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ST. BARBARA CATHOLIC SCHOOL TASK 2 75-24272-01 <br />DIOCESE OF ORANGE SEPTEMBER 12TH, 2024 <br />SANTA ANA, CA BID & PERMIT SET <br /> <br />CONCRETE PAVING 321313 - 8 <br />2. Vertical Face on Longitudinal Axis: Not more than 1/4 inch in 10 feet. <br /> <br />C. Clean forms after each use and coat with form release agent as required to ensure separation <br />from concrete without damage. <br /> <br />3.3 PLACING REINFORCEMENT <br /> <br />A. General: Comply with Concrete Reinforcing Steel Institute's recommended practice for <br />"Placing Reinforcing Bars" for placing and supporting reinforcement. <br /> <br />B. Clean reinforcement of loose rust and mill scale, earth, or other bond-reducing materials. <br />Where there is delay in placing concrete after reinforcement is in place, bars shall be re <br />inspected and cleaned when necessary. <br /> <br />C. Any bar showing cracks after bending shall be discarded. <br /> <br />D. Arrange, space, and securely tie bars and bar supports to hold reinforcement in position during <br />concrete placement. Maintain minimum cover to reinforcement. <br /> <br />E. Install fabricated bar mats in lengths as long as practicable. Handle units to keep them flat and <br />free of distortions. Straighten bends, kinks, and other irregularities or replace units as required <br />before placement. Set mats for a minimum 2-inch overlap to adjacent mats. <br /> <br />F. After forms have been coated with form release agent, but before concrete is placed, <br />reinforcing steel anchors shall be securely wired in the exact position called for, and shall be <br />maintained in that position until concrete is placed and compacted. Chair bars and supports <br />shall be provided in a number and arrangement satisfactory to the Architect. <br />3.4 JOINTS <br /> <br />A. General: Construct contraction, construction, and isolation joints true to line with faces <br />perpendicular to surface plane of concrete. Construct transverse joints at right angles to the <br />centerline, unless indicated otherwise. <br />1. When joining existing paving, place transverse joints to align with previously placed <br />joints, unless indicated otherwise. <br />2. Make joints, including sawed joints, full depth required and from edge to edge of <br />paving. <br /> <br />B. Control Joints: Provide weakened-plane control joints, sectioning concrete into areas as shown <br />on Drawings. Construct control joints for a depth equal to at least 1/4 of the concrete thickness, <br />as follows: <br /> <br />1. Tooled Joints: Form control joints in fresh concrete by grooving and finishing each <br />edge of joint with a radiused jointer tool. <br />2. Sawed Joints: Form control joints with power saws equipped with shatterproof abrasive <br />or diamond-rimmed blades. Cut 1/8-inch-wide joints into hardened concrete when <br />cutting action will not tear, abrade, or otherwise damage surface and before <br />development of random contraction/shrinkage cracks. <br />3. Inserts: Form control joints by inserting pre-molded plastic, hardboard, or fiberboard <br />strips into fresh concrete until top surface of strip is flush with paving surface. Radius