1.1. Effect on Swell Shrink aspect

Try these first

1. 1.

   What happens to the void space in soil when it is compacted?

   Hint

   Think about the positioning of soil particles.

2. 2.

   What is the effect of compacting soil dry of optimum moisture?

   Hint

   Consider how moisture affects soil behavior.

3. 3.

   What effect does soil compaction have on swelling?

   • Increases swelling
   • Decreases swelling
   • No effect

   Hint

   Think about the relationship between void space and swelling.

4. 4.

   True or False: Soil compacted dry of optimum moisture exhibits lower swell pressure.

   • True
   • False

   Hint

   Remember how moisture relates to swell capacity.

5. 5.

   Calculate the swelling potential of a soil sample compacted dry of optimum versus one compacted wet of optimum based on given parameters.

   Hint

   Look for differences in moisture content and density figures provided.

6. 6.

   Evaluate case studies where poor compaction led to structural failure, detailing the causes related to swell and shrinkage.

   Hint

   Focus on documented consequences given in project evaluations.