Question

How much lime stone is required for 1 tonne of ordinary portland cement?

Answer 1

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Generally, the composition for cement is in the region of 67% CaO, 22% SiO2, 5%

A12O3, 3% Fe2O3 and 3% other components. The limestone is ~90%, and clay ~8%. The actual usage for limestone and clay is based on the mineral composition for the clinker. For the similarity of the composition of clay and laterite, it can be used as clay, I think.

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Answer 2

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