22.2. Desirable properties

Try these first

1. 1.

   What is the importance of strength in aggregates?

   Hint

   Think about what happens when heavy vehicles drive over pavement.

2. 2.

   Why do you avoid flaky aggregates?

   Hint

   Consider how shape might affect the stability of a pavement.

3. 3.

   What is the main property that allows aggregates to resist crushing?

   • Hardness
   • Strength
   • Durability

   Hint

   Think about heavy vehicles and their effect on pavement.

4. 4.

   True or False: Flaky aggregates are preferable in pavement construction?

   • True
   • False

   Hint

   Consider the relationship between shape and stability.

5. 5.

   Given that you have weak aggregates, devise a strategy to improve the pavement's performance using specific tests.

   Hint

   What tests can you run to assess the current quality of aggregates?

6. 6.

   Analyze how the shape of aggregates can influence the design of a highway pavement.

   Hint

   Think about stability and how pieces fitting together affects load.