Page 25 - Unit 2: Pavement Material

Civil Engineering Department | DCC3113 : Highway & Traffic Engineering

Type of test The objectives of tests on road construction materials

Los Angeles Abrasion (LAAV) (ASTM C: 131-81)
• To determine the percent of degradation under combination of abrasion or attrition,
impact and grinding

• Aggregates weight 5000 gram are placed in a steel drum with specified number of steel
balls. Drum is rotated 500 revolutions at 33 rpm. Then, aggregates are sieved with 1.70mm
sieve size and calculate :

LAAV = Weight pass sieve 1.70 mm x 100
Weight Original
Steel Balls

500 revolutions at 33 rpm

Result before and after rotate in steel drum

LAAV Equipment
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Prepared by : SITI ZURAIFA BINTI MD SAH, zuraifa@pmu.edu.my