Portland cement clinker, the binding agent in most cements, is produced by heating a mixture of raw materials containing primarily calcium carbonate (from limestone) and aluminosilicates (from clay or shale) in a kiln. Limestone makes up the largest proportion of the raw mix, providing the necessary calcium oxide.
Which of the following is the main ingredient of cement?
Asked in BPSC Prelims Exam 67th Cancelled · Topic: Metals, Minerals, Ores: Properties, Uses (Uses of common metals and their compounds in industries and daily life)
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