ASTM_C_117_-_17.pdf

Designation:C11717Standard Test Method forMaterials Finer than 75-m(No.200)Sieve in MineralAggregates by Washing1This standard is issued under the fixed designation C117;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This test method covers the determination of the amountof material finer than a 75-m(No.200)sieve in aggregate bywashing.Clay particles and other aggregate particles that aredispersed by the wash water,as well as water-soluble materials,will be removed from the aggregate during the test.1.2 Two procedures are included,one using only water forthe washing operation,and the other including a wetting agentto assist the loosening of the material finer than the 75-m(No.200)sieve from the coarser material.Unless otherwisespecified,Procedure A(water only)shall be used.1.3 The values stated in SI units are to be regarded as thestandard.No other units of measurement are included in thisstandard.1.4 The text of this standard references notes and footnoteswhich provide explanatory material.These notes and footnotes(excluding those in tables and figures)shall not be consideredas requirements of the standard.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2C136 Test Method for Sieve Analysis of Fine and CoarseAggregatesC670 Practice for Preparing Precision and Bias Statementsfor Test Methods for Construction MaterialsC702 Practice for Reducing Samples ofAggregate to TestingSizeD75 Practice for Sampling AggregatesE11 Specification for Woven Wire Test Sieve Cloth and TestSieves2.2 AASHTO Standard:T11 Method of Test for Amount of Material Finer than0.075-mm Sieve in Aggregate33.Summary of Test Method3.1 A sample of the aggregate is washed in a prescribedmanner,using either plain water or water containing a wettingagent,as specified.The decanted wash water,containingsuspended and dissolved material,is passed through a 75-m(No.200)sieve.The loss in mass resulting from the washtreatment is calculated as mass percent of the original sampleand is reported as the percentage of material finer than a 75-m(No.200)sieve by washing.4.Significance and Use4.1 Material finer than the 75-m(No.200)sieve can beseparated from larger particles much more efficiently andcompletely by wet sieving than through the use of dry sieving.Therefore,when accurate determinations of material finer than75 m in fine or coarse aggregate are desired,this test method1This test method is under the jurisdiction of ASTM Committee C09 onConcrete and Concrete Aggregatesand is the direct responsibility of SubcommitteeC09.20 on Aggregates.Current edition approved Aug.1,2017.Published August 2017.Originallyapproved in 1935.Last previous edition approved in 2013 as C117 13.DOI:10.1520/C0117-17.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from American Association of State Highway and TransportationOfficials(AASHTO),444 N.Capitol St.,NW,Suite 249,Washington,DC 20001.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 is used on the sample prior to dry sieving in accordance withTest Method C136.The results of this test method are includedin the calculation in Test Method C136,and the total amount ofmaterial finer than 75 m by washing,plus that obtained by drysieving the same sample,is reported with the results of TestMethod C136.Usually,the additional amount of material finerthan 75 m obtained in the dry sieving process is a smallamount.If it is large,the efficiency of the washing operationshould be checked.It cou