2. Effect of compaction on soil properties

Try these first

1. 1.

   What is compaction?

   Hint

   Think about what happens to soil when we press it down.

2. 2.

   How does compaction affect soil density?

   Hint

   Consider the relationship between air spaces and the soil's weight.

3. 3.

   What happens to soil density when compaction is applied?

   • Decreases
   • Increases
   • Remains the same

   Hint

   Remember what compaction does to air in soil.

4. 4.

   True or False: Compacted soil has a higher bearing capacity than loose soil.

   • True
   • False

   Hint

   Think about supports under a heavy load.

5. 5.

   A construction company needs to determine the optimal moisture content for compacting clay. Discuss how you would approach this problem and what factors would affect your decision.

   Hint

   Think about how too much or too little water would affect the clay's structure.

6. 6.

   A city plans to build a new road over previously compacted soil. What tests can they perform to ensure that the soil can support the new load?

   Hint

   Consider the properties that would indicate whether the soil is still strong enough for heavy loads.