Civil Engineering - Building Materials - Discussion

11. 

When a brick is immersed in water for 24 hours and then dried, if

[A]. no grey or white deposits appear on the surface, the brick is free from soluble salts
[B]. 10 per cent surface is covered with grey or white deposits, the brick has slight efflorescence
[C]. 50 per cent surface is covered with grey or white deposits, the brick has serious efflorescence
[D]. All the above.

Answer: Option D

Explanation:

No answer description available for this question.

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