The chief component of cement that has property of setting quickly and acquiring considerable strength within a few days is

A
Tricalcium silicate. $3 CaO \cdot {SiO}_{2}$
B
Dicalcium silicate, $2 CaO - {SiO}_{2}$
C
Tricalcium aluminate. $3 CaO \cdot {Al}_{2} O_{3}$
D
All the above

Solution:

Tricalcium silicate sets quickly and develops considerable strength within a few days. Di calcium silicate sets slowly and develops appreciable strength after a month or so. Tricalcium aluminate sets instantaneously in presence of water and imparts initial internal strength to the cement.

Solution:

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