ASTM D6929-16
(Practice)Standard Practice to Evaluate the Effect of Freezing on Emulsified Asphalts
Standard Practice to Evaluate the Effect of Freezing on Emulsified Asphalts
SIGNIFICANCE AND USE
2.1 Certain agencies who desire to use, store, or transport emulsified asphalt under less than ideal weather conditions may require that the product remain homogeneous (unbroken) after being subjected to a temperature of −18 °C.
SCOPE
1.1 Emulsified asphalt is normally damaged by freezing temperatures, but specially formulated materials are expected to pass this practice.
1.2 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 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: D6929 −16
Standard Practice to
1
Evaluate the Effect of Freezing on Emulsified Asphalts
This standard is issued under the fixed designation D6929; 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 3.3 Emulsified asphalts with viscosity testing requirements
of25 °Cshouldbemixedorstirredat25 63 °Cintheoriginal
1.1 Emulsified asphalt is normally damaged by freezing
sample container to achieve homogeneity.
temperatures, but specially formulated materials are expected
to pass this practice.
NOTE 1—Emulsified asphalts with viscosity testing requirements of
25 °C may be heated and stirred as specified in 3.2, if necessary. In the
1.2 The values stated in SI units are to be regarded as
event the 3.2 method is used, the sample should be cooled to 25 6 3 °C.
standard. No other units of measurement are included in this
4. Apparatus
standard.
4.1 Freezer—Capable of maintaining a test temperature of
1.3 The text of this standard references notes and footnotes
–18 6 5 °C.
which provide explanatory material.These notes and footnotes
(excluding those in tables and figures) shall not be considered
4.2 Metal Container—such as a 500-mL press-top can.
as requirements of the standard.
4.3 Glass Stirring Rod—of optional size.
1.4 This practice does not purport to address all of the
5. Procedure
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
5.1 Place approximately 400 g of the emulsified asphalt in a
priate safety and health practices and determine the applica-
clean metal container.
bility of regulatory limitations prior to use.
5.2 Expose the emulsified asphalt in the closed container to
an air temperature of −18 6 5 °C for 12 to 18 consecutive
2. Significance and Use
hours.
2.1 Certain agencies who desire to use, store, or transport
5.3 At the expiration of the freezing period, permit the
emulsified asphalt under less than ideal weather conditions
emulsified asphalt to thaw by exposure of the container to
may require that the product remain homogeneous (unbroken)
ambient temperature.
after being subjected to a temperature of −18 °C.
5.4 Repeat the freezing and thawing periods until the
3. Sample Conditioning
emulsified asphalt has been subjected to three cycles of
freezing and thawing.
3.1 All emulsified asphalts shall be properly stirred to
achieve homogeneity.
5.5 After the third cycle, the emulsified
...
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: D6929 − 10 D6929 − 16
Standard Practice for to
Freezing ofEvaluate the Effect of Freezing on Emulsified
1
Asphalts
This standard is issued under the fixed designation D6929; 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 Emulsified asphalt is normally damaged by freezing temperatures, but specially formulated materials are expected to pass
this practice.
1.2 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 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. Significance and Use
2.1 Certain agencies,agencies who desire to use, store, or transport emulsified asphalt under less than ideal weather
conditions,conditions may require that the product remain homogeneous (unbroken) after being subjected to temperatures a
temperature of −18°C.−18 °C.
3. Sample Conditioning
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 3.2, if necessary. In the event
the 3.2 method is used, the sample should be cooled to 25 6 3°C.3 °C.
4. Apparatus
4.1 Freezer—Capable of maintaining a test temperature of -1865°C.–18 6 5 °C.
4.2 Metal Container—such as a 500 mL 500-mL press-top can.
4.3 Glass Stirring Rod—of optional size.
5. Procedure
5.1 Place approximately 400 g of the emulsified asphalt in a clean metal container.
5.2 Expose the emulsified asphalt in the closed container to an
...
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