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Building Materials

Q1:

A 1st class brick immersed in water for 24 hours, should not absorb water (by weight) more than

A 10%

B 15%

C 20%

D 25%

E 5%.

ANS:C - 20%

1st class brick 15%to20%.
2nd class brick 22%to25%.
3rd class brick 25%to 30%.
IS code standard 1st class brick 20% or 2nd class brick 25% 3rd class brick 30% after 24 immersion cold water water absorption by weight.



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