Computer · Design of RCC Structures
As per IS 456, the minimum nominal cover for reinforcing bars in RCC slabs should be:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 115 mm
- 215 mm or diameter of the main bar, whichever is greater✓
- 325 mm or diameter of the main bar, whichever is greater
- 415 mm or the nominal maximum size of the coarse aggregate
Correct answer
15 mm or diameter of the main bar, whichever is greater
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