Cement used for normal concrete construction, is obtained by burning a mixture of

Water-cement ratio is, usually, expressed in

The operation of removing humps and hollows of uniform concrete surface, is known as

If fineness modulus of sand is 2.5, it is graded as

Workability of concrete for a given water content is good if the aggregates, are

To perform the compressive strength test of cement, water is added at the rate of

The cement, widely used in retaining walls, is

The most useless aggregate is one whose surface texture is