Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine. GeoTesting Express is a provider of Aggregate Testing Services – ASTM C, Standard Test Method for Resistance to Degradation of Small-Size Coarse. ASTM C Standard Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine.

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Combining values from the two systems may result in non-conformance with the standard. It is the responsibility of asrm user of this standard to aatm appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.

Sieve size is identified by its standard designation in Specification E This test is a measure of degradation of mineral aggregates f standard gradings resulting from a combination of actions including abrasion or attrition, impact, and grinding in a rotating steel drum containing a specified number of steel spheres, the number depending upon the grading of the test sample.


As the drum rotates, a shelf plate picks up the sample of the steel spheres, carrying them around until they are dropped to the opposite side of the drum, creating an impact-crushing effect.

A procedure for testing coarse aggregate larger than Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. After the prescribed number of revolutions, the contents are removed from the drum and the aggregate portion is sieved to measure the atm as percent loss.

Assign specification limits with extreme care in consideration of available aggregate types and their performance history in specific end uses.

Aggregate testing Lab Services: The Alternative designation given in parentheses is for information only and does not represent a different standard sieve size. Link to Active This link will always route to the current Active version of the standard. Historical Version s – view previous versions of standard.


The percent loss determined by this test method has no known consistent relationship to the percent loss for the same material when tested by Test Method C The contents then roll within the from with an abrading and grinding action until the shield plate picks up the sample and the steel spheres, and the cycle is repeated.

For Individuals with needing special assistance for disabilities or limited English proficiency Please contact our Title VI specialist at The 1c31 do not automatically permit valid comparisons to be made between sources distinctly different in origin, composition, or structure.

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