27.1. Overview

Try these first

1. 1.

   What is a flexible pavement?

   Hint

   Think about how it behaves when cars drive over it.

2. 2.

   Why are materials arranged from strong to weaker in pavements?

   Hint

   What would happen if you reversed that order?

3. 3.

   What does a flexible pavement do under load?

   • Stays rigid
   • Flexes and deforms
   • Breaks apart

   Hint

   Think about how a surface reacts when weight is applied.

4. 4.

   True or False: The top layer of a flexible pavement is typically the weakest.

   • True
   • False

   Hint

   Remember the arrangement of materials from strong to weak.

5. 5.

   Design a flexible pavement structure for a highway anticipated to hold heavy truck traffic. Mention the material choices and layer thickness.

   Hint

   Consider both load capacity and cost-effectiveness in your material choices.

6. 6.

   Evaluate the impact of seasonal changes on the performance of flexible pavements.

   Hint

   Remember how different materials respond to heat and cold.