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why the compressive strength of concrete is calculated only after 28 days.why not after 25, 26,27 days..

Answer Posted / silpa

Cube Size=150 mmX 150 MM
Area = 22.5 Sqm.
Stress = Load / Area E
Eg : 600/22.5=26.26 N/mm

Is This Answer Correct ?    2 Yes 10 No



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