For under water concreting. – McqOptions

MCQOPTIONS

1.	For under water concreting.
A.	at least 10 percent more cement is required as compared to dry conditions
B.	the volume of coarse aggregates shall not be less than one and half times and not more than twice that of fine aggregate
C.	the slump should not be less than 100 mm and not more than 180 mm
D.	dewatering by pumping is not done or until 24 hours thereafter
Answer» E.

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