1.5. Under Revision

Try these first

1. 1.

   What does compressibility refer to?

   Hint

   Think about how sponges compress.

2. 2.

   Define Swelling Index.

   Hint

   Consider how plants absorb water.

3. 3.

   What is the definition of compressibility?

   • Ability to resist pressure
   • Ability to soften
   • Ability to reduce volume under stress

   Hint

   Think of how a sponge compresses.

4. 4.

   True or False: The Swelling Index measures how much a material contracts when wet.

   • True
   • False

   Hint

   Remember absorption vs. release.

5. 5.

   A material has a compressibility of 0.001 m²/N. If a force of 1000N is applied, calculate the expected volume reduction if its original volume was 1m³.

   Hint

   Use the formula for volume reduction based on compressibility.

6. 6.

   How would you compare the behavior of clay and sand under the same level of moisture? Discuss in regards to their Swelling Index and compressibility.

   Hint

   Consider their physical properties and how they react to moisture.