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Density of water,
|Mass of wet soil + Mould||Mass of mould||
Mass of wet soil
|Volume of mould (cm3)||
|Water content, w (%)||
Optimum moisture content = 12.4 %
Maximum dry density =1.76 g/cm3 =1.76 x 10-3 kg/cm3
Zero air void line has been plotted in the above figure.
Let the degree of saturation, water content and the void ratio at maximum dry density be S, w and e respectively.
Therefore, the required degree of saturation at maximum dry density is 61.83%.