12.6.1. Mechanism of Moisture Damage

Try these first

1. 1.

   What is moisture damage in bituminous mixes?

   Hint

   Think about how water can affect adhesive materials.

2. 2.

   Name one effect of moisture on pavements.

   Hint

   Consider how water can affect the bonding of materials.

3. 3.

   What is the main cause of moisture damage in bituminous mixes?

   • A) Excessive heat
   • B) Water infiltration
   • C) Heavy traffic

   Hint

   Think about what happens to glue when it gets wet.

4. 4.

   True or False: Stripping is a type of moisture damage.

   • True
   • False

   Hint

   Recall the definition of stripping.

5. 5.

   Design a bituminous mix to minimize moisture damage. What components would you include and why?

   Hint

   Think about what materials can help the asphalt 'stick' better.

6. 6.

   Analyze the performance of a pavement that has experienced significant stripping. What would be the potential failure modes?

   Hint

   Consider the impacts of losing aggregate and bond integrity.