Which of the following raw materials is used in cement making?
A. Clay
B. Lime stone
C. Sulphur
D. Gypsum
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Answer:
D. Gypsum is used in cement making. HOPE IT HELPS YOU
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B. Limestone. Limestone is used in cement because it require very less energy to get into perfect particle distribution, it is easy to grind, doesn't need extra processing and it acts like a source of calcium which allows it to join with powder.
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