ASTM D6999-19
(Practice)Standard Practice for Miscibility of Emulsified Asphalts
Standard Practice for Miscibility of Emulsified Asphalts
SIGNIFICANCE AND USE
4.1 It is sometimes desirable to dilute an emulsified asphalt in the field with water. This practice is designed to ascertain if this may be done without irreversibly separating the water and asphalt (breaking) in the emulsified asphalt.
Note 2: Water supplies available in some areas contain high levels of dissolved salts and other minerals which coalesce (break) emulsified asphalts to a greater degree than distilled or deionized water. It is recommended that the user evaluate potential local job site water sources such as tap water using this practice before attempting a field dilution.
SCOPE
1.1 This practice covers the suitability of all medium and slow-setting emulsified asphalts to be diluted with water. If desired, other liquids may be substituted for water, such as propylene glycol. It is not applicable to the rapid-setting types.
1.2 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 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.
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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.
Designation:D6999 −19
Standard Practice for
1
Miscibility of Emulsified Asphalts
This standard is issued under the fixed designation D6999; 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.
1. Scope 3.2 All emulsified asphalts with viscosity testing require-
ments of 50 °C shall be heated to 50 6 3 °C in the original
1.1 This practice covers the suitability of all medium and
sample container in a water bath or oven. The container should
slow-setting emulsified asphalts to be diluted with water. If
be vented to relieve pressure. After the sample reaches 50 6
desired, other liquids may be substituted for water, such as
3 °C, stir the sample to achieve homogeneity.
propylene glycol. It is not applicable to the rapid-setting types.
3.3 Emulsified asphalts with viscosity testing requirements
1.2 Units—The values stated in SI units are to be regarded
of 25 °C should be mixed or stirred at 25 6 3 °C in the original
as standard. No other units of measurement are included in this
sample container to achieve homogeneity.
standard.
NOTE 1—Emulsified asphalts with viscosity testing requirements of
1.3 The text of this standard references notes and footnotes
25 °C may be heated and stirred as specified in 3.2, if necessary. In the
which provide explanatory material. These notes and footnotes
event the 3.2 method is used, the sample should be cooled to 25 6 3 °C.
(excluding those in tables and figures) shall not be considered
as requirements of the standard.
4. Significance and Use
1.4 This standard does not purport to address all of the
4.1 It is sometimes desirable to dilute an emulsified asphalt
safety concerns, if any, associated with its use. It is the
in the field with water. This practice is designed to ascertain if
responsibility of the user of this standard to establish appro-
this may be done without irreversibly separating the water and
priate safety, health, and environmental practices and deter-
asphalt (breaking) in the emulsified asphalt.
mine the applicability of regulatory limitations prior to use.
NOTE 2—Water supplies available in some areas contain high levels of
1.5 This international standard was developed in accor-
dissolved salts and other minerals which coalesce (break) emulsified
dance with internationally recognized principles on standard-
asphalts to a greater degree than distilled or deionized water. It is
ization established in the Decision on Principles for the
recommended that the user evaluate potential local job site water sources
such as tap water using this practice before attempting a field dilution.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
5. Apparatus and Materials
Barriers to Trade (TBT) Committee.
5.1 Beaker—Glass, 400-mL capacity.
2. Referenced Documents
5.2 Graduated cylinder—100-mLcapacity, or other suitable
2
2.1 ASTM Standards:
container to approximate 50 mL.
D8055 Guide for Selecting an Appropriate Electronic Ther-
5.3 Graduated cylinder—200-mL capacity
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it 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 version
of the standard as published by ASTM is to be considered the official document.
Designation: D6999 − 12 D6999 − 19
Standard Practice for
1
Miscibility of Emulsified Asphalts
This standard is issued under the fixed designation D6999; 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.
1. Scope
1.1 This practice covers the suitability of all medium and slow-setting emulsified asphalts to be diluted with water. water. If
desired, other liquids may be substituted for water, such as propylene glycol. It is not applicable to the rapid-setting types.
1.2 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this
standard.
1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes
(excluding those in tables and figures) shall not be considered as requirements of the standard.
1.4 This practicestandard does not purport to address all of the safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and
determine the applicability of regulatory limitations prior to use.
1.5 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
2
2.1 ASTM Standards:
D8055 Guide for Selecting an Appropriate Electronic Thermometer for Replacing Mercury Thermometers in D04 Road and
Paving Standards
3. Sample Conditioning for Testing
3.1 All emulsified asphalts shall be properly stirred to achieve homogeneity.
3.2 All emulsified asphalts with viscosity testing requirements of 50°C50 °C shall be heated to 50 6 3°C3 °C in the original
sample container in a water bath or oven. The container should be vented to relieve pressure. After the sample reaches 50 6
3°C,3 °C, stir the sample to achieve homogeneity.
3.3 Emulsified asphalts with viscosity testing requirements of 25°C25 °C should be mixed or stirred at 25 6 3°C3 °C in the
original sample container to achieve homogeneity.
NOTE 1—Emulsified asphalts with viscosity testing requirements of 25°C25 °C may be heated and stirred as specified in 2.23.2, if necessary. In the
event the 2.23.2 method is used, the sample should be cooled to 25 6 3°C.3 °C.
4. Significance and Use
4.1 It is sometimes desirable to dilute an emulsified asphalt in the field with water. This practice is designed to ascertain if this
may be done without irreversibly separating the water and asphalt (breaking) in the emulsified asphalt.
NOTE 2—Water supplies available in some areas contain high levels of dissolved salts and other minerals which coalesce (break) emulsified asphalts
to a greater degree than distilled or deionized water. It is recommended that the user evaluate potential local job site water sources such as tap water using
this practice before attempting a field dilution.
1
This practice is under the jurisdiction of ASTM Committee D04 on Road and Paving Materials and is the direct responsibility of Subcommittee D04.42 on Emulsified
Asphalt Test.
Current edition approved Dec. 1, 2012Dec. 1, 2019. Published December 2012December 2019. Originally approved in 2004. Last previous version published edition
approved in 2012 as D6999 – 04.D6999 – 12. DOI: 10.1520/D6999-12.10.1520/D6999-19.
2
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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D6999 − 19
5. Apparatus and Materials
5.1 Beaker—glass, 400 mL capacityGlass, 400-mL capacity.
5.2 Graduated cylinder—100 mL 100-mL capacity, or other suitable container to approximate 50 mlmL.
5.3 Graduated cylinder—200 mL capacity 200-mL capacity.
5.4 Representative sample of water to be used at the job site or, if not readily available, then distilled or deionized or tap water
may be used. See Note 2
...
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