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The Los Angeles Abrasion test is a measure of the degradation of mineral aggregates resulting from a combination of actions including abrasion, attrition, impact, and grinding in a rotating steel drum containing a specified number of steel spheres. The number of steel spheres depends on the grading of the aggregate sample.This test is intended for coarse aggregate sizes smaller than 37.5 mm (1.5 in.).

 

Data entry and calculations for this test are performed on the Los Angeles Abrasion form described in the next section. After the data and calculations have been performed the results are displayed in a test report as described in the reporting section below. The format of this report is controlled by the geotechnical template used for the test.

 

The methodology and calculations for this test adhere to "ASTM C131-03 Standard Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine" and "AASHTO T96 Los Angeles Rattler". For more detailed information on the methodology and calculations please review these standards.