Laserfiche WebLink
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 - 14 <br />C. Nondestructive Testing: Impact hammer, sonoscope, or other nondestructive device may be <br />permitted but shall not be used as the sole basis for acceptance or rejection. <br /> <br />D. Additional Tests: The testing agency will make additional tests of the concrete when test <br />results indicate slump, air entrainment, concrete strengths, or other requirements have not been <br />met, as directed by Architect. Testing agency may conduct tests to determine adequacy of <br />concrete by cored cylinders complying with ASTM C 42, or by other methods as directed. <br /> <br />E. Manufacturer's Field Service: When placing integral colored concrete, arrange for the <br />services of a qualified technical representative of the color pigment manufacturer, equipped <br />with wet-batch color control test devices to ensure concrete of uniform color and matching <br />approved mock-up. <br /> <br />3.10 REPAIRS AND PROTECTION <br /> <br />A. Remove and replace concrete paving that is broken, damaged, or defective, or does not meet <br />the requirements of this Section. Concrete which is not true to line and plane, which is not <br />thoroughly troweled and properly surfaced as required, which varies in excess of 1/4-inch <br />along a 10-foot straight edge, which is scuffed or has a rough top surface, except where <br />required, or which does not connect properly to adjoining work, does not slope as required for <br />drainage or is not properly cured, will be deemed defective. <br />1. General: Patch defective areas immediately following form removal. Remove <br />defective concrete to a width and depth necessary for proper patching, but in no case <br />less than 1 inch deep. Make the walls of the cut area perpendicular to the surface and <br />do not feather out the edge. Dampen the patch area and the adjacent area 6 inches <br />around the patch area. <br />2. Exposed concrete: Prepare a patching mortar of one part Portland cement, adjusted to <br />match the color of the surrounding concrete, and 2-1/2 parts sand with the least water <br />required to produce a workable mass. Re-work this mortar until it is the stiffest <br />consistency that will permit placing. Brush the patch area with a bond of neat cement <br />and water paste and apply patching mortar when the water sheen is off the bond. Strike <br />off the mortar slightly higher than the surrounding surface, let set for 1 hour and finish <br />flush with the surrounding surface. <br /> <br />B. Drill test cores where directed by Architect when necessary to determine magnitude of cracks <br />or defective areas. Fill drilled core holes in satisfactory pavement areas with Portland cement <br />concrete bonded to paving with epoxy adhesive. <br /> <br />C. Protect concrete from damage. Exclude traffic from paving for at least 14 days after <br />placement. When construction traffic is permitted, maintain paving as clean as possible by <br />removing surface stains and spillage of materials as they occur. <br /> <br />D. Maintain concrete paving free of stains, discoloration, dirt, and other foreign material. Sweep <br />concrete paving not more than 2 days prior to date scheduled for Substantial Completion <br />inspections. <br /> <br /> <br />END OF SECTION