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Following data is available for Concrete mix design as per IS code
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i) Ratio of fine to total aggregate = 0.315

ii) Water Content = 190kg/m3

iii) Amount of entrapped air = 2%

iv) Specific gravity of cement = 3.15

v) Specific gravity of F.A = 2.68

vi) Specific gravity of C.A = 2.85

vii) Water Cement ratio = 0.50

Determine quantity of cement FA and CA per m3 of concrete.

Aggregate content can be determined from following equation

V=[W+CSC+1PFaSFa]11000

Determination of water content

Water / Cement ratio =0.5

Water = 190kg/m3

Cement = 1900.50=380kg/m3

V= Absolute volume of fresh concrete, which is equal to gross volume (m3) minus the volume of entrapped air

V =1(m3)2%

10.2

0.98m3

V=[W+CSC+1PFaSFa]11000

0.98=[190+3803.15+10.315Fa2.08]11000

Fa = 565kg/m3

Ca=1PP×FaSCaFCa

Ca=10.3150.315×5652.852068

1306.58kg/m3

The mix portion then becomes

Water Cement F.A C.A
190 380 565 1306.5
0.5 1 1.486 3.438
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