1.4.1. Density Variations

Try these first

1. 1.

   What happens to soil density when water content increases?

   Hint

   Remember the peak density concept.

2. 2.

   Define MDD.

   Hint

   Think about what 'maximum' means.

3. 3.

   What is the relationship between water content and density?

   • Increases only
   • Increases up to a point then decreases
   • Decreases at all times

   Hint

   Think about what happens after reaching OMC.

4. 4.

   Is it true or false that increased compaction always results in higher density?

   • True
   • False

   Hint

   Consider how different soils react to the same compaction.

5. 5.

   A construction site is observing a density drop after OMC is reached. What adjustments could engineers make to improve stability?

   Hint

   Think about prior topics discussed regarding compaction and moisture.

6. 6.

   Why might coarse-grained soil be preferred in a high-traffic area, while fine-grained soil could be avoided?

   Hint

   Consider the moisture retention qualities of different soil types.