Which test is used to measure the toughness of aggregates?
- AImpact testCorrect
- BCrushing test
- CAbrasion test
- DSoundness test
Solution
Concept
Impact test
Step-by-step solution
1. Toughness is resistance to sudden shock, measured by the impact test.
Explanation
The aggregate impact value indicates toughness.
Why the other options are wrong
Crushing test measures strength, abrasion test hardness and soundness test durability.
Shortcut
Impact = toughness.
Common mistake
Choosing the crushing test.
Correct answer: A) Impact test