New PDF release: AWWA standard for cement-mortar protective lining and

By American Water Works Association.; American National Standards Institute

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Additional resources for AWWA standard for cement-mortar protective lining and coating for steel water pipe : 4 in. and larger-- shop applied

Sample text

1 Reinforcement. The reinforcement shall conform to the provisions of Sec. 1, except that the reinforcement shall be applied over the 3/8-in. 5-mm) thick first layer of cement mortar. 2 Application. The application shall conform to the provisions of Sec. 1 with the exception that hand application may be substituted for --`,,`,,`,`````,````,`,`,,``,,,-`-`,,`,,`,`,,`--- Copyright American Water Works Association Provided by IHS under license with AWWA No reproduction or networking permitted without license from IHS Licensee=Earth Tech Inc/5906698001, User=Yanez, Simon Copyright © 2008 American Water Works Rights Not for Association.

19 mm) cement–mortar coating may be applied in a single application if the provisions of Sec. 1 are met. The cement mortar shall be projected at high velocity against the exterior surfaces of the pipe, or shall be applied by an equivalent method, to produce a hard coating of the specified thickness. The cement–mortar coating thickness shall be checked on each size of pipe before removing the pipe from the coating machine. 2 Mix water. Mix water shall conform to the provisions of Sec. 2. 3 Placement temperature.

3 Centrifugal test cylinders. Centrifugally spun test cylinders may be substituted for cement–mortar test cylinders, at the option of the manufacturer. Test cylinders shall be spun about their longitudinal axes in 6-in. (150-mm) diameter by 12-in. (300-mm) long steel molds at a speed that will simulate the compaction of mortar in the lining to produce a spun-cylinder wall thickness of approximately 1½ in. (38 mm). The net cross-sectional area of the hollow cylinder shall be used to determine its compressive strength.

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AWWA standard for cement-mortar protective lining and coating for steel water pipe : 4 in. and larger-- shop applied by American Water Works Association.; American National Standards Institute


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