Question
Question: Setting of cement is an....
Setting of cement is an.
A
Exothermic reaction
B
Endothermic reaction
C
Neither exothermic nor endothermic
D
None of these
Answer
Exothermic reaction
Explanation
Solution
When water is added to cement an exothermic reaction occurs. During this process, the cement reacts with water to form a gelatinous mass which slowly sets into a hard mass having three dimensional network structure involving −Si−O−Si– and −Si−O−Al− chains.