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Building Materials - Engineering

Q1:

Rapid hardening cement attains early strength due to

A larger proportion of lime grounded finer than normal cement

B lesser proportion of lime grounded coarser than normal cement

C lesser proportion of lime grounded finer than normal cement

D larger proportien of lime grounded coarser than normal cement

E excess percentage of gypsum.

ANS:A - larger proportion of lime grounded finer than normal cement

Yes,
1. A larger proportion of lime.
2. Burn at high temp.
3. Grinding finer than OPC.