5.6. Pavement Materials and Their Stabilization

Try these first

1. 1.

   What is subgrade soil?

   Hint

   Think of it as the 'ground layer'.

2. 2.

   Name one type of pavement material.

   Hint

   Consider the types we discussed today.

3. 3.

   What is the primary role of subgrade soil?

   • A foundation layer
   • Friction layer
   • Decorative layer

   Hint

   It's the base layer.

4. 4.

   True or False: Fly ash can be used to stabilize granular sub-bases.

   • True
   • False

   Hint

   Think about the alternative materials.

5. 5.

   A city is considering whether to use traditional gravel or a polymer-modified asphalt mix for their new highway. Analyze the advantages and disadvantages of both options.

   Hint

   Consider factors like maintenance, long-term investments, and traffic volume.

6. 6.

   Describe the impact of weather conditions on the performance of stabilized layers in pavements during winter.

   Hint

   Think about how materials react to temperature changes.