Q.

Which is/ are the important raw materials in cement industry?

A. Limestone
B. Gypsum and Clay
C. Clay
D. Limestone and Clay
Answer» D. Limestone and Clay
Explanation: Limestone Claimed Clay Cement is a low-carbon alternative to the standard Portland cement. LC3 can reduce CO2 emissions related to cement manufacturing of cement by reducing the amount of clinker, replacing it with limestone and claimed clays.
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