14.5.2. Subsurface Effects

Try these first

1. 1.

   What happens to the bond between binder and aggregates if moisture is present?

   Hint

   Think about what moisture does to other materials.

2. 2.

   Define stripping in the context of pavements.

   Hint

   Consider the impact of bond failure.

3. 3.

   What can contribute to the loss of bond between binder and aggregates?

   • Only moisture
   • Poor mixing
   • Only weathering

   Hint

   Think of factors through which bond integrity is compromised.

4. 4.

   True or False: Moisture helps strengthen the bond in bituminous materials.

   • True
   • False

   Hint

   Recall the effects of water on pavement materials.

5. 5.

   Design a pavement structure that minimizes moisture intrusion to prevent loss of bond. Consider different layers and materials.

   Hint

   Think about the best materials that resist moisture.

6. 6.

   Analyze a scenario where a pavement has experienced severe moisture-induced damage. What testing methods would you recommend to assess the extent of the damage?

   Hint

   Consider both laboratory and field assessment techniques.