1.4. Suggested Chemical Quantities For Modification Or Stabilization

Try these first

1. 1.

   What are two chemical agents commonly used in soil stabilization?

   Hint

   Think about common construction materials.

2. 2.

   What does UCS stand for in soil testing?

   Hint

   Consider what compliance means in soil context.

3. 3.

   What is the minimum strength gain required for lime stabilization?

   • 30 psi
   • 50 psi
   • 100 psi

   Hint

   Refer to the strength improvement concepts.

4. 4.

   True or False: Chemical stabilization can only be achieved with cement.

   • True
   • False

   Hint

   Think about the diverse materials used.

5. 5.

   You have a natural soil with a UCS of 150 psi. You add 5% lime, curing it as per specifications. After evaluation, your UCS is 210 psi. Is this stabilization successful?

   Hint

   Calculate the gain and compare it to the threshold.

6. 6.

   A project requires evaluating the cost-effectiveness of using fly ash as a stabilizer versus traditional cement. Consider the properties, environmental impact, and overall strength needed.

   Hint

   Compare both in terms of technical and financial perspectives.