1、Designation: D242/D242M 09 (Reapproved 2014)Standard Specification forMineral Filler For Bituminous Paving 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
2、 year of last revision. A number in 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 bituminous paving mixtures.
3、1.2 The values stated in either SI units or inch-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 non-conformancewith
4、the standard.1.3 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.2. Referenced Documents2.1 ASTM Standards:2C50 Practice for Sampling, S
5、ample Preparation, Packaging,and Marking of Lime and Limestone ProductsC183 Practice for Sampling and the Amount of Testing ofHydraulic CementC311 Test Methods for Sampling and Testing Fly Ash orNatural Pozzolans for Use in Portland-Cement ConcreteD546 Test Method for Sieve Analysis of Mineral Fille
6、r forBituminous Paving MixturesD4318 Test Methods for Liquid Limit, Plastic Limit, andPlasticity Index of Soils3. General Description3.1 Mineral filler shall consist of finely divided mineralmatter such as rock dust, slag dust, hydrated lime, hydrauliccement, fly ash, loess, or other suitable minera
7、l matter. At thetime of use, it shall be sufficiently dry to flow freely andessentially free from agglomerations.4. Physical Requirements4.1 Mineral filler shall be graded within the followinglimits:Sieve Percent Passing (by Mass)1.18 mm No. 16 100600-m No. 30 97 to 100300-m No. 50 95 to 10075-m No.
8、 200 70 to 1004.2 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.NOTE 1Plasticity index limits are not appropriate for hydrated limeand hydraulic cement.5. Methods of Sampl
9、ing and Testing5.1 Sample the mineral filler according to Practice C50,C183, or Test Methods C311, whichever is most appropriatefor the material being sampled, except as noted in 5.1.1.5.1.1 Obtain samples at random intervals not to exceed each300 tons of material as delivered.5.2 The minimum size o
10、f field samples shall be 5.0 kg 11lbs. Reduce the field sample to a minimum size of 2.5 kg 5lbs for testing.5.3 Determine the grading of the material by Test MethodD546.5.4 Determine the plasticity index by Test Method D4318.1This specification is under the jurisdiction of ASTM Committee D04 on Road
11、and Paving Materials and is the direct responsibility of Subcommittee D04.50 onAggregate Specifications.Current edition approved June 1, 2014. Published October 2014. Originallyapproved in 1926. Last previous edition approved in 2009 as D242/D242M 09.DOI: 10.1520/D0242_D0242M-09R14.2For referenced A
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