6.2.2(c). Filler Materials

Try these first

1. 1.

   What are filler materials?

   Hint

   Think of small materials that enhance larger aggregates.

2. 2.

   Name one example of a filler material.

   Hint

   Consider materials that pass through a 75 µm sieve.

3. 3.

   What is the primary function of filler materials in the road mix?

   • To act as a binder
   • To fill voids
   • To provide color

   Hint

   Think about what role small particles have in a mix.

4. 4.

   True or False: Fillers can only include natural materials.

   • True
   • False

   Hint

   Consider both natural and manufactured options.

5. 5.

   Investigate how different types of filler materials affect the performance of asphalt pavement in a case study.

   Hint

   Search for reports or papers that discuss specific case studies.

6. 6.

   Design a theoretical asphalt mix using alternative filler materials and justify your choices based on structural integrity.

   Hint

   Consider sustainability and impact on longevity.