1. Chemical Modification or Stabilization

Try these first

1. 1.

   What is chemical stabilization?

   Hint

   Think about altering soil properties.

2. 2.

   Name one chemical used for soil stabilization.

   Hint

   Remember they change the soil's properties.

3. 3.

   What is the primary purpose of chemical stabilization?

   • To reduce soil weight
   • To alter soil properties for stability
   • To increase plasticity

   Hint

   Think about the main rationale behind modifying soil.

4. 4.

   True or False: A strength gain of 30 psi is acceptable for soil stabilized with approved chemicals.

   • True
   • False

   Hint

   What was mentioned about strength gains?

5. 5.

   A project requires a stable pavement subgrade. You have clayey soil with a high plasticity index. How would you approach chemical stabilization?

   Hint

   What properties of the clay are important?

6. 6.

   You need to prepare a soil-cement mixture for stabilization. Describe the steps you will take to test its effectiveness.

   Hint

   What conditions are necessary for proper testing?