Civil Engineering MCQJE Level Civil Engineering
The minimum area of tension reinforcement in a slab using Fe415 steel (as % of bd) per IS 456 is:
RCCRCCMEDIUM
Choose the correct answer
A
0.85%
B
0.15%
C
0.12%
D
0.20%
Correct Answer
C. 0.12%
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IS 456 Cl. 26.5.2.1: Minimum Ast = 0.12% of total cross-sectional area (bD) for Fe415/Fe500 slabs. This is 0.12bD/100. For Fe250 it is 0.15%. Minimum steel prevents cracking from shrinkage and temperature effects even when structural demand is zero.
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