1、Designation: D6154 09 (Reapproved 2014)D6154 15Standard 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 ca
2、se of revision, 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 been modified by the addition of a che
3、mical gellant. It was developedto provide a reference for specifying chemically modified asphalt cement and reflects the properties of currently availablecommercial products. The tests are intended to measure degree of modification not performance characteristics. This is notintended to be a perform
4、ancebased specification.1.2 Chemically modified asphalt cements are normally produced by addition of a chemical stabilizer. However, any asphaltmodifier may be used that will give the required test results when blended with the desired asphalt.1.3 The values stated in SI units are to be regarded as
5、standard. No other units of measurement are included in this standard.1.4 The following precautionary statement pertains to the test method portion only, Section 5, of this specification:This standarddoes not purport to address all of the safety concerns, if any, associated with its use. It is the r
6、esponsibility of the user of thisstandard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D5 Test Method for Penetration of Bituminous MaterialsD36 Test Method for Softening Point o
7、f Bitumen (Ring-and-Ball Apparatus)D92 Test Method for Flash and Fire Points by Cleveland Open Cup TesterD140 Practice for Sampling Bituminous MaterialsD1754 Test Method for Effects of Heat and Air on Asphaltic Materials (Thin-Film Oven Test)D2042 Test Method for Solubility of Asphalt Materials in T
8、richloroethyleneD4957 Test Method for Apparent Viscosity of Asphalt Emulsion Residues and Non-Newtonian Bitumens by Vacuum CapillaryViscometerD7553 Test Method for Solubility of Asphalt Materials in N-Propyl Bromide3. Materials and Manufacture3.1 The asphalt cement used to prepare the chemically mod
9、ified asphalt cement shall be prepared by the refining of crudepetroleum by suitable methods.4. Physical Properties4.1 The chemically modified asphalt cement shall be homogeneous, free from water, and shall not foam when heated to 180C.4.2 The chemically modified asphalt cement shall conform to the
10、requirements of Table 1.5. Methods of Sampling and Testing5.1 Sample and test the chemically modified asphalt cement in accordance with the following methods:5.1.1 SamplingSee Practice D140.1 This specification is under the jurisdiction of ASTM Committee D04 on Road and Paving Materials and is the d
11、irect responsibility of Subcommittee D04.40 on AsphaltSpecifications.Current edition approved June 1, 2014Jan. 1, 2015. Published November 2014February 2015. Originally approved in 1997. Last previous edition approved in 20092014as D6154 09.D6154 09 (2014). DOI: 10.1520/D6154-09R14.10.1520/D6154-15.
12、2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to
13、 provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof
14、 the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States15.1.2 PenetrationSee Test Method D5.5.1.3 Viscosity at 60CSee Test Method D4957.5.1.4 Viscosity at 135CSee Te
15、st Method D4957.5.1.5 Flash Point, Cleveland Open CupSee Test Method D92.5.1.6 Solubility in TrichloroethyleneSolubilitySee Test Method D2042 or Test Method D7553.5.1.7 Softening PointSee Test Method D36.5.1.8 Thin-Film Oven TestSee Test Method D1754.6. Keywords6.1 chemical gellant; chemical stabili
16、zer; Chemically Modified Asphalt Cement; viscosityASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent right
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19、u 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, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be
20、 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). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA
21、 01923, Tel: (978) 646-2600; http:/ 1 Requirements for Chemically Modified Asphalt CementTestA GradeCM 5-10 CM 10-20 CM 20-30 CM 30-40ViscosityB,C , 60C, min, Pas, 1 s1 50.0 100.0 200 300ViscosityC,D , 135C, Pas, 10 s1 0.2 to 2.0 0.4 to 4.0 0.7 to 6.0 1.0 to 8.0Penetration, 4C, 200 g, 60 s, dmm 40 t
22、o 100 30 to 65 20 to 45 12 to 35Penetration, 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 99.0Solubility, min, %E 99.0 99.0 99.0 99.0Tests
23、on residue from thin-film oven test:Aging Index, max 2.5 2.5 2.5 2.5Vis. ATFOT/BTFOTA Handling 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
24、a suitable container for testing. Pouring temperatures should be 180 5C on all tests.B Normally run using a No. 200 Modified Koppers Viscometer tube at 300 mm of vacuum.C Normally run using a No. 50 Modified Koppers Viscometer tube at 100 mm of vacuum.D The selection of tube size and vacuum should be varied to achieve measurement near the specified shear rate to avoid extrapolation of data.E Use Test Method D2042 or Test Method D7553.D6154 152
