The relative humidity of laboratory should be _______ for standard consistency.

If L1=Measurement taken after 24 hours of immersion in water at a temp. of 27 ± 20oC and L2=Measurement taken after 3 ho…

What is standard consistency?

How many layers of concrete are placed to fill a slump cone?

How many moulds required for the compression strength test of cement?

Which cement is used for mainly building construction where strength required with age?

Which cement is used to store for longer duration in wet climatic conditions?

Initial setting time of OPC should not be less than _______