The chemical composition of cement is: A) Limestone, Clay and Gypsum B) Limestone and Clay C) Limestone and Gypsum D) Clay and Gypsum

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Muskan Anand

2 years ago

The cement contains 35 to 40 percent lime, 40 to 50 percent alumina, up to 15 percent iron oxides, and preferably not more than about 6 percent silica. The principal cementing compound is calcium aluminate (CaO · Al2O3).

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