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DocuSign Envelope ID:070B6BC7-CDE2-4AO8-BE62-07FA6BFDO53B <br /> 11/20/2020 <br /> 3.2 PREPARATION <br /> A. Remove loose material from compacted subbase surface immediately before placing concrete. <br /> 3.3 EDGE FORMS AND SCREED CONSTRUCTION <br /> A. Set, brace, and secure edge forms, bulkheads, and intermediate screed guides to required lines, <br /> grades, and elevations. Install forms to allow continuous progress of work and so forms can <br /> remain in place at least 24 hours after concrete placement. <br /> B. Clean forms after each use and coat with form-release agent to ensure separation from concrete <br /> without damage. <br /> 3.4 STEEL REINFORCEMENT INSTALLATION <br /> A. General: Comply with CRSI's "Manual of Standard Practice" for fabricating, placing, and <br /> supporting reinforcement. <br /> B. Clean reinforcement of loose rust and mill scale, earth, ice, or other bond-reducing materials. <br /> C. Arrange, space, and securely tie bars and bar supports to hold reinforcement in position during <br /> concrete placement. Maintain minimum cover to reinforcement. <br /> D. Install welded-wire reinforcement in lengths as long as practicable. Lap adjoining pieces at least <br /> one full mesh, and lace splices with wire. Offset laps of adjoining widths to prevent continuous <br /> laps in either direction. <br /> 3.5 JOINTS <br /> A. General:Form construction,isolation,and contraction joints and tool edges true to line,with faces <br /> perpendicular to surface plane of concrete.Construct transverse joints at right angles to centerline <br /> unless otherwise indicated. <br /> 1. When joining existing paving,place transverse joints to align with previously placed joints <br /> unless otherwise indicated. <br /> B. Construction Joints: Set construction joints at side and end terminations of paving and at locations <br /> where paving operations are stopped for more than one-half hour unless paving terminates at <br /> isolation joints. <br /> 1. Continue steel reinforcement across construction joints unless otherwise indicated. Do not <br /> continue reinforcement through sides of paving strips unless otherwise indicated. <br /> 2. Provide tie bars at sides of paving strips where indicated. <br /> 3. Butt Joints: Use bonding agent at joint locations where fresh concrete is placed against <br /> hardened or partially hardened concrete surfaces. <br /> 4. Keyed Joints: Provide preformed keyway-section forms or bulkhead forms with keys <br /> unless otherwise indicated. Embed keys at least 1-1/2 inchesinto concrete. <br /> 32 13 13 CONCRETE PAVING Page 7 of 11 <br />