5.6.1. Introduction to Pavement Materials

Try these first

1. 1.

   What is subgrade soil?

   Hint

   Think about the basic support for a structure.

2. 2.

   Name one type of granular sub-base material.

   Hint

   What material is commonly used in construction?

3. 3.

   What is the primary function of subgrade soil?

   • to provide structural support
   • to serve as a decorative layer
   • to increase water retention

   Hint

   Consider the most basic role of soil in construction.

4. 4.

   True or False: Granular Sub-Base contributes to load distribution in pavement.

   • True
   • False

   Hint

   Think about the weight and how it affects foundation stability.

5. 5.

   Consider a new highway in a region with heavy rain. Design the pavement structure while accounting for water management.

   Hint

   Consider how water affects roads during heavy rains.

6. 6.

   Evaluate the role of WBM versus WMM in urban versus rural highway projects.

   Hint

   Think about traffic loads and budget constraints in different settings.