Q. 13

By adding gypsum

Answer :

Gypsum is CaSO4.2H2O. Gypsum is added in 2-3% of weight to cement along with CaO (lime) and clay. Gypsum is added in order to increase the setting time of cement. Slowing the setting time of cement makes it harden sufficiently. The correct answer is (ii).

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

Describe the impoNCERT - Chemistry Part-II