1.3. Degree of Saturation (S)

Try these first

1. 1.

   What is the formula for void ratio?

   Hint

   Think about the relationship of voids to solids.

2. 2.

   What does a 100% degree of saturation mean?

   Hint

   Consider what capacity the soil has for water.

3. 3.

   What is the formula for calculating the degree of saturation (S)?

   Hint

   Think about what a saturated soil contains.

4. 4.

   True or False: A higher void ratio indicates less space for air in the soil.

   • True
   • False

   Hint

   Consider how voids are defined.

5. 5.

   A field has a soil with a specific gravity of 2.70 and water content of 30%. If the bulk unit weight is 18 kN/m³, determine the dry unit weight.

   Hint

   Think how specific gravity connects soil weight and water density.

6. 6.

   Given a saturated soil with a void ratio of 0.5 and a total volume of 2 m³, calculate the volume of water when the degree of saturation is at 100%.

   Hint

   Remember how the volume of voids helps in determining potential water capacity.