ASTM C131 - 06

    Standard Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine

    Active Standard ASTM C131 | Developed by Subcommittee: C09.20

    Book of Standards Volume: 04.02


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    Significance and Use

    This test has been widely used as an indicator of the relative quality or competence of various sources of aggregate having similar mineral compositions. The results do not automatically permit valid comparisons to be made between sources distinctly different in origin, composition, or structure. Assign specification limits with extreme care in consideration of available aggregate types and their performance history in specific end uses.

    1. Scope

    1.1 This test method covers a procedure for testing sizes of coarse aggregate smaller than 37.5 mm (11/ 2 in.) for resistance to degradation using the Los Angeles testing machine (Note 1).

    Note 1—A procedure for testing coarse aggregate larger than 19.0 mm (3/4 in.) is covered in Test Method C 535.

    1.2 The values stated in SI units are to be regarded as the standard. The inch-pound values given in parentheses are for information only.

    This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    A6/A6M Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling

    C125 Terminology Relating to Concrete and Concrete Aggregates

    C136 Test Method for Sieve Analysis of Fine and Coarse Aggregates

    C535 Test Method for Resistance to Degradation of Large-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine

    C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials

    C702 Practice for Reducing Samples of Aggregate to Testing Size

    D75 Practice for Sampling Aggregates

    E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves


    ICS Code

    ICS Number Code 91.100.30 (Concrete and concrete products)

    UNSPSC Code

    UNSPSC Code 30111800(Aggregates)


    DOI: 10.1520/C0131-06

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