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DocuSign Envelope ID:D561B1AE-DF34-4907-AD06-AOEB37BBE427 <br /> CHAPEL HILL ORANGE COUNTY VISITORS BUREAU August 12,2020 <br /> 308 WEST FRANKLIN,CHAPEL HILL,NC <br /> 3.2 EMBEDDED ITEMS <br /> A. Place and secure anchorage devices and other embedded items required for adjoining work <br /> attached to or supported by cast-in-place concrete. Use setting drawings, templates, diagrams, <br /> instructions, and directions furnished with items to be embedded. <br /> 3.3 VAPOR RETARDERS <br /> A. Install, protect, and repair vapor retarders according to ASTM E 1643; place sheets in position <br /> with longest dimension parallel with direction of pour. <br /> 1. Lap joints 6 inches (150 mm) and seal with manufacturer's recommended adhesive or <br /> joint tape. <br /> 3.4 STEEL REINFORCEMENT <br /> A. Comply with CRSI's "Manual of Standard Practice" for fabricating, placing, and supporting <br /> reinforcement. <br /> 1. Do not cut or puncture vapor retarder. Repair damage and reseal vapor retarder before <br /> placing concrete. <br /> 3.5 JOINTS <br /> A. General: Construct joints true to line with faces perpendicular to surface plane of concrete. <br /> B. Construction Joints: Locate and install so strength and appearance of concrete are not impaired, <br /> at locations indicated or as approved by Architect. <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. Grooved Joints: Form contraction joints after initial floating by grooving and finishing <br /> each edge of joint with groover tool to a radius of 1/8 inch(3.2 mm). Repeat grooving of <br /> contraction joints after applying surface finishes. Eliminate groover marks on concrete <br /> 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 develops random contraction cracks. <br /> D. Isolation Joints: Install joint-filler strips at junctions with slabs-on-grade and vertical surfaces, <br /> such as column pedestals, foundation walls, grade beams, and other locations,as indicated. <br /> 1. Extend joint fillers full width and depth of joint, terminating flush with finished concrete <br /> surface,unless otherwise indicated. <br /> MISCELLANEOUS CAST-IN-PLACE CONCRETE 033053 - 5 <br />