10.4.3. Environmental Considerations

Try these first

1. 1.

   What is cutback bitumen?

   Hint

   Think of its application purpose.

2. 2.

   Why are VOCs a concern?

   Hint

   Consider pollution and health impacts.

3. 3.

   What is cutback bitumen made from?

   • Only water
   • Bitumen and solvents
   • Only bitumen

   Hint

   Remember, it needs something to help it apply better.

4. 4.

   True or False: VOCs are harmless to humans.

   • True
   • False

   Hint

   Consider their effects on air quality.

5. 5.

   Analyze the long-term effects of using cutback bitumen over five years in a high-traffic area versus using polymer-modified bitumen.

   Hint

   Consider the differences in air emissions and material degradation.

6. 6.

   Consider a new regulation that limits VOC emissions to a certain threshold. How might this impact the choice between cutback bitumen and emulsions in future projects?

   Hint

   Think about product viability in light of environmental legislation.