ANSWER:
Gypsum in cement helps to retard the setting time of cement, thus allowing the work for which the cement is required to be done before setting and hardening take place. The percentage of Gypsum used is 2%.
ANSWER:
Gypsum in cement helps to retard the setting time of cement, thus allowing the work for which the cement is required to be done before setting and hardening take place. The percentage of Gypsum used is 2%.
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