1. Cement Stabilization

Try these first

1. 1.

   What is the typical percent cement content for subgrade modification?

   Hint

   Think about the range mentioned in the notes.

2. 2.

   What does the Standard Proctor test measure?

   Hint

   Consider what test determines compaction efficiency.

3. 3.

   What percentage of cement is generally recommended for soil stabilization?

   • 2-3%
   • 4% ± 0.50%
   • 5-6%

   Hint

   Check your notes for cement content recommendations.

4. 4.

   True or False: The Standard Proctor test measures soil's moisture content only.

   • True
   • False

   Hint

   Remember what aspects this test evaluates.

5. 5.

   You have a soil sample weighing 2000 grams. Calculate the cement required for stabilization at 4% content.

   Hint

   Use the formula: weight of soil * cement percentage.

6. 6.

   During the unconfined compression test, if your stabilized soil sample achieves 120 psi, is this strength adequate? Why or why not?

   Hint

   Consider the strength gain standard mentioned in the section.