9.2. Desirable Properties of Bitumen for Pavements

Try these first

1. 1.

   Define adhesion in terms of bitumen properties.

   Hint

   Think about how two materials stick together.

2. 2.

   What is viscosity?

   Hint

   Consider how honey flows compared to water.

3. 3.

   Which property allows bitumen to bond well with aggregates?

   • Viscosity
   • Adhesion
   • Ductility

   Hint

   Think about how materials stick together.

4. 4.

   True or False: Durability refers to the ability of bitumen to resist weathering.

   • True
   • False

   Hint

   Consider what happens to materials over time.

5. 5.

   Assess the potential consequences of using bitumen with inadequate ductility in a road designed for high temperature variations.

   Hint

   Consider how temperature impacts flexibility.

6. 6.

   Design a mix for a pavement that is both water-resistant and durable. What criteria for bitumen properties will you prioritize?

   Hint

   Focus on how water interacts with bitumen in wet conditions.