Cement Lined Steel Pipes are a metal pipes coated with a cement mixture of mortar. The mixture could have different compositions. But the mixture could be applied locally by hand or with machines. Depending on the nominal size of the pipes, the thickness of the cement mixture or the mortar will vary.
The AWWA C205 Cement Mortar Lining is a standard of the cement applied as coating to the pipe. There are different standards and grades of the cement that govern the quality, thickness and diameter of the coated pipes and cement. The c205 standard covers pipes from 2 inches to 24 inches in nominal pipes size.