3.7.2. Cohesive Soils (Clays, Silts)

Try these first

1. 1.

   What type of soil is classified as cohesive?

   Hint

   Think about the fine particles that stick together.

2. 2.

   What is OMC in relation to soil compaction?

   Hint

   Remember, moisture affects how well soil can be compacted.

3. 3.

   What is the best method for compacting cohesive soils?

   • Vibratory Rollers
   • Sheepsfoot Rollers
   • Static Rollers

   Hint

   Think about the unique design of the roller's feet.

4. 4.

   True or False: Compaction of cohesive soils should be done when moisture is significantly below OMC.

   • True
   • False

   Hint

   The ideal moisture level is key for effective compaction.

5. 5.

   A construction project involves building a large parking lot on a cohesive clay site. Suggest a detailed compaction strategy addressing moisture content and equipment choice.

   Hint

   Think about how water affects clay and the type of rollers used.

6. 6.

   Analyze the consequences of neglecting optimal moisture levels during compaction on a building's foundation in clay.

   Hint

   Consider the effects of poor compaction on the stability of buildings.