Concrete code and concrete ratio:
Concrete
Grade
|
Proportion
of Cement : Sand : Stone pieces
|
Expected
Compressive Strength at 28 days
|
M10 or M100
|
1 :
3 : 6
|
10 N/mm2 or 100 Kg/cm2
|
M15 or M150
|
1 :
2 : 4
|
15 N/mm2 or 150 Kg/cm2
|
M20 or M200
|
1 :
1.5 : 3
|
20 N/mm2 or 200 Kg/cm2
|
M25 or M250
|
1 :
1 : 2
|
25 N/mm2 or 250 Kg/cm2
|
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