NEET2020Chemistrys Block ElementsActual
What is the role of gypsum, CaSO 4 . 2 H 2 O in setting of cement? Identify the correct option from the following:
Options
- Ato fasten the setting process
- Bto provide water molecules for hydration process
- Cto help to remove water molecules
- Dto slow down the setting process
Correct answer
D. to slow down the setting process
Step-by-step solution
The purpose of adding gypsum is only to slow down the process of setting of cement so that it gets sufficiently hardened