5.2.2.c. Fly Ash Stabilization

Try these first

1. 1.

   What is fly ash?

   Hint

   Think of where it comes from.

2. 2.

   What property allows fly ash to improve soil?

   Hint

   It reacts with lime.

3. 3.

   What is fly ash?

   • A type of cement
   • A by-product from burning coal
   • A soil type

   Hint

   Consider sources of energy.

4. 4.

   Fly ash enhances soil stability by reducing which property?

   • True
   • False

   Hint

   Think about what makes soil strong.

5. 5.

   Design a small road section that incorporates fly ash stabilization. Explain the material layers and their functions.

   Hint

   Think about how each layer contributes to overall stability.

6. 6.

   Critically assess a case study where failure occurred due to lack of soil stabilization. How would fly ash have altered the outcome?

   Hint

   Consider real-world examples of road failures.