As per IS 4031-1988, the heat of hydration of low-heat Portland cement for 7 days should not be more than______ calories per gram.

As per IS 4031-1988, the heat of hydration of low-heat Portland cement

1.	As per IS 4031-1988, the heat of hydration of low-heat Portland cement for 7 days should not be more than______ calories per gram.
A.	90
B.	100
C.	65
D.	120
E.	160
Answer» D. 120