14.1.2.1. Oxidation

Try these first

1. 1.

   What is oxidation in bituminous materials?

   Hint

   Think about how oxygen affects materials.

2. 2.

   Name one effect of oxidation on bituminous materials.

   Hint

   How does stiffness relate to flexibility?

3. 3.

   What primary effect does oxidation have on bituminous materials?

   • Increases ductility
   • Increases stiffness
   • No effect

   Hint

   Think about how materials degrade.

4. 4.

   True or False: Oxidation improves the flexibility of bituminous materials.

   • True
   • False

   Hint

   Reflect on the impact of oxygen on material properties.

5. 5.

   Investigate the correlation between temperature and oxidation rates in different climates and propose preventive strategies accordingly.

   Hint

   Consider the impact of heat on chemical reactions.

6. 6.

   Evaluate the long-term performance of an asphalt mix with high oxidative susceptibility and suggest improvements.

   Hint

   Think about what materials could extend the life of the pavement.