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ST. BARBARA CATHOLIC SCHOOL TASK 2 75-24272-01 DIOCESE OF ORANGE SEPTEMBER 12TH, 2024 SANTA ANA, CA BID & PERMIT SET CONCRETE PAVING 321313 - 9 each joint edge with a jointer tool. Carefully remove strips or caps of two-piece assemblies after concrete has hardened. Clean groove of loose debris. C. Construction Joints: Set construction joints at side and end terminations of paving and at locations where paving operations are stopped for more than 1/2 hour, unless paving terminates at isolation joints. 1. Continue reinforcement across construction joints unless indicated otherwise. Do not continue reinforcement through sides of strip paving unless indicated. 2. Provide tie bars at sides of paving strips where indicated. 3. Use bonding agent on existing concrete surfaces that will be joined with fresh concrete. D. Isolation Joints: Form isolation joints of preformed joint filler strips abutting concrete curbs, catch basins, manholes, inlets, structures, walks, other fixed objects, and where indicated. E. Expansion Joints: Form expansion joints of preformed joint filler strips. 1. Install dowel bars and support assemblies at joints where indicated. When no sleeves are used, lubricate or asphalt-coat one half of dowel length to prevent concrete bonding to one side of joint. 2. 3. Where spacing is not shown, locate expansion joints at 32-foot maximum spacing or less to fit the control joints pattern. F. Installation of joint fillers and sealants is specified in Section "Joint Sealants". 1. Extend joint fillers full width and depth of joint, not less than 1/2 inch or more than 1 inch below finished surface where joint sealant is indicated. Place top of joint filler flush with finished concrete surface when no joint sealant is required. 2. Furnish joint fillers in one-piece lengths for full width being placed wherever possible. Where more than one length is required, lace or clip joint filler sections together. 3. Protect top edge of joint filler during concrete placement with a metal, plastic, or other temporary preformed cap. Remove protective cap after concrete has been placed on both sides of joint. G. Where plastic "zip strips" are used to construct concrete joints, cut and remove, as a minimum, the top 1/4 inch of these strips after concrete has cured, and coordinate installation of joint filler as specified in Section “Joint Sealants”. 3.5 CONCRETE PLACEMENT A. Inspection: Before placing concrete, inspect and complete formwork installation, reinforcing steel, and items to be embedded or cast in. Notify other trades to permit installation of their work.