Which property of aggregates is tested using the Los Angeles abrasion test?
- AStrength
- BHardnessCorrect
- CDurability
- DWater absorption
Solution
Concept
Los Angeles abrasion test
Step-by-step solution
1. The test rotates aggregate with steel balls and measures the loss. 2. It measures resistance to wear, i.e. hardness.
Explanation
The Los Angeles test gives the abrasion value, an index of hardness and wear resistance of aggregate.
Why the other options are wrong
Strength is by the crushing test, durability by the soundness test, and water absorption by its own test.
Shortcut
LA test = hardness.
Common mistake
Choosing strength.
Correct answer: B) Hardness