The parameter required for the concrete mix design of a 20 MPa characteristic compressive strength per cubic meter of concrete are given below:

Specific gravity of the cement = 3.15

Specific gravity of the fine aggregate = 2.60

Specific gravity of the coarse aggregate = 2.60

Ratio of fine aggregate to total aggregate by volume = 0.315

Water content = 200 kg

Cement content = 400 kg

If the amount of the entrapped air in the wet concrete is 2 percent, then the total mass of fine aggregate per cubic meter will be