ASTM C131/C131M-20 Standard Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine.pdf

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards.Guides and Remendations issued by the World Trade Organization Technical Barriers to Trade (TBT)Committee. Designation:C131/C131M-20 INTERNATIONAL Standard Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine This standard is issued under the fixed designation C131/C131M:the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision.A number in parentheses indicates the year of last reapproval. A superscript epsilon (e)indicates an editorial change since the last revision or reapproval. This standand has been approved for use by agencies of the U.S.Department of Defense. 1.Scope* 2.Referenced Documents 1.I This test method covers a procedure for testing of coarse 2.1 ASTM Standards:2 aggregates with a maximum size smaller than 37.5 mm ([12 A6/A6M Specification for General Requirements for Rolled in.]for resistance to degradation using the Los Angeles testing Structural Steel Bars Plates Shapes and Sheet Piling machine (Note 1). C125 Terminology Relating to Concrete and Concrete Ag- gregates NoTE 1-A procedure for testing coarse aggregate larger than 19.0 mm C136 Test Method for Sieve Analysis of Fine and Coarse [4 in.is covered in Test Method C535.Thus coarse aggregates with a maximum size between 19 mm [4 in.and 37.5 mm [1/2 in.may be Aggregates tested by Test Method C535 or Test Method C131/C131M. C535 Test Method for Resistance to Degradation of Large- Size Coarse Aggregate by Abrasion and Impact in the Los 1.2 The values stated in either SI units or inch-pound units Angeles Machine are to be regarded separately as standard.The values stated in C670 Practice for Preparing Precision and Bias Statements each syst...