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<br />High Rock Road Waste and Recycling Center Improvements 32 13 13 - 4 <br />Orange County, North Carolina JULY 2021 <br />DAA PN: R00592-213N <br /> <br />3.3 STEEL REINFORCEMENT <br />A. General: Comply with CRSI's "Manual of Standard Practice" for fabricating, <br />placing, and supporting reinforcement. <br />3.4 JOINTS <br />A. General: Form construction, isolation, and contraction joints and tool edgings <br />true to line with faces perpendicular to surface plane of concrete. Construct <br />transverse joints at right angles to centerline, unless otherwise indicated. <br />B. Construction Joints: Set construction joints at side an d end terminations of <br />pavement and at locations where pavement operations are stopped for more <br />than one-half hour unless pavement terminates at isolation joints. <br />C. Isolation Joints: Form isolation joints of preformed joint-filler strips abutting <br />concrete curbs, catch basins, manholes, inlets, structures, walks, other fixed <br />objects, and where indicated. <br />D. Contraction Joints: Form weakened-plane contraction joints, sectioning <br />concrete into areas as indicated. Construct contraction joints for a depth equal <br />to at least one-fourth of the concrete thickness to match jointing of existing <br />adjacent concrete pavement. <br />E. Edging: Tool edges of pavement, gutters, curbs, and joints in concrete after <br />initial floating with an edging tool to a 3/8-inch radius. Repeat tooling of edges <br />after applying surface finishes. Eliminate tool marks on concrete surfaces. <br />3.5 CONCRETE PLACEMENT <br />A. Moisten subbase to provide a uniform dampened condition at time concrete is <br />placed. <br />B. Comply with ACI 301 requirements for measuring, mixing, transporting, and <br />placing concrete. <br />C. Deposit and spread concrete in a continuous operation between transverse <br />joints. Do not push or drag concrete into place or use vibrators to move <br />concrete into place. <br />D. Screed pavement surfaces with a straightedge and strike off. <br />E. Commence initial floating using bull floats or darbies to impart an open textured <br />and uniform surface plane before excess moisture or bleed water appears on <br />DocuSign Envelope ID: BBF56E0A-3618-497E-AA70-92F097E8F598