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If the permissible compressive stress in concrete in bending for M30 grade of concrete is 10 N/mm2, then modular ratio will be

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If the permissible compressive stress in concrete in bending for M30 grade of concrete is 10 N/mm2, then modular ratio will be
  • A18.66
  • B13.33
  • C10.98
  • D9.33
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Discussion 1

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CCommunity
As per IS : 456-2000, modular ratio is given by

$(m = \frac{{280}}{{3{\sigma _{cbc}}}})$

For M30 concrete

σcbc = 10 N/mm2

$(m = \frac{{280}}{{3 \times 10}} = 9.33)$