Efflorescence in cement is caused due to an excess of

According to Water- Cement Ratio law, the strength of workable plastic concrete

The maximum percentage of chemical ingredient of cement is that of

The increased cohesiveness of concrete, makes it

The object of compaction is

The process of hardening the concrete by keeping its surface moist is known

The maximum quantity of aggregate per 50 kg of cement should not exceed

For the construction of cement concerted dams, the maximum permissible size of the aggregates, is