10.7. Criteria for Selection of Bituminous Binders

Try these first

1. 1.

   What type of binder is preferred for cold climates?

   Hint

   Think about how cold affects material flexibility.

2. 2.

   What is a common use for emulsions?

   Hint

   What role do these coats perform?

3. 3.

   What is the role of climatic conditions in binder selection?

   • Only aesthetics
   • Fuel efficiency
   • Performance
   • Cost

   Hint

   Think about how hot and cold weather affects materials.

4. 4.

   True or False: All traffic conditions require the same type of bituminous binder.

   • True
   • False

   Hint

   Would one type of binder work effectively for all scenarios?

5. 5.

   Given various climatic conditions (hot, cold, moderate) and types of traffic (heavy, light, mixed), outline a strategy for selecting binders for a new highway project.

   Hint

   Create a matrix matching climates and traffic types to binder choices.

6. 6.

   You’re tasked with rehabilitating an urban road that has experienced fatigue cracking. Recommend a suitable binder and justify your choice based on traffic volume and climate.

   Hint

   Focus on how the binder’s characteristics can mitigate existing damage.