Gypsum is added to clinker during cement manu | vedclass

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Question

(A) During the manufacture of cement,$2-3\%$ of gypsum $(CaSO_4 \cdot 2H_2O)$ is added to the clinker. This addition is done to slow down the process

Vedclass · Accepted Answer

decrease the rate of setting of cement

Vedclass · Answer

(A) During the manufacture of cement,$2-3\%$ of gypsum $(CaSO_4 \cdot 2H_2O)$ is added to the clinker. This addition is done to slow down the process of hydration of the tricalcium aluminate $(C_3A)$,which is responsible for the initial setting of cement. By slowing down this reaction,the setting time of the cement is increased,allowing sufficient time for mixing and placing the concrete.

Gypsum is added to clinker during cement manufacture to:

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