Degree of Saturation (S): It is defined as volume of water to the volume of voids.
`S=\frac{V_w}{V_v}=\frac{V_w}{V_a+V_w}`
“Degree of Saturation” (SR) is an engineering geology term and refers to the ratio of the volume of water to the total volume of void space.
The Degree of Saturation or SR-value ranges from 0% to 100% (0% being completely dry, and 100% being fully saturated)
Degree of saturation or percentage humidity is- The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure.
- The Degree of saturation is usually expressed as a percentage.
- As it indicates the portion of voids filled with water for a fully saturated soil V=0 and S=1 or 100%.
- And Completely Dry Soil V = 0 and S = 0 or zero percent.
