7.3.3. Impact Test

Try these first

1. 1.

   What does the Impact Test measure?

   Hint

   Think about the aggregate's ability to handle stress.

2. 2.

   Define Aggregate Impact Value (AIV).

   Hint

   Focus on what happens to the aggregate during the test.

3. 3.

   What does the Impact Test specifically assess?

   • Strength
   • Toughness
   • Durability

   Hint

   Think about what property of aggregates is critical for withstanding sudden forces.

4. 4.

   True or False: An AIV less than 30% indicates suitable aggregate for surface courses.

   • True
   • False

   Hint

   Recall the acceptable limits set for the test.

5. 5.

   Design a comparative study analyzing how different aggregate materials affect road durability under high traffic.

   Hint

   Look into real-world scenarios where aggregate toughness has affected road longevity.

6. 6.

   Critique a scenario where an aggregate used in a major highway project fails after a year due to improper toughness assessment during the Impact Test.

   Hint

   Consider the long-term benefits of thorough testing.