gypsum i
s add to cement is orde
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Gypsum is called the retarding agent of cement which is mainly used for regulating the setting time of cement and is an indispensable component. Without gypsum, cement clinker can condense immediately by mixing with water and release heat.
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- A small amount of gypsum is usually added at the final grinding stage in order to control the setting of the cement. Hence gypsum controls the rate of hardening of the cement. Hence the correct answer is (A) prolong hydration.
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