1、Designation: D 2042 09Standard Test Method forSolubility of Asphalt Materials in Trichloroethylene1This standard is issued under the fixed designation D 2042; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisio
2、n. 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 Department of Defense.1. Scope1.1 This test method covers the determination of the
3、degreeof solubility in trichloroethylene of asphalt materials havinglittle or no mineral matter.NOTE 1This method is not applicable to tars and their distillationresidues or highly cracked petroleum products. For methods covering tars,pitches, and other highly cracked petroleum products, and the use
4、 of othersolvents, see Test Methods D 4, D 2318, and D 2764.1.2 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.3 The text of this standard references notes and footnoteswhich provide explanatory material. These notes and foot
5、notes(excluding those in tables and figures) shall not be consideredas requirements of the standard.1.4 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 heal
6、th practices and determine the applica-bility of regulatory limitations prior to use. Specific precautionstatements are given in Section 7.2. Referenced Documents2.1 ASTM Standards:2C 670 Practice for Preparing Precision and Bias Statementsfor Test Methods for Construction MaterialsD4 Test Method fo
7、r Bitumen ContentD 2318 Test Method for Quinoline-Insoluble (QI) Contentof Tar and PitchD 2764 Test Method for Dimethylformamide-Insoluble(DMF-I) Content of Tar and PitchD 3666 Specification for Minimum Requirements forAgen-cies Testing and Inspecting Road and Paving Materials2.2 AASHTO Standard:3T4
8、4 Solubility of Bituminous Materials in Organic Solvents3. Summary of Method3.1 The sample is dissolved in trichloroethylene and filteredthrough a glass fiber pad. The insoluble material is washed,dried, and weighed.4. Significance and Use4.1 This test method is a measure of the solubility of asphal
9、tin trichloroethylene. The portion that is soluble in trichloroet-hylene represents the active cementing constituents.NOTE 2The quality of the results produced by this standard aredependent on the competence of the personnel performing the procedureand the capability, calibration, and maintenance of
10、 the equipment used.Agencies that meet the criteria of Specification D 3666 are generallyconsidered capable of competent and objective testing/sampling/inspection/etc. Users of this standard are cautioned that compliance withSpecification D 3666 alone does not completely assure reliable results.Reli
11、able results depend on many factors; following the suggestions ofSpecification D 3666 or some similar acceptable guideline provides ameans of evaluating and controlling some of these factors.5. Apparatus and Materials5.1 The assembly of the filtering apparatus is illustrated inFig. 1. Details of the
12、 component parts are as follows:5.1.1 Bitumen Crucible or Gooch Crucible, glazed insideand outside with the exception of outside bottom surface. Theapproximate dimensions shall be a diameter of 44 mm at thetop, tapering to 36 mm at the bottom, and a depth of 20-30 mm.5.1.2 Glass Microfiber Filter Pa
13、d, 3234 mm diameter, fineporosity, fast flow rate, 1.5 m particle retention.5.1.3 Filter Flask, heavy-wall, with side tube, 250- or500-mL capacity.5.1.4 Filter Tube, 40- to 42-mm inside diameter.5.1.5 Rubber Tubing or Adapter, for holding the crucible onthe filter tube.NOTE 3Other suitable assemblie
14、s permitting vacuum filtration with acrucible may be used.1This test method is under the jurisdiction of ASTM Committee D04 on Roadand Paving Materials and is the direct responsibility of Subcommittee D04.47 onMiscellaneous Asphalt Tests.Current edition approved June 1, 2009. Published June 2009. Or
15、iginallyapproved in 1966. Last previous edition approved in 2001 as D 2042 01.2For 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 on
16、the ASTM website.3Available from American Association of State Highway and TransportationOfficials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001,http:/www.transportation.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, Unite
17、d States.5.1.6 Erlenmeyer Flask, 125 mL.5.1.7 Oven, capable of maintaining a temperature of 110 65C.6. Reagent6.1 Trichloroethylene, technical grade.7. Safety Precautions7.1 Trichloroethylene is toxic, and good ventilation shouldbe provided.8. Preparation of Crucible8.1 Place the crucible plus one t
18、hickness of the filter pad inan oven at 110 6 5C for 15 min, allow to cool in a desiccatorfor 30 6 5 min, and then determine the mass to the nearest 0.1mg. Designate this mass as A. Store in the desiccator untilready for use.9. Sample Preparation9.1 If the sample is not fluid, heat to any convenient
19、temperature, but in any case not more than 100C above thesoftening point. Normally the temperature at which this test isrun is not critical, and it may be performed at the laboratory airtemperature. For referee tests, however, the flask and sample insolution shall be placed in a water bath maintaine
20、d at 38.0 60.3C for 1 h before filtering.10. Procedure10.1 Note safety precautions in Section 7. Transfer approxi-mately2gofthesample into a tared 125-mL Erlenmeyer flaskor other suitable container.Allow the sample to cool to ambienttemperature and then determine the mass to the nearest 1 mg.Designa
21、te this mass as B. Add 100 mL of the trichloroethyleneto the container in small portions with continuous agitationuntil all lumps disappear and no undissolved sample adheres tothe container. Stopper the flask or otherwise cover the con-tainer and set aside for at least 15 min (see Section 9.1).10.2
22、Place the previously prepared and weighed crucible inthe filtering tube. Wet the filter pad with a small portion oftrichloroethylene and decant the solution through the filter padof the crucible with or without light suction as may benecessary. When the insoluble matter is appreciable, retain asmuch
23、 of it as possible in the container until the solution hasdrained through the mat. Wash the container with a smallamount of solvent and, using a stream of solvent from a washbottle, transfer all insoluble matter to the crucible. Use a“policeman” if necessary to remove any insoluble matteradhering to
24、 the container. Rinse the policeman and containerthoroughly. Wash the insoluble matter in the crucible withsolvent until the filtrate is substantially colorless, then applystrong suction to remove the remaining solvent. Remove thecrucible from the tube, wash the bottom free of any dissolvedmatter, a
25、nd place the crucible on top of an oven or on a steambath until all odor of the trichloroethylene is removed (seesafety precautions in Section 7). Place the crucible in an ovenat 110 6 5C for at least 20 min. Cool the crucible in adesiccator for 30 6 5 min and determine its mass to the nearest0.1 mg
26、. Repeat the drying and weighing until constant mass (60.3 mg) is obtained. Designate this mass as C.NOTE 4To obtain precise results, the cooling time in the desiccatormust be approximately the same (within 65 min) after all heatings. Forexample, if the mass of the empty crucible is determined after
27、 a 30-mincooling period in the desiccator, the mass of the crucible containing theinsoluble matter should be determined after a 30 6 5-min cooling periodin the desiccator. Either empty crucibles or crucibles containing insolublematter that have remained in a desiccator overnight should be reheated i
28、nan oven for at least 30 min, then allowed to cool for the prescribed periodbefore the mass is determined.11. Calculation and Report11.1 Calculate either the total percentage of insoluble matteror the percentage of the sample soluble in the solvent used asfollows:% Insoluble 5SC 2 ABD3 100 (1)% Solu
29、ble 5SB 2 C 2 A!BD3 100 (2)where:A = mass of crucible and filter,B = mass of sample, andC = mass of crucible, filter and insoluble material.11.2 For percentages of insoluble less than 1.0, report to thenearest 0.01 %. For percentages of insoluble 1.0 or more,report to the nearest 0.1 %.12. Precision
30、12.1 AASHTO Materials Reference Laboratory (AMRL)data for Test Method D 2042 (and its AASHTO equivalentstandard, T44) were analyzed in 2001 as prescribed in PracticeC 670. These data represent approximately 13 200 repetitionsof the test, conducted on 132 samples having solubility valuesFIG. 1 Filter
31、ing Apparatus AssemblyD2042092between 99.5 % and 100.0 %. For samples within this range,the analysis suggests the following precision values are appro-priate:Multilab Standard Deviation (1S) = 0.01 + (0.753 % Insoluble)Single-Operator Standard Deviation (1S) = 0.01 + (0.25 3 % Insoluble)12.2 Since t
32、here is no accepted reference material suitablefor determining the bias in this test method, no statement onbias is made.13. Keywords13.1 asphalt; Gooch crucible; solubility; trichloroethyleneASTM International takes no position respecting the validity of any patent rights asserted in connection wit
33、h any item mentionedin this standard. Users of 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 techn
34、ical 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 Headquarters. Your comments will receive careful considerati
35、on at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Har
36、bor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D2042093
