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Q: As per IS : 456-2000, the nominal concrete cover in mm for “Extreme durability of concrete” is.......
  • A. 45 mm
  • B. 50 mm
  • C. 65 mm
  • D. 75 mm
Correct Answer: Option D - See the above explanation.
D. See the above explanation.

Explanations:

See the above explanation.