1.3. Mechanism of Compaction

Try these first

1. 1.

   What does OMC stand for?

   Hint

   Think about the ideal moisture level for compacting soil.

2. 2.

   Why is more water past OMC detrimental?

   Hint

   Consider the role of water in soil structure.

3. 3.

   What increases soil density during compaction?

   • Adding more air
   • Removing air
   • Water content remains the same

   Hint

   Think about how compaction adjusts air levels.

4. 4.

   True or False: OMC indicates the moisture content at which soil is at its driest.

   • True
   • False

   Hint

   Consider what maximum means in the context.

5. 5.

   A construction site has been using too much water, resulting in soft spots in the soil. What strategies can be proposed to rectify compaction issues?

   Hint

   Consider tools and methods available for field adjustment.

6. 6.

   Differentiate MDD values obtained from clay and sand using provided test data. How would you analyze the results?

   Hint

   Think about how soil composition impacts density.