14.2. Durability of Bituminous Materials

Try these first

1. 1.

   Define durability in the context of bituminous materials.

   Hint

   Think about how long materials last under stress.

2. 2.

   What is one factor that affects the durability of bituminous materials?

   Hint

   Consider the composition of the materials.

3. 3.

   What does durability refer to in bituminous materials?

   • A) Resistance to UV light
   • B) Ability to withstand aging
   • C) Low cost

   Hint

   Think about what keeps materials strong over time.

4. 4.

   True or False: Higher air void content always improves durability.

   • True
   • False

   Hint

   Consider what air voids do to material strength.

5. 5.

   Given different compositions of bitumen, predict which would perform best in a high-traffic urban environment.

   Hint

   Think about how certain materials behave under stress.

6. 6.

   Design a mix for a pavement subjected to variable temperature surroundings and explain your choices.

   Hint

   Consider the materials' interactions and the environment.