What is Los Angeles Abrasion test in road construction?

The Los Angeles Abrasion test is a standardized procedure used to determine the abrasion resistance and durability of aggregate materials used in road construction. In this test, aggregates are placed in a rotating drum along with steel balls, and the drum's rotation simulates the wear and tear that occurs during traffic. The percentage of material that is crushed or degraded after a specified number of revolutions provides an indication of the aggregate's quality and suitability for use in asphalt or concrete. A lower percentage of wear indicates higher durability, making the aggregate more suitable for road construction.