A good quality stone absorbs water less than
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A stone is rejected if it absorbs water more than
Stones used for ornamental work must be
The presence of original rounded surface on the manufactured piece of timber, is called
Stones used for the construction of retaining walls must be
In stone masonry, stones (stratified rocks) are so placed that the direction of pressure to the plane of bedding is
In stone masonry, if stones are so placed that their layers are parallel to the direction of load, they
In arches, stratified stones are placed so that their lanes are
The tendency of a stone is, to split along
The standard size of masonry bricks, is
Modular bricks are of nominal size 20 * 10 * 10 cm and 20% of the volume is lost in mortar between joints. Then what is the number of modular bricks required per cubic meter of brickwork ?
The frog of a brick is normally made on its
The size of mould for brick is generally kept
For one cubic metre of brick masonry, number of bricks required, is
The minimum compressive strength of Ist class bricks should be
The minimum compressive strength of IInd class bricks should be
A 1st class brick immersed in water for 24 hours, should not absorb water (by weight) more than
The main ingredient of a good quality brick earth, is
Clay and silt content in a good brick earth must be at least
Dolomite is a limestone which contains carbonate of magnesia upto