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Durability & Abrasion

Durability and abrasion tests measure degradation of aggregate caused by physical forces such as impact, friction and abrasion.

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  • Micro-Deval Apparatus measures abrasion resistance and durability of mineral aggregates.
  • Los Angeles Abrasion Machine is widely used as an indicator of the relative quality of aggregates when subjected to abrasion and impact.
  • Durability Index Agitator measures the relative resistance of aggregates when mechanically agitated in a special washing machine.
  • Sulfate Soundness Test uses repeated soaking, drying and rehydration cycles of aggregates with sodium sulfate or magnesium to simulate damage to aggregates caused by natural freeze-thaw action.
  • Pendulum Skid Tester measures skid resistance when a rubber slider on a 20in (508mm) pendulum arm contacts a test surface.
  • Accelerated Polishing Machine determines aggregate wear through the action of vehicle tires.