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Q: Which cement dries quickly, possesses high strength, has superior aesthetic values and should not set earlier than 30 minutes?
  • A. Blast furnace
  • B. White cement
  • C. Acid resistance cement
  • D. Coloured cement
Correct Answer: Option B - Loss on ignition of white cement is nil. • The compressive and transverse strength of this cement is 90% of that of 33 grade OPC. • It is dries quickly, possesses high strength, has superior aesthetic values and should not set earlier than 30 minutes.
B. Loss on ignition of white cement is nil. • The compressive and transverse strength of this cement is 90% of that of 33 grade OPC. • It is dries quickly, possesses high strength, has superior aesthetic values and should not set earlier than 30 minutes.

Explanations:

Loss on ignition of white cement is nil. • The compressive and transverse strength of this cement is 90% of that of 33 grade OPC. • It is dries quickly, possesses high strength, has superior aesthetic values and should not set earlier than 30 minutes.