2022-06-24_PERMIT FILE - C1980007 (2)

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i i- '~-- 2. Construction Activities a. Care shall be exercised to avoid injury to green concrete from vibration created by blasting and pile driving operations or movement of equipment in the vicinity of the structure, encl the disturbance of the formwork or protruding reinforcement. i b. Concrete shall be protected from the heat of an open fire. ~?, watchman shall be provided •at the structure throughout any period in which open-Flame heaters are operated in the vicinity •- of concrete, particularly concrete from which combustible: formwork has not been removed. r. c. After the concrete in finished surfaces has begun to set, it shall not be walked upon or otherwise disturbed for a minimum ~ of 24 hours. (~' K. Exposed Surfaces -Waterproofing 1. All exposed concrete surfaces below final grade shall be waterproofed r with two (2) coats of an approved bituminous waterproofing compound L mopped on a clean dry surface. 2. Waterproofing shall not be splashed on any surfaces which wi71 be: I' above grade. V 3. Application shall conform strictly to the manufacturer's instructions. ~_ 3.03 Field Quality Control A. General Testing of the concrete shall be performed by an approved Certified Testin@; Laboratory. The Contractor will be responsible for the cost of all concrete: I` tests and shall include the cost of concrete testing in his unit price for cast•- in-place concrete. The Engineer will be provided with five (5) copies of al'i test reports promptly after the results are determined. 1 B. Strength Tests 1. One set of six standard cylinders for test purposes will be taken from L_ each 50 cubic yards or fraction thereof, or each day's pour, whichever is less. L 2. Test specimens will be made in accordance with ASTM C31 and will be tested in accordance with ASTM C39. L 3. The minimum compressive strength of concrete specimens at 7 days. ~L -, 03300-14 L