Civil Engineering MCQJE Level Civil Engineering
As per IS 1077, the maximum water absorption of first-class bricks should NOT exceed:
Building MaterialsBuilding MaterialsMEDIUM
Choose the correct answer
A
10%
B
15%
C
20%
D
25%
Correct Answer
C. 20%
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IS 1077 (common burnt clay bricks): water absorption of Class 1 bricks ≤ 20% by weight after 24-hour immersion. Excessive absorption weakens mortar bond and leads to frost damage. Higher class (Special) allows only 15%.
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