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DocuSign Envelope ID:070B6BC7-CDE2-4AO8-BE62-07FA6BFDO53B <br /> 11/20/2020 <br /> 5. Doweled Joints: Install dowel bars or plates and support assemblies at joints where <br /> indicated. Lubricate or coat with asphalt one-half of the dowel length to prevent concrete <br /> bonding to one side of the joint. <br /> C. Isolation Joints: Form isolation joints of preformed joint-filler strips abutting concrete curbs, <br /> catch basins,manholes, inlets, structures, other fixed objects, and where indicated. <br /> 1. Locate expansion joints at intervals of 50 feet unless otherwise indicated. <br /> 2. Extend joint fillers full width and depth of joint. <br /> 3. Terminate joint filler not less than 1/2 inchor more than 1 inchbelow finished surface if <br /> joint sealant is indicated. <br /> 4. Place top of joint filler flush with finished concrete surface if joint sealant is not indicated. <br /> 5. Furnish joint fillers in one-piece lengths. Where more than one length is required, lace or <br /> clip joint-filler sections together. <br /> 6. During concrete placement, protect top edge of joint filler with metal, plastic, or other <br /> temporary preformed cap. Remove protective cap after concrete has been placed on both <br /> sides of joint. <br /> D. Contraction Joints: Form weakened-plane contraction joints, sectioning concrete into areas as <br /> indicated. Construct contraction joints for a depth equal to at least one-fourth of the concrete <br /> thickness,as follows or every 10 feet. <br /> 1. Saw Joints:Form contraction joints with a power saw equipped with a shatterproof abrasive <br /> or diamond-rimmed blade. Cut 1/8 inch wide joint into concrete when cutting action will <br /> not tear, abrade, or otherwise damage surface and before developing random contraction <br /> cracks. <br /> a. Tolerance: Ensure that sawed joints are within 3 inches either way form centers of <br /> dowels. <br /> E. Edging: After initial floating, tool edges of paving, gutters, curbs, and joints in concrete with an <br /> edging tool to a 3/8-inch radius.Repeat tooling of edges after applying surface finishes.Eliminate <br /> edging-tool marks on concrete surfaces. <br /> 3.6 CONCRETE PLACEMENT <br /> A. Before placing concrete, inspect and complete formwork installation, steel reinforcement, and <br /> items to be embedded or cast-in. <br /> B. Remove snow,ice,or frost from subbase surface and steel reinforcement before placing concrete. <br /> Do not place concrete on frozen surfaces. <br /> C. Moisten subbase to provide a uniform dampened condition at time concrete is placed. Do not <br /> place concrete around manholes or other structures until they are at required finish elevation and <br /> alignment. <br /> D. Comply with ACI 301requirements for measuring,mixing,transporting, and placing concrete. <br /> E. Do not add water to concrete during delivery or at Project site.Do not add water to fresh concrete <br /> after testing. <br /> 32 13 13 CONCRETE PAVING Page 8 of 11 <br />