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 How Cement Is Made

Cement manufacturing starts at a quarry where limestone and shale are mined, crushed and blended with sand, mill scale and clay. These raw materials are introduced into a rotary kiln where temperatures can exceed 2700 degrees Farenheit.

Under these conditions the raw materials experience chemical and physical changes to form clinker. Clinker and gypsum are introduced to a finish mill where they are ground until a desired fineness is achieved. Changes can be made to the raw materials, burning temperatures and finish mills to create different types of cement such as Type I, Type II, Type III, Type V, and Type N and S Masonry Cements.

Click here to view/download a brochure with a step-by-step overview of the cement making process.