How Cement Is Made - The Portland Cement AssociationCommon materials used to manufacture cement include line, shells, and chalk or marl combined with shale, clay, slate, blast furnace slag, silica sand, and.what is clay in cement,3.3 - Raw Materials for Cement ManufactureManufacture and Composition of Portland Cement ... The ingredients listed above include both naturally occurring materials such as line and clay, and.Chapter 1 - Introduction to Cement ProductionAudit Procedures for Cement Production Tax. Revised . Clay and clay-like materials, such as shale, slag from blast furnaces, bauxite, iron ore, silica, sand, etc.
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