Civil Engineering MCQAE Level Civil Engineering
As per IS 456:2000, the minimum clear cover for a main reinforcement bar in a beam in a moderate exposure condition is:
RCCIS 456 CoverMEDIUM
Choose the correct answer
A
15 mm
B
25 mm
C
40 mm
D
50 mm
Correct Answer
B. 25 mm
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IS 456:2000 Table 16: For beam in moderate exposure, nominal cover = 30 mm (clear cover = 30 - bar radius). The minimum clear cover for beams is generally 25 mm (very mild) to 45 mm (very severe). Moderate = 30 mm nominal.
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