfaces. <br />6. Use epoxy -bonding adhesive at locations where fresh concrete is placed against <br />hardened or partially hardened concrete surfaces. <br />C. Contraction Joints in Slabs -on -Grade: Form weakened -plane contraction joints, sectioning <br />concrete into areas as indicated. Construct contraction joints for a depth equal to at least one- <br />fourth of concrete thickness as follows: <br />1. Sawed Joints: Form contraction joints with power saws equipped with shatterproof <br />abrasive or diamond -rimmed blades. Cut 1/8 -inch- wide joints into concrete when cutting <br />action will not tear, abrade, or otherwise damage surface and before concrete develops <br />random contraction cracks. <br />CAST -IN-PLACE CONCRETE 033000-13 <br />