Knowledge Downloads Literature Request Magazine Product Information White Papers News Products Glossary Cement Cement is a mixture of compounds, consisting mainly of silicates and aluminates of calcium, formed out of calcium oxide, silica, aluminum oxide and iron oxide. Cement is manufactured by burning a mixture of limestone and clay at high temperatures in a kiln, and then finely grinding the resulting clinker along with gypsum. When mixed with sand, gravel, and water in proportions that depend upon the application, it sets to a dense, rock-like material, called concrete or mortar. Additives may accelerate or retard the set, increase strength, or make it resistant to acid, sulphate, shrinkage, or freeze-thaw cracking.
Quality control is essential during manufacturing.
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