The weight of 1 m of Portland cement is

In plastering of walls, using cement mortar,the suitable mix proportion of cement andsand is

The commonly adapted, nominal size of traditional brick

The manufacture of cement, burning process is carried out in a

Which of the following, is not a constituent of good brick earth

White cement should have least percentage of

For construction of structures under water the lime used is

Quick lime if left exposed to air

Fire bricks are always set in a mortar of

Bricks containing relatively large proportion of soluble salts are liable to become discoloured by formation of a white deposit known as

The chemical action between lime and water technically known as

The commonly used raw material in the manufacture of cement is

The internal size of mould used in brick preparation is

This is obtained by cutting a triangular portion of half the width but of full length of a brick

The initial setting time of ordinary portland cement shall not be

The actual size of standard brick is

Which proportion of cement motor is used for pointing work

Sand is mixed with lime mortar to

Initial setting time of ordinary cement is nearly

The maximum percentage of ingredient in cement is that of

The heating of lime stone to redness in contact with air known as

Refractory bricks resist

The dry bricks is usually expected to have moisture content of about

The crushing strength of a first class brick is

The indentation marks left on bricks during the process of molding are known as

One cubic meter of Portland cement is

For practical purpose, 1 cubic metre of Portland cement is taken as equivalent to

Strength and quality of cement primarily depend upon

When water is added to cement, ingredients of cement react with water and form complicated chemical compound till it achieves a rock-like state which is called

Lime which is obtained by calcination of comparatively pure lime

One cubic meter of Portland cement weighs

The masonry made from squared blocks of stones, tooled to a true face on all sides

The initial setting time of ordinary portland cement is not less than

The strength of cement concrete depends on

Good quality cement should have higher percentage of

For the construction of structure underwater, lime used is

The process of adding water to quick lime to convert in to hydraulic lime

The portion of brick without a triangular corner equal to half the width and half the length is known as

The water absorption of first class bricks after 24 hours immersion in cold water should not exceed

For ordinary cement the maximum extension by a Le Chatelier's method should not be more than

In quick setting cement the compound added is

Water absorption by a first class brick in 24 hours immersion in cold water should not exceed

Hollow bricks are used for

One cubic meter of Portland cement weights

Half width full length brick is

Portland cement is manufactured by burning in a kiln the following materials

In the manufacture of cement, gypsum is added to

The initial setting time for ordinary Portland cement is

General shrinkage in cement concrete is caused by

Water absorption of a good quality well burnt brick, when put for 24 hours in water,should not exceed :