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AWWA C104/A21.4-2022
Cement-Mortar Lining for Ductile Iron Pipe and Fittings
The purpose of this standard is to provide the minimum requirements for shop-applied cement–mortar linings for ductile-iron pipe and ductile-iron and gray-iron fittings for potable water, raw water, wastewater, and reclaimed water systems, including requirements for cement, sand, water, and mortar; surface of pipe and fittings for lining; method and thickness of lining; and curing.
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AWWA: American Water Works Association [awwa]
AWWA: American Water Works Association [awwa]