1、Designation: D2028/D2028M 10Standard Specification forCutback Asphalt (Rapid-Curing Type)1This standard is issued under the fixed designation D2028/D2028M; the number immediately following the designation indicates theyear of original adoption or, in the case of revision, the year of last revision.
2、A number in parentheses indicates the year of lastreapproval. A superscript 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 specification covers cutback petroleum asphalts
3、 ofthe rapid-curing type for use in the construction and treatmentof pavements.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
4、 other. Combiningvalues from the two systems may result in non-conformancewith the standard.2. Referenced Documents2.1 ASTM Standards:2D5 Test Method for Penetration of Bituminous MaterialsD95 Test Method for Water in Petroleum Products andBituminous Materials by DistillationD113 Test Method for Duc
5、tility of Bituminous MaterialsD140 Practice for Sampling Bituminous MaterialsD402 Test Method for Distillation of Cutback Asphaltic(Bituminous) ProductsD2042 Test Method for Solubility of Asphalt Materials inTrichloroethyleneD2170 Test Method for Kinematic Viscosity of Asphalts(Bitumens)D2171 Test M
6、ethod for Viscosity of Asphalts by VacuumCapillary ViscometerD3143 Test Method for Flash Point of CutbackAsphalt withTag Open-Cup Apparatus3. Properties3.1 The cutback asphalt shall not foam when heated toapplication temperature and shall conform to the requirementsprescribed in Table 1.4. Test Meth
7、ods4.1 The material shall be sampled in accordance withPractice D140, and the properties enumerated in this specifi-cation shall be determined in accordance with the followingASTM methods:4.1.1 Flash Point (Tag Open-Cup)Test Method D3143.4.1.2 Viscosity, KinematicTest Method D2170.4.1.3 Viscosity, a
8、t 60C 140FTest Method D2171.4.1.4 DistillationTest Method D402.NOTE 1If a 100-mL graduate does not permit sufficiently closereadings to determine conformity to these specifications with the desiredaccuracy, receivers graduated in 0.1-mL divisions shall be used.4.1.5 PenetrationTest Method D5.4.1.6 D
9、uctilityTest Method D113.4.1.7 Solubility in TrichloroethyleneTest Method D2042.4.1.8 WaterTest Method D95.1This specification is under the jurisdiction of ASTM Committee D04 on Roadand Paving Materials and is the direct responsibility of Subcommittee D04.40 onAsphalt Specifications.Current edition
10、approved June 1, 2010. Published June 2010. Originallyapproved in 1963. Last previous edition approved in 2004 as D202897(2004).DOI: 10.1520/D2028-10.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStand
11、ards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.ASTM International takes no position respecting the validity of any patent rights asserted in co
12、nnection with 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 respo
13、nsible 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 Headquarters. Your comments will receive careful
14、 consideration 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,
15、100 Barr Harbor 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
16、 website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).TABLE 1 Requirements for Cutback Asphalt (Rapid-Curing Type)NOTEIf the ductility at 25C 77F is less than 100, the material will be acceptable if its ductility at 15
17、C 59F is more than 100.DesignationRC-70 RC-250 RC-800 RC-3000Min Max Min Max Min Max Min MaxKinematic viscosity at 60C 140F, mm2s 70 140 250 500 800 1600 3000 6000Flash point (Tag open-cup), C F . . 2780. 2780. 2780.Distillation test:Distillate, volume percent of total distillate to 360C (680F):to 1
18、90C 374F 10 . . . . . . .to 225C 437F 50 . 35 . 15 . . .to 260C 500F 70 . 60 . 45 . 25 .to 316C 600F 85 . 80 . 75 . 70 .Residue from distillation to 360C 680F,percent volume by difference55 . 65 . 75 . 80 .Tests on residue from distillation:Viscosity at 60C 140F, Pa sA60 240 60 240 60 240 60 240Duct
19、ility at 25C 77F, cm 100 . 100 . 100 . 100 .Solubility in trichloroethylene, % 99.0 . 99.0 . 99.0 . 99.0 .Water, % . 0.2 . 0.2 . 0.2 . 0.2AInstead of viscosity of the residue, the specifying agency, at its option, can specify penetration at 100 g: 5 s at 25C 77F of 80 to 120 for Grades RC-70, RC-250,RC-800, and RC-3000. However, in no case will both be required.D2028/D2028M 102
