Cement-Mortar Linings for Ductile Iron Pipe: This publication discusses the historical development of cement-mortar linings. Methods of application as well as properties of cement-mortar linings are also discussed. The hydraulic advantages of Ductile Iron pipe with cement-mortar linings are discussed and tables are provided which detail the results of 64 flow tests that have been conducted on pipe ranging in service age from new to 59 years.

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Hydraulic Analysis of Ductile Iron Pipe: In normally specified pipe sizes, cement-mortar lined Ductile Iron pipe has an internal diameter that is larger than the nominal pipe size. For most substitute pipe materials, the inside diameter is equal to or less than the nominal diameter. When this difference is taken into account, significant savings can result from the use of Ductile Iron pipe. This brochure discusses the two most common ways that these savings can be realized: annual pumping costs and equivalent headloss pipelines.