Calculation of Modular ratio values for different grades of concrete

Calculation of Modular ratio values for different grades of concrete

Grade of concrete Modular ratio
M15 m = 280/3×5 = 18.66
M20 m = 280/3×7 = 13.33
M25 m = 280/3×8.5 = 10.98
M30 m = 280/3×10 = 9.33
It should be remembered that rounding off the modular ratio values is not permitted by Indian Standard.

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