2.1. Water Content (w)

Try these first

1. 1.

   What is the void ratio if the volume of voids is 2 m³ and the volume of solids is 4 m³?

   Hint

   Use the formula e = Vv / Vs.

2. 2.

   Define water content in your own words.

   Hint

   Think about how it relates to moisture in soil.

3. 3.

   What is the definition of water content (w) in soil?

   • The ratio of volume of voids to volume of solids.
   • The mass of water present to the mass of solid particles.
   • The total volume of soil.

   Hint

   Think about how water impacts the soil's characteristics.

4. 4.

   Is void ratio (e) equal to porosity (n)?

   • True
   • False

   Hint

   Review the formulas for both concepts.

5. 5.

   A soil sample with a void ratio of 0.75 has a dry unit weight of 18 kN/m³. Calculate its saturated unit weight.

   Hint

   First, recall how to convert a void ratio to a saturated weight.

6. 6.

   Consider a structure built on a soil layer with a degree of saturation of 70%. What implications does this have for the stability of the structure?

   Hint

   Consider how additional water affects load-bearing and soil integrity.