Mathematics · Concrete Design Strength Calculations
As per IS 456:2000, under the Limit State Method, which concrete grade gives a characteristic flexural tensile strength (fcr) equal to 3.5 N/mm2? [Formula: fcr = 0.7 √fck]
- 1M15
- 2M25✓
- 3M20
- 4M30
Correct answer
M25
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