Cement-mortar lined ductile iron pipe is a ductile iron pipe with cement lining on the inside surface, and is commonly used for water distribution. Cement-mortar lined ductile iron pipe is governed by standards set forth by DIPRA, and was first used in 1922 in Charleston, South Carolina.

What is the meaning of mortar lined?

A cement mortar liner is a type of pipelining which consists of a spray-on cement-based coating applied to the inner walls of small to medium diameter pipes. ... Cement liners are effective for corrosion protection, structural damage repair and leak protection.

What is cement lined pipe used for?

The purpose of installing a cement/mortar lining to the interior wall of the pipe is to reduce the process of tuberculation inside the pipe network. The cement/mortar lining provides an area of high pH near the pipe wall and provides a barrier between the water and the pipe, reducing its susceptibility to corrosion.