11.9.1. Definition

Try these first

1. 1.

   What is a bituminous cutback?

   Hint

   Think about what helps bitumen flow better.

2. 2.

   Name one use of bituminous cutbacks.

   Hint

   Where do you see cutbacks applied on roads?

3. 3.

   What is the main purpose of using a volatile solvent in bituminous cutbacks?

   • A. To enhance the color
   • B. To reduce viscosity
   • C. To increase weight

   Hint

   Which option relates to flow characteristics?

4. 4.

   True or False: Bituminous cutbacks can be used in cold weather applications.

   • True
   • False

   Hint

   Recall their main advantage.

5. 5.

   Analyze the implications of using environmentally harmful solvents in bituminous cutbacks. What alternative solvents could be considered?

   Hint

   Consider ecological principles when looking for alternatives.

6. 6.

   Design an experiment to test the effectiveness of different volatile solvents on the curing time of a bituminous cutback.

   Hint

   Think about how you would control variables like temperature and surface type.