9.2.5. Temperature Susceptibility

Try these first

1. 1.

   Define temperature susceptibility in the context of bitumen.

   Hint

   Think about how temperature affects materials.

2. 2.

   What is the softening point test used for?

   Hint

   Recall the tests we discussed in class.

3. 3.

   What does temperature susceptibility measure in bitumen?

   • Weight changes
   • Stiffness variation
   • Chemical composition

   Hint

   Think about what happens when it gets hot or cold.

4. 4.

   True or False: Higher temperature susceptibility leads to better pavement performance.

   • True
   • False

   Hint

   Reflect on the stability of materials.

5. 5.

   A city in a tropical climate experiences high temperatures during summer. Discuss the ideal properties of bitumen that should be used for road construction in this location and why.

   Hint

   Think about materials used in extreme climates.

6. 6.

   Suppose a softening point test on a specific bitumen grade resulted in a temperature of 60°C. What implications does this have for using this bitumen in a northern climate with freezing winters?

   Hint

   What happens to materials in very cold versus very hot conditions?