4.2.1. Moisture Content

Try these first

1. 1.

   What happens to soil strength when moisture content increases?

   Hint

   Think about how too much water affects the soil.

2. 2.

   Define saturation in the context of soil.

   Hint

   Consider the extreme case of soil moisture.

3. 3.

   What change occurs to soil strength when moisture content increases?

   • Increases
   • Decreases
   • Remains constant

   Hint

   Consider the relation of water to soil friction.

4. 4.

   Saturation describes a condition where:

   • True
   • False

   Hint

   Think about the worst-case scenario for a submerged soil.

5. 5.

   You have a clayey soil sample with a moisture content reading of 30%. Discuss how this might impact its strength and the potential outcomes for pavement stability.

   Hint

   Consider the relationship between pore pressure and soil strength.

6. 6.

   Evaluate a sandy soil that has a measured moisture content of 15%. How might this level of moisture influence compaction efforts and pavement design?

   Hint

   Recall how sandy soils manage draining differently than clay soils.