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100 CFT (Cubic Feet) is solid or wet work, we find the quantity of Dry Material (Cement, Sand, and Aggregate).
We know, dry work 54% addition of wet works.
In other words, Total dry works = 100+54% cft =100+(100×0.54) cft =100+54 cft =154 cft
We need 15 Megapascal strength concrete for Floor mortar, So We using a 1:2:4 ( cement: sand: aggregates ) concrete ratio. [You will change the concrete ratio with you works type]
Sum Of Cement, Sand and Aggregate Ratio =1:2:4 =1+2+4 =7What type of compressive strength to need for right different works using C: S: A (cement: sand: aggregates) Ratio.
Grades of Concrete | Ratio C:S:A | Strength MPa | Strength Psi | Comment |
M25 | 1:1:2 | 25MPa | 3625 psi | Footing, Column etc |
M20 | 1:1.5:3 | 20MPa | 2900 psi | Column, Grade Beam etc |
M15 | 1:2:4 | 15MPa | 2175 psi | Beam, Floor etc. |
M10 | 1:3:6 | 10MPa | 1450 psi | Ground Floor etc. |
M7.5 | 1:4:8 | 7.5MPa | 1087 psi | other |
M5 | 1:5:10 | 5MPa | 725 psi | other |