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Updated On: October 22, 2013
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. The purpose of this standard is to define the minimum requirements for cement-mortar lining of water pipelines, 4 in. (100 mm) and larger, in place, including materials, design, and methods for construction. The major revisions in this editions of ANSI/AWWA C602-95 include the following: the format has been changed to AWWA standard style; the title of the standard has been revised; definitions (Sec. 3) have been revised; Sec. 5.2.1 (old Sec. 5.1) and Sec. 5.3.1 (old Sec. 9.1) have been revised; and, Table 1 on recommended thicknesses of cement-mortar linings has been revised.
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