Calavera Cement Co

12667 Alcosta Blvd
San Ramon CA 94583
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<p>Calavera Cement Co is a world leader in providing cement products for construction. The company manufactures cement and other construction materials such as mixed concrete, aggregates, concrete blocks, concrete pipes and pre-stressed concrete units. Its products are used in virtually every building structure, from high-rises to homes. The company's cement is a mix of limestone and shale, which is crushed and blended and then mixed with sand, mill scale and clay. It is then fired in a rotary kiln where temperatures can exceed 2,700 degrees Fahrenheit. The fired mixture is then ground to the desired consistency to create different kinds of cement, depending on the strength and durability needed.</p>