Answer Posted / nitish bajaj
M-5,M-7.5,M-10,M-15 THESE GRADES ARE USED IN
ORDINARY BUILDINGS
For RCC Concrete = M-20,M-25,M-30,M-35
For Coloumn, Pier etc = M-40,M-45,M-50,M-55
For High Grade of Concrete = M-60,M-70,M-75,M-80,M-90,M-100
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