Computer · Concrete Technology
As per IS 456, the flexural strength of concrete (f cr ) can be calculated from its characteristic compressive strength (f ck ) using which of the following formulas?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1f cr = 0.7 × √f ck N/mm 2✓
- 2f cr = 0.7 × f ck N/mm 2
- 3f cr = 0.7 × 3 √f ck 1 N/mm 2
- 4f cr = 0.7 × (f ck ) 2 N/mm 2
Correct answer
f cr = 0.7 × √f ck N/mm 2
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