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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 =7
What 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.|