The efflorescence on the surface of bricks is said to be slight if the white deposits cover about ________ of the surface.(a) 10%(b) 15%(c) 25%(d) 50%I had been asked this question in examination.The above asked question is from Bricks topic in division Glass, Lime, Clay Products & Bricks of Construction & Building Materials

The efflorescence on the surface of bricks is said to be slight if the

1.	The efflorescence on the surface of bricks is said to be slight if the white deposits cover about ________ of the surface.(a) 10%(b) 15%(c) 25%(d) 50%I had been asked this question in examination.The above asked question is from Bricks topic in division Glass, Lime, Clay Products & Bricks of Construction & Building Materials
Answer» CORRECT choice is (a) 10% The explanation: Presence of soluble salts CAUSES efflorescence on the surface of the BRICKS. The efflorescence on the surface of bricks is said to be slight if the white deposits COVER about 10% of the surface. It becomes heavy if these deposits are found on more than 50% of the surface.

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