What is the purpose of adding gypsum $(CaSO_4 \cdot 2H_2O)$ to cement?
- ATo facilitate the hydration of cement
- BTo speed up the process of setting
- CTo slow down the process of setting
- DTo give a hard mass
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Similar Questions
Match List-$I$ with List-$II$ for the compositions of substances and select the correct answer using the code given below the lists.
List-$I$ Substances List-$II$ Composition $A$. Plaster of paris $i$. $CaSO_4.2H_2O$ $B$. Epsomite $ii$. $CaSO_4.\frac{1}{2}H_2O$ $C$. Kieserite $iii$. $MgSO_4.7H_2O$ $D$. Gypsum $iv$. $MgSO_4.H_2O$ $v$. $CaSO_4$
| List-$I$ Substances | List-$II$ Composition |
|---|---|
| $A$. Plaster of paris | $i$. $CaSO_4.2H_2O$ |
| $B$. Epsomite | $ii$. $CaSO_4.\frac{1}{2}H_2O$ |
| $C$. Kieserite | $iii$. $MgSO_4.7H_2O$ |
| $D$. Gypsum | $iv$. $MgSO_4.H_2O$ |
| $v$. $CaSO_4$ |
MediumAIIMS 2015
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