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<br />Copyright 2002 AIA <br /> <br />3.2 <br /> <br />3.3 <br /> <br />3.4 <br /> <br />3.5 <br /> <br />MASTERSPEC Short Form <br /> <br />08/02 (R 05/06) <br /> <br />B. <br /> <br />Construct formwork so concrete members and structures are of SIze, shape, alignment, <br />elevation, and position itldicated, within tolerance limits of ACI 117. <br /> <br />C. <br /> <br />[ Chamfer] [Do not chamfer] exterior corners and edges of permanently exposed concrete. <br /> <br />EMBEDDED ITEMS <br /> <br />A. <br /> <br />Place and secure anchorage devices and other embedded items required for adjoining work that <br />is attached to or supported by cast-in-place concrete. Use setting drawings, templates, <br />diagrams, instructions, and directions furnished with items to be embedded. <br /> <br />VAPOR RETARDERS <br /> <br />A. <br /> <br />Plastic Vapor Retarders: Place, protect, and repair vapor retarders according to ASTM E 1643 <br />and manufacturer's written instructions. <br /> <br />1. Lap joints 6 inch{:s (150 mm) and seal with manufacturer's recommended tape. <br /> <br />STEEL REINFORCEMENT <br /> <br />A. <br /> <br />General: Comply with eRSl's "Manual of Standard Practice" for placing reinforcement. <br /> <br />1. Do not cut or puncture vapor retarder. Repair damage and reseal vapor retarder before <br />placing concrete. <br /> <br />JOINTS <br /> <br />A. <br /> <br />General: Construct joints true to line with faces perpendicular to surface plane of concrete. <br /> <br />B. <br /> <br />Construction Joints: lnstall so strength and appearance of concrete are not impaired, at <br />locations indicated or as approved by Architect. <br /> <br />C. <br /> <br />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] <Insert depth> of concrete thickness as follows: <br /> <br />1. Grooved Joints: Form contraction joints after initial floating by grooving and fInishing <br />each edge of joint to a radius of 1/8 inch (3.2 1illn). Repeat grooving of contraction joints <br />after applying sUlface finishes. Eliminate groover tool marks on concrete surfaces. <br />2. Sawed Joints: Form contraction joints with power saws equipped with shatterproof <br />abrasive or diamond-rimmed blades. Cut 1/8-inch- (3.2-mm-) wide joints into concrete <br />when cutting action will not tear, abrade, or otherwise damage surface and before <br />concrete developB random contraction cracks. <br /> <br />D. Isolation Joints in Slab:;-on-Grade: After removing formwork, install joint-filler strips at slab <br />junctions with vertical Burfaces, such as column pedestals, foundation walls, grade beams, and <br />other locations, as indicated. <br /> <br />CAST -IN-PLACE CONCRETE <br /> <br />03300 - 6 <br />