ASTM D6999-12
(Practice)Standard Practice for Miscibility of Emulsified Asphalts
Standard Practice for Miscibility of Emulsified Asphalts
SIGNIFICANCE AND USE
3.1 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.. It is not applicable to the rapid-setting types.
1.2 This practice 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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: D6999 −12
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.
NOTE 2—Water supplies available in some areas contain high levels of
1. Scope
dissolved salts and other minerals which coalesce (break) emulsified
1.1 This practice covers the suitability of all medium and
asphalts to a greater degree than distilled or deionized water. It is
slow-setting emulsified asphalts to be diluted with 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.
not applicable to the rapid-setting types.
1.2 This practice does not purport to address all of the
4. Apparatus and Materials
safety concerns, if any, associated with its use. It is the
4.1 Beaker—glass, 400 mL capacity
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4.2 Graduated cylinder—100 mL capacity, or other suitable
bility of regulatory limitations prior to use.
container to approximate 50 ml
4.3 Graduated cylinder—200 mL capacity
2. Sample Conditioning for Testing
4.4 Representative sample of water to be used at the job site
2.1 All emulsified asphalts shall be properly stirred to
or if not readily available then distilled or deionized or tap
achieve homogeneity.
water may be used. See Note 2 for guidance.
2.2 All emulsified asphalts with viscosity testing require-
4.5 Thermometer—A thermometric device capable of mea-
ments of 50°C shall be heated to 50 6 3°C in the original
suring the temperatures of 25C and 50C to a tolerance of 6
sample container in a water bath or oven. The container should
3C
be vented to relieve pressure. After the sample reaches 50 6
3°C, stir the sample to achieve homogeneity.
5. Procedure
2.3 Emulsified asphalts with viscosity testing requirements
5.1 Place approximately 50 mL of the 25 6 3°C emulsified
of 25°C should be mixed or stirred at 25 6 3°C in the original
asphalt into a 400-mL glass beaker.
sample container to achieve homogeneity.
5.2 Gradually add 150 mLof 25 6 3°C water, with constant
NOTE 1—Emulsified asphalts with viscosity testing requirements of
stirring.Allow the mixture to stand for 2 h; then examine it for
25°C may be heated and stirred as specified in 2.2, if necessary. In the
event the 2.2 method is used, the sa
...
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 − 04 D6999 − 12
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. asphalts to be diluted with water.
It is not applicable to the rapid-setting types.
1.2 This practice 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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
E1 Specification for ASTM Liquid-in-Glass Thermometers
2. Sample Conditioning for Testing
2.1 All emulsified asphalts shall be properly stirred to achieve homogeneity.
2.2 All emulsified asphalts with viscosity testing requirements of 50°C shall be heated to 50 6 3°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, stir the
sample to achieve homogeneity.
2.3 Emulsified asphalts with viscosity testing requirements of 25°C should be mixed or stirred at 25 6 3°C in the original
sample container to achieve homogeneity.
NOTE 1—Emulsified asphalts with viscosity testing requirements of 25°C may be heated and stirred as specified in 3.22.2, if necessary. In the event
the 3.22.2 method is used, the sample should be cooled to 25 6 3°C.
3. Significance and Use
3.1 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 safely without breaking the 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.
4. Apparatus and Materials
4.1 Beaker—glass, 400 mL capacity
4.2 Graduated cylinder—100 mL capacitycapacity, or other suitable container to approximate 50 ml
4.3 Graduated cylinder—200 mL capacity
4.4 Distilled or deionized water 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 for
...
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