1、Designation: D6154 09 (Reapproved 2014)Standard Specification forChemically Modified Asphalt Cement for Use in PavementConstruction1This standard is issued under the fixed designation D6154; the number immediately following the designation indicates the year oforiginal adoption or, in the case of re
2、vision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () 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 gel
3、lant. It was devel-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
4、 specification.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 asstandard.
5、No other units of measurement are included in thisstandard.1.4 The following 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
6、 of the userof this standard to establish appropriate safety and healthpractices 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 (Ri
7、ng-and-Ball Apparatus)D92 Test Method for Flash and Fire Points by ClevelandOpen Cup TesterD140 Practice for Sampling Bituminous MaterialsD1754 Test Method for Effects of Heat and Air on AsphalticMaterials (Thin-Film Oven Test)D2042 Test Method for Solubility of Asphalt Materials inTrichloroethylene
8、D4957 Test Method forApparent Viscosity ofAsphalt Emul-sion Residues and Non-Newtonian Bitumens by VacuumCapillary Viscometer3. Materials and Manufacture3.1 The asphalt cement used to prepare the chemicallymodified asphalt cement shall be prepared by the refining ofcrude petroleum by suitable method
9、s.4. Physical Properties4.1 The chemically modified asphalt cement shall behomogeneous, free from water, and shall not foam when heatedto 180C.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 m
10、odified asphalt cementin accordance with the following methods:5.1.1 SamplingSee Practice D140.5.1.2 PenetrationSee Test Method D5.5.1.3 Viscosity at 60CSee Test Method D4957.5.1.4 Viscosity at 135CSee Test Method D4957.5.1.5 Flash Point, Cleveland Open CupSee Test MethodD92.5.1.6 Solubility in Tric
11、hloroethyleneSee Test MethodD2042.5.1.7 Softening PointSee Test Method D36.5.1.8 Thin-Film Oven TestSee Test Method D1754.6. Keywords6.1 chemical gellant; chemical stabilizer; Chemically Modi-fied Asphalt Cement; viscosity1This specification is under the jurisdiction of ASTM Committee D04 on Roadand
12、 Paving Materials and is the direct responsibility of Subcommittee D04.40 onAsphalt Specifications.Current edition approved June 1, 2014. Published November 2014. Originallyapproved in 1997. Last previous edition approved in 2009 as D6154 09. DOI:10.1520/D6154-09R14.2For referenced ASTM standards, v
13、isit 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 onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-
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19、http:/ 1 Requirements for Chemically Modified Asphalt CementTestAGradeCM 5-10 CM 10-20 CM 20-30 CM 30-40ViscosityB,C, 60C, min, Pas, 1 s150.0 100.0 200 300ViscosityC,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 35Penetratio
20、n, 25C, 100 g, 5 s, dmm 140 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/BT
21、FOTAHandling of all samples for testing shall be in accordance with 7.2 of Test Method D4957, which requires heating the sample in an oven maintained at 195 2C. Stirthe sample occasionally until homogenous and pour in a suitable container for testing. Pouring temperatures should be 180 5C on all tes
22、ts.BNormally run using 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.DThe selection of tube size and vacuum should be varied to achieve measurement near the specified shear rate to avoid extrapolation of data.D6154 09 (2014)2
