By adding gypsum to cement...

1.	By adding gypsum to cement...
Answer» setting TIME of cement becomes less. setting time of cement increases. colour of cement becomes light. shining surface is obtained. Solution :Gypsum `(CaSO_(4)*5H_(2)O)` is added to cement to increase the setting time of cement so that it gets HARDENED. Setting of cement is an EXOTHERMIC process.

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