The unit weight of a soil is 14.9kn/m3. the moisture content of the soil is17% when the degree of saturation is 60%. determine:
a. saturated unit weight
b. void ratio
c. specific gravity of soil solids

a) 2622.903 N/m^3

b) 1.38233

c)4.878811765

Explanation:

Find the void ratio using the formula:

Here;

is specific gravity of soil solids

is unit weight of water = 998 kg/m^3

is the moisture content = 0.17

is the void ratio

is the unit weight of soil = 14.9KN/m^3

Saturation Ratio Formula:

S is saturation rate

Substitute Eq 2 into Eq 1

Specific gravity of soil solids

Saturated Unit Weight