ASTM D2397/D2397M-19

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of the standard as published by ASTM is to be considered the official document.
Designation: D2397/D2397M − 17 D2397/D2397M − 19
Standard Specification for
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Cationic Emulsified Asphalt
This standard is issued under the fixed designation D2397/D2397M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope
1.1 This specification covers seven grades of cationic emulsified asphalt for use in pavement construction in the manner
designated.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
1.3 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
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2.1 ASTM Standards:
D5/D5M Test Method for Penetration of Bituminous Materials
D113 Test Method for Ductility of Asphalt Materials
D140/D140M Practice for Sampling Asphalt Materials
D244 Test Methods and Practices for Emulsified Asphalts
D2042 Test Method for Solubility of Asphalt Materials in Trichloroethylene
D3910 Practices for Design, Testing, and Construction of Slurry Seal
D6930 Test Method for Settlement and Storage Stability of Emulsified Asphalts
D6933 Test Method for Oversized Particles in Emulsified Asphalts (Sieve Test)
D6935 Test Method for Determining Cement Mixing of Emulsified Asphalt
D6936 Test Method for Determining Demulsibility of Emulsified Asphalt
D6997 Test Method for Distillation of Emulsified Asphalt
D7226 Test Method for Determining the Viscosity of Emulsified Asphalts Using a Rotational Paddle Viscometer
D7402 Practice for Identifying Cationic Emulsified Asphalts
D7496 Test Method for Viscosity of Emulsified Asphalt by Saybolt Furol Viscometer
D7553 Test Method for Solubility of Asphalt Materials in N-Propyl Bromide
3. Requirements
3.1 The emulsified asphalt shall be tested within 14 days of delivery. The emulsified asphalt shall be homogeneous after
thorough mixing, provided separation has not been caused by freezing. Emulsions separated by freezing shall not be tested.
3.2 Emulsified asphalt shall conform to the requirements prescribed in Table 1. Specify the test method to be used. Specify
either Test Method D7226 or D7496.
4. Sampling
4.1 Samples of emulsified asphalt shall be taken in accordance with Practice D140/D140M.
4.2 Samples shall be stored in clean, airtight sealed containers at a temperature of not less than 4 °C [39.2 °F] until tested.
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This specification is under the jurisdiction of ASTM Committee D04 on Road and Paving Materials and is the direct responsibility of Subcommittee D04.41 on Emulsified
Asphalt Specifications.
Current edition approved June 1, 2017May 1, 2019. Published June 2017May 2019. Originally approved in 1965. Last previous edition approved in 20132017 as
D2397/D2397M – 13.D2397/D2397M – 17. DOI: 10.1520/D2397_D2397M-17.10.1520/D2397_D2397M-19.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
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D2397/D2397M − 19
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TABLE 1 Requirements for Cationic Emulsified Asphalt
NOTE 1—CQS-1h emulsions shall meet the requirements outlined in Practices D3910.
NOTE 2—CQS-1h is used for quick-set slurry seal systems.
Rapid-Setting Medium-Setting Slow-Setting Quick-Setting
Type CRS-1 CRS-2 CMS-2 CMS-2h CSS-1 CSS-1h CQS-1h
Grade min max min max min max min max min max min max min max
Test on Emulsions:
Viscosity, Saybolt Furol at 25 °C (77 °F) SFS 20 100 20 100 20 100
Viscosity, Saybolt Furol at 50 °C (122 °F) SFS 20 100 100 400 50 450 50 450
Viscosity, Rotational Paddle Viscometer at 25 °C (77 °F) mPa s 45 220 45 220 45 220
Viscosity, Rotati
...