1.2.1. Determining Optimum Lime Content

Try these first

1. 1.

   What benefit does lime provide to soil?

   Hint

   Think about changes in soil behavior.

2. 2.

   What pH level do we aim for when stabilizing soil with lime?

   Hint

   This is slightly above neutral.

3. 3.

   What is the optimum pH level for lime stabilization?

   • 10.5
   • 11.5
   • 12.4
   • 13.4

   Hint

   Recall the pH that maximizes lime effectiveness.

4. 4.

   True or False: Organic content in soil does not affect lime stabilization.

   • True
   • False

   Hint

   Think about what affects chemical reactions.

5. 5.

   A soil sample is tested and found to have a pH of 12.10 after adding lime. If you want to achieve a target of 12.40, what would you do?

   Hint

   Consider the next steps if your results are just below target.

6. 6.

   After determining an optimum lime content of 5%, what further tests should be conducted to ensure effective stabilization?

   Hint

   Think about what properties are crucial to construction.