1、Designation:D242/D242M19Standard Specification forMineral Filler for Asphalt Mixtures1This standard is issued under the fixed designation D242/D242M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number i
2、n parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers mineral filler added as aseparate ingredient for use in asphalt mixtures.1.2 The values stated in either SI units or inc
3、h-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in nonconformancewith the standard.1.3 The text of this standard reference
4、s notes and footnoteswhich provide explanatory material.These notes and footnotes(excluding those in tables and figures)shall not be consideredas requirements of the standard.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization e
5、stablished 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:2C50/C50M Practice for Sampling,Sample Preparation,Packaging,and
6、 Marking of Lime and Limestone ProductsC183/C183M Practice for Sampling and the Amount ofTesting of Hydraulic CementC311/C311M Test Methods for Sampling and Testing FlyAsh or Natural Pozzolans for Use in Portland-CementConcreteD8 Terminology Relating to Materials for Roads and Pave-mentsD546 Test Me
7、thod for Sieve Analysis of Mineral Filler forAsphalt Paving MixturesD4318 Test Methods for Liquid Limit,Plastic Limit,andPlasticity Index of Soils3.Terminology3.1 For definitions of terms used in this standard,seeTerminology D8.4.General Description4.1 Mineral filler shall consist of finely divided
8、mineralmatter such as rock dust,slag dust,hydrated lime,hydrauliccement,fly ash,loess,or other suitable mineral matter.At thetime of use,it shall be sufficiently dry to flow freely andessentially free from agglomerations.5.Physical Requirements5.1 Mineral filler shall be graded within the followingl
9、imits:SievePercent Passing(by Mass)1.18 mm(No.16)100600 m(No.30)97 to 100300 m(No.50)95 to 10075 m(No.200)70 to 1005.2 Mineral filler prepared from rock dust,slag dust,loess,and similar materials shall be essentially free from organicimpurities and have a plasticity index not greater than 4.NOTE1Pla
10、sticity index limits are not appropriate for hydrated limeand hydraulic cement.6.Methods of Sampling and Testing6.1 Sample the mineral filler according to Practice C50/C50M or C183/C183M,or Test Methods C311/C311M,which-ever is most appropriate for the material being sampled,exceptas noted in 6.1.1.
11、6.1.1 Obtain samples at random intervals not to exceed each300 tons of material as delivered.6.2 The minimum size of field samples shall be 5.0 kg11 lb.Reduce the field sample to a minimum size of 2.5 kg5 lb for testing.6.3 Determine the grading of the material by Test MethodD546.6.4 Determine the p
12、lasticity index by Test Methods D4318.1This specification is under the jurisdiction of ASTM Committee D04 on Roadand Paving Materials and is the direct responsibility of Subcommittee D04.50 onAggregate Specifications.Current edition approved May 1,2019.Published May 2019.Originallyapproved in 1926.L
13、ast previous edition approved in 2014 as D242/D242M 09(2014).DOI:10.1520/D0242_D0242M-19.2For 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 p
14、age onthe ASTM website.Copyright 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 theDe
15、velopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard.Users of
16、 this standard are expressly advised that determination of the validity of any such patent rights,and the riskof infringement of such rights,are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised,either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarte
