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AWWA C602-00
- Cement-Mortar Lining of Water Pipelines in Place-4 In. (100 mm) and Larger
- standard by American Water Works Association, 01/01/2001
- Publisher: AWWA
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This standard covers the requirements for the materials and application of a cement-mortar lining to the inside surface of 4-in. (100-mm) and larger new and old steel, ductile-iron, and cast-iron water pipelines that have been previously installed, as well as related work. The application requirements are: that the lining of all straight pipe sections and long radius bends shall be accomplished by a machine that progresses uniformly through the pipe, applies cement mortar against the pipe surfaces, and is provided with an attachment for mechanically troweling the mortar to obtain a smooth lining of uniform thickness with smooth transitions over joints; and that the lining of bends, specials, and areas adjacent to valves shall be machine sprayed and hand troweled or, where machine placement is impractical, shall be performed manually.