9.2.3. Ductility

Try these first

1. 1.

   What is ductility in the context of bitumen?

   Hint

   Think about how bitumen behaves when temperatures change.

2. 2.

   Why is ductility important for pavements?

   Hint

   Consider the effects of temperature on materials.

3. 3.

   What does ductility refer to in bitumen?

   • A. Its hardness
   • B. Its ability to deform
   • C. Its color

   Hint

   Think about how materials behave when stretched.

4. 4.

   True or False: High ductility in bitumen is detrimental to pavement performance.

   • True
   • False

   Hint

   Consider the benefits of flexibility.

5. 5.

   You have two different bitumen samples, one with high ductility and another with low ductility. Predict how each would perform in a region with extreme temperature fluctuations.

   Hint

   Consider how temperature changes affect flexibility.

6. 6.

   Discuss the financial implications of using low ductility bitumen in road construction versus high ductility bitumen.

   Hint

   Think about lifespan and repair costs.