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Question
Efflorescence in bricks is caused by
bZaVksa esa mRQqYyr gksrk g
A.
The high pH content of water used during pugging
B.
Low silica content of bricks
C.
The presence of alkaline salts
D.
All of the above
Answer ( Option D)

All of the above

Solution

Efflorescence is a crystaline, salty deposit that occurs on the surfaces of bricks, concrete and other masonry products. It is white, sometimes a brilliant white or an off white colour.In order for efflorescence to occur, there must be water present to dissolve and transport the salts to the brick surface.

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