Answer Posted / yash kandari

*Mix ratio for M5 concrete is 1:5:10
Compressive strength is 5n/mm2 @ 28 day's

*Ordinary concrete:-
M10
M15
M20
*Standard concrete:-
M25
M30
M35
M40
M45
M50
M55
*High Strength Concrete:-
M60
M65
M70
M75
M80

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