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Q: As per IS 456 : 2000, the minimum grade of concrete to be used for plain concrete and reinforced respectively in concrete works exposed directly along the sea coast are :
  • A. M 20 and M 30
  • B. M 15 and M 25
  • C. M 20 and M 25
  • D. M 25 and M 40
Correct Answer: Option A -
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Explanations:

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