Computer · Concrete Technology
As per IS 456:2000, which grade of concrete has a design flexural tensile strength of 3.5 N/mm2 (commonly calculated as 0.7√fck)? Assuming the question intended characteristic tensile strength of 3.5 N/mm2, or evaluating standard textbook values for 3.2 N/mm2, select the appropriate option matching 3.5 N/mm2 core formula:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1M15
- 2M25✓
- 3M20
- 4M30
Correct answer
M25
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