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The L. A. Abrasion Machine is used as a quality
control tool for aggregates, including crushed rock,
gravel and slag.
The testing method determines the degradation
when subjected to abrasion, attrition, impact and
grinding. The sample is placed in the drum along with
a hardened steel abrasive charge. After rotating
the drum a specific number of times, samples are
removed and examined for wear.
(Relation standard KS F 2508)
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