3.7. Compaction of Different Soil Types

Try these first

1. 1.

   What type of roller is best suited for compacting granular soils?

   Hint

   Think about how these rollers work.

2. 2.

   What is OMC?

   Hint

   Consider why moisture matters in soil compaction.

3. 3.

   What should be the water content for the best compaction of granular soils?

   • Above OMC
   • Below OMC
   • Equal to OMC

   Hint

   Consider how water influences particle interaction.

4. 4.

   Cohesive soils can be effectively compacted using which equipment?

   • Smooth rollers
   • Vibratory plates
   • Sheepsfoot rollers

   Hint

   Think of how cohesive soils behave when compacted.

5. 5.

   Design a soil compaction plan for a new road that will involve both granular and cohesive soils.

   Hint

   Consider the characteristics of each soil type in your plan.

6. 6.

   Analyze a situation where an engineering project used compaction on expansive soils without stabilization. Discuss potential outcomes.

   Hint

   Reflect on the risks associated with not adjusting the compaction techniques.