Answer / gopal

Tested cube strength/Standard strength required * 100

Example :
Grade 20 concrete cube
Tested cube result after 28 days = 30n/mm2
Design strength after 28 days = 20n/mm2

30/20x100 = 150%

strength vs shape factor

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for 1cum how much bag of cement is used for M20 grade

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what is the difference between onw way slab & two way slab?

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