search
arrow-left Previous
Next arrow-right
Q: Which one of the following tests, is used to test aggregate for its abrasion resistance:
  • A. Deval attrition test
  • B. Dorry abrasion test
  • C. Los Angels test
  • D. All option are correct
Correct Answer: Option D - Abrasion test is carried out to test the hardness property of aggregates and to decide whether they are suitable for different pavement construction works. Los – Angels abrasion test is to find out the percentage wear due to relative rubbing action between the aggregate and steel balls used as abrasive charge. Los–Angels machine consists of circular, drum of internal diameter 700mm and length. 520mm mounted on horizontal axis.
D. Abrasion test is carried out to test the hardness property of aggregates and to decide whether they are suitable for different pavement construction works. Los – Angels abrasion test is to find out the percentage wear due to relative rubbing action between the aggregate and steel balls used as abrasive charge. Los–Angels machine consists of circular, drum of internal diameter 700mm and length. 520mm mounted on horizontal axis.

Explanations:

Abrasion test is carried out to test the hardness property of aggregates and to decide whether they are suitable for different pavement construction works. Los – Angels abrasion test is to find out the percentage wear due to relative rubbing action between the aggregate and steel balls used as abrasive charge. Los–Angels machine consists of circular, drum of internal diameter 700mm and length. 520mm mounted on horizontal axis.