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Q: As per IS 456:2000, the characteristic compressive strength of 150 mm cube of M45 grade concrete at 28 days, is
  • A. 40 N/m²
  • B. 50 N/m²
  • C. 45 N/m²
  • D. 36 N/m²
Correct Answer: Option C -
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Explanations:

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