2.8. Swelling and Shrinkage Behavior

Try these first

1. 1.

   What are expansive soils?

   Hint

   Think about soils that have high plasticity.

2. 2.

   Name one test for swell potential.

   Hint

   Consider a test that measures swelling without pressure.

3. 3.

   What type of soils swell when wet and shrink when dry?

   • Coarse Soils
   • Expansive Soils
   • Fine-Grained Soils

   Hint

   Think about soils commonly used in construction.

4. 4.

   True or False: The Oedometer Test measures the swelling pressure of soils.

   • True
   • False

   Hint

   Consider the functions of various soil tests.

5. 5.

   Evaluate a scenario where black cotton soil is causing structural damage to a road. Describe a mitigation plan incorporating both short-term and long-term solutions.

   Hint

   Think about the factors contributing to swelling and how to manage them.

6. 6.

   Develop a testing protocol to assess the swelling behavior of a soil sample. Include which tests would be prioritized and why.

   Hint

   Determine the logical sequence based on the depth of analysis required.