Cement-mortar lining has a successful service history dating back to the late 1800s. It is the most common lining specified for steel pipe and fittings in the water transmission market and is applied in accordance with ANSI/AWWA C205. Virtually all steel pipes carrying potable water have a cement-mortar lining, and a significant portion of piping for other services such as raw water, non-septic sewage, salt water, and cooling water has a cement-mortar lining. Cement-mortar lining applied by AMERICAN is certified in accordance with NSF/ANSI Standard 61. 

Standard thicknesses for cement-mortar lining are defined in C205, but thicker lining is available from AMERICAN when needed. Be aware that increased lining thickness may affect the resulting pipe length or shipping costs due to the increased weight. Due to equipment limitations, shipment weight restrictions, and handling issues, factory applied cement-mortar lining is typically provided in nominal pipe diameters up to 120 inches. Cement-mortar lining for larger diameter pipe can be field applied in accordance with ANSI/AWWA C602

The factory-applied lining is placed by pumping a high slump cement-mortar mixture into a rotating pipe. Once the lining is placed along the full length of the pipe, the rotational speed is increased to consolidate the cement-mortar mixture and evacuate excess water. This process yields a dense mortar lining with a smooth surface. After the rotational application is complete, the lining is cured to achieve its required compressive strength.