1、Designation: D 6154 04Standard Specification forChemically Modified Asphalt Cement for Use in PavementConstruction1This standard is issued under the fixed designation D 6154; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year
2、 of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers asphalt cements that have beenmodified by the addition of a chemical gellant. It was de
3、vel-oped to provide a reference for specifying chemically modifiedasphalt cement and reflects the properties of currently availablecommercial products. The tests are intended to measure degreeof modification not performance characteristics. This is notintended to be a performancebased specification.
4、1.2 Chemically modified asphalt cements are normally pro-duced by addition of a chemical stabilizer. However, anyasphalt modifier may be used that will give the required testresults when blended with the desired asphalt.1.3 The values stated in SI units are to be regarded as thestandard.1.4 The foll
5、owing precautionary statement pertains to thetest method portion only, Section 5, of this specification: Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healt
6、hpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documents2.1 ASTM Standards:2D5 Test Method for Penetration of Bituminous MaterialsD36 Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus)D92 Test Method for Flash and Fire Points by Cle
7、velandOpen Cup TesterD 140 Practice for Sampling Bituminous MaterialsD 1754 Test Method for Effects of Heat and Air on Asphal-tic Materials (Thin-Film Oven Test)D 2042 Test Method for Solubility of Asphalt Materials inTrichloroethyleneD 4957 Test Method for Apparent Viscosity of AsphaltEmulsion Resi
8、dues and Non-Newtonian Bitumens byVacuum Capillary Viscometer33. Materials and Manufacture3.1 The asphalt cement used to prepare the chemicallymodified asphalt cement shall be prepared by the refining ofcrude petroleum by suitable methods.4. Physical Properties4.1 The chemically modified asphalt cem
9、ent shall be homo-geneous, free from water, and shall not foam when heated to180C.4.2 The chemically modified asphalt cement shall conformto the requirements of Table 1.5. Methods of Sampling and Testing5.1 Sample and test the chemically modified asphalt cementin accordance with the following method
10、s:5.1.1 SamplingSee Practice D 140.5.1.2 PenetrationSee Test Method D5.5.1.3 Viscosity at 60CSee Test Method D 4957.5.1.4 Viscosity at 135CSee Test Method D 4957.5.1.5 Flash Point, Cleveland Open CupSee Test MethodD92.5.1.6 Solubility in TrichloroethyleneSee Test MethodD 2042.5.1.7 Softening PointSe
11、e Test Method D36.5.1.8 Thin-Film Oven TestSee Test Method D 1754.1This 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 approved June 1, 2004. Published June 200
12、4. Originallyapproved in 1997. Last previous edition approved in 1997 as D 6154 - 97.2For 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
13、page onthe ASTM website.3Withdrawn.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 connection with any item mentionedin this standard. User
14、s 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 technical committee and must be reviewed every
15、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 consideration at a meeting of theresponsible technica
16、l 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 Harbor Drive, PO Box C700, West Conshohocken,
17、 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).TABLE 1 Requirements for Chemic
18、ally Modified Asphalt CementTestAGradeCM 5-10 CM 10-20 CM 20-30 CM 30-40ViscosityB,C,D, 60C, min, Pas, 1 s150.0 100.0 200 300ViscosityC,E,D, 135C, Pas, 10 s10.2to2.0 0.4to4.0 0.7to6.0 1.0to8.0Penetration, 4C, 200 g, 60 s, dmm 40 to 100 30 to 65 20 to 45 12 to 35Penetration, 25C, 100 g, 5 s, dmm 140
19、to 185 100 to 140 65 to 100 35 to 65Flash Point, Cleveland open cup, min, C 246 246 246 246Softening Point, min, C 50 55 60 65Solubility in trichloroethylene, min, % 99.0 99.0 99.0 99.0Tests on residue from thin-film oven test:Aging Index, max 2.5 2.5 2.5 2.5Vis. ATFOT/BTFOTAHandling of all samples
20、for testing shall be in accordance with 7.2 of Test Method D 4957, which requires heating the sample in an oven maintained at 195 6 2C.Stir the sample occasionally until homogenous and pour in a suitable container for testing. Pouring temperatures should be 180 6 5C on all tests.BNormally run using
21、a No. 200 Modified Koppers Viscometer tube at 300 mm of vacuum.CNormally run using a No. 50 Modified Koppers Viscometer tube at 100 mm of vacuum.DSome test methods report in poise, rather than Pas. To convert, multiply poise by 0.1 to equal Pas.EThe selection of tube size and vacuum should be varied to achieve measurement near the specified shear rate to avoid extrapolation of data.D6154042
