10.3. Bituminous Emulsions

Try these first

1. 1.

   What is a bituminous emulsion?

   Hint

   Think of how it is used in road construction.

2. 2.

   Name the two main types of bituminous emulsions.

   Hint

   One type is better at adhering to aggregates.

3. 3.

   What is the primary advantage of cationic emulsions over anionic emulsions?

   • Better adhesion
   • Lower cost
   • Faster drying

   Hint

   Consider the role of charge in interactions.

4. 4.

   True or False: Anionic emulsions are more commonly used in practice than cationic emulsions.

   • True
   • False

   Hint

   Focus on the interaction between emulsions and aggregates.

5. 5.

   A construction team needs to choose an emulsion for a cold weather project where extended workability is essential. What type of emulsion would be best and why?

   Hint

   Consider how temperature affects curing times.

6. 6.

   Discuss how the choice of anionic emulsion may lead to issues in aggregate adhesion in specific environmental conditions.

   Hint

   Think about environmental influences on material interactions.