ASTM D7497-09(2016)
(Practice)Standard Practice for Recovering Residue from Emulsified Asphalt Using Low Temperature Evaporative Technique
Standard Practice for Recovering Residue from Emulsified Asphalt Using Low Temperature Evaporative Technique
SIGNIFICANCE AND USE
3.1 The procedure described in this practice is used to obtain a residue from an emulsified asphalt that may be used for further testing in devices such as a dynamic shear rheometer. The lower evaporative temperatures of this procedure provide conditions that are very close to that of application techniques for these materials. This practice could be used in place of recovery techniques such as those of Test Methods D6934 and D6997, when the temperatures used in those standards would negatively affect the residue.
SCOPE
1.1 This practice covers a method for recovering the residue from emulsified asphalts such as those specified in Specifications D977 and D2397 using a low temperature evaporative technique that is similar to pavement conditions. The recovered residue can be used for further testing as required.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation:D7497 −09 (Reapproved 2016)
Standard Practice for
Recovering Residue from Emulsified Asphalt Using Low
1
Temperature Evaporative Technique
This standard is issued under the fixed designation D7497; 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 eter. The lower evaporative temperatures of this procedure
provide conditions that are very close to that of application
1.1 This practice covers a method for recovering the residue
techniques for these materials. This practice could be used in
from emulsified asphalts such as those specified in Specifica-
place of recovery techniques such as those of Test Methods
tions D977 and D2397 using a low temperature evaporative
D6934 and D6997, when the temperatures used in those
technique that is similar to pavement conditions.The recovered
standards would negatively affect the residue.
residue can be used for further testing as required.
1.2 The values stated in SI units are to be regarded as the 4. Reagents and Materials
standard. The values given in parentheses are for information
4.1 Silicone Mat—The mat used can be similar to that
only.
specified in NF EN 13074 or any mat that will allow an
2
1.3 This standard does not purport to address all of the
emulsified asphalt spread rate of 1.5 to 2.0 kg/m .The mat may
safety concerns, if any, associated with its use. It is the have a lip to contain the emulsified asphalt to the appropriate
responsibility of the user of this standard to establish appro-
area.
priate safety and health practices and determine the applica-
NOTE 1—A silicone mat can be purchased at various restaurant supply
bility of regulatory limitations prior to use.
stores and a good size for this application is a half-sheet pan size to fit in
most laboratory ovens.
2. Referenced Documents
4.2 Spatula—Palette knife or other suitable material for
2
2.1 ASTM Standards:
spreading the emulsified asphalt.
D977 Specification for Emulsified Asphalt
4.3 Forced Draft Oven—Capable of maintaining a tempera-
D2397 Specification for Cationic Emulsified Asphalt
ture of 25 6 2°C and 60 6 2°C. The racks should be able to
D6934 Test Method for Residue by Evaporation of Emulsi-
be spaced a minimum of 10 cm from the top and bottom of the
fied Asphalt
oven and with a spacing of a minimum of 4 cm between racks
D6997 Test Method for Distillation of Emulsified Asphalt
with samples. The oven racks must be checked for level, with
2.2 Other Standard:
a bubble level of 250 mm minimum length, from side to side
NF EN 13074 Recovery of Binder from Bitumen Emulsions
and front to back of the oven.
3
by Evaporation
5. Procedure
3. Significance and Use
5.1 Pour the required amount of emulsified asphalt onto the
3.1 The procedure described in this practice is used to
silicone mat and spread evenly with a spatula to give a spread
obtain a residue from an emulsified asphalt that may be used 2
rate of 1.5 to 2.0 kg/m of emulsified asphalt. The silicone mat
for further testing in devices such as a dynamic shear rheom-
should be supported by an oven tray or other flat tray or pan
that will allow easy transfer to an oven. Table 1 may be used
as a guide for the quantities of emulsified asphalt necessary to
1
This practice is under the jurisdiction of ASTM Committee D04 on Road and
give the appropriate spread rate for a given area.
Paving Materials and is the direct responsibility of Subcommittee D04.42 on
Emulsified Asphalt Test.
5.2 Place the silicone mat with the emulsified asphalt into a
Current edition approved July 1, 2016. Published August 2016. Originally
25 6 2°C forced draft oven for 24 61h.
approved in 2009. Last previous edition approved in 2009 as D7497 – 09. DOI:
10.1520/D7497-09R16.
5.3 Transfer the silicone mat with the emulsified asphalt to
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
a60 6 2°C forced draft oven for 24 61h.
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
5.4 Remove the silicone mat with the emulsified asphalt
the ASTM website.
3
residue from the 60°C oven and allow to cool at ambient lab
Available from AFNOR (French Standard Institute), 11, rue Francis de
Pressensé 93571 La Plaine Saint-Denis Cedex, France, http://www.afnor.org. conditions for one hour prior to removal from the mat.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D7497−09 (2016)
TABLE 1 Emulsified Asphalt Quantity by Mat Area for Appropriat
...
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: D7497 − 09 D7497 − 09 (Reapproved 2016)
Standard Practice for
Recovering Residue from Emulsified Asphalt Using Low
1
Temperature Evaporative Technique
This standard is issued under the fixed designation D7497; 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 a method for recovering the residue from emulsified asphalts such as those specified in Specifications
D977 and D2397 using a low temperature evaporative technique that is similar to pavement conditions. The recovered residue can
be used for further testing as required.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
D977 Specification for Emulsified Asphalt
D2397 Specification for Cationic Emulsified Asphalt
D6934 Test Method for Residue by Evaporation of Emulsified Asphalt
D6997 Test Method for Distillation of Emulsified Asphalt
2.2 Other Standard:
3
NF EN 13074 Recovery of Binder from Bitumen Emulsions by Evaporation
3. Significance and Use
3.1 The procedure described in this practice is used to obtain a residue from an emulsified asphalt that may be used for further
testing in devices such as a dynamic shear rheometer. The lower evaporative temperatures of this procedure provide conditions that
are very close to that of application techniques for these materials. This practice could be used in place of recovery techniques such
as those of Test Methods D6934 and D6997, when the temperatures used in those standards would negatively affect the residue.
4. Reagents and Materials
4.1 Silicone Mat—The mat used can be similar to that specified in NF EN 13074 or any mat that will allow an emulsified asphalt
2
spread rate of 1.5–2.0 1.5 to 2.0 kg/m . The mat may have a lip to contain the emulsified asphalt to the appropriate area.
NOTE 1—A silicone mat can be purchased at various restaurant supply stores and a good size for this application is a half-sheet pan size to fit in most
laboratory ovens.
4.2 Spatula—Palette knife or other suitable material for spreading the emulsified asphalt.
4.3 Forced Draft Oven—Capable of maintaining a temperature of 25ºC25 6 2ºC2°C and 60ºC60 6 2ºC.2°C. The racks should
be able to be spaced a minimum of 10 cm from the top and bottom of the oven and with a spacing of a minimum of 4 cm between
racks with samples. The oven racks must be checked for level, with a bubble level of 250 mm minimum length, from side to side
and front to back of the oven.
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 Jan. 1, 2009July 1, 2016. Published January 2009August 2016. Originally approved in 2009. Last previous edition approved in 2009 as
D7497 – 09. DOI: 10.1520/D7497-09.10.1520/D7497-09R16.
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.
3
Available from AFNOR (French Standard Institute), 11, rue Francis de Pressensé 93571 La Plaine Saint-Denis Cedex, France, http://www.afnor.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D7497 − 09 (2016)
5. Procedure
5.1 Pour the required amount of emulsified asphalt onto the silicone mat and spread evenly with a spatula to give a spread rate
2 2
of 1.5 kg/m to 2.0 kg/m of emulsified asphalt. The silicone mat should be supported by an oven tray or other flat tray or pan that
will allow easy transfer to an oven. Table 1 may be used as a guide for the quantities of emulsified asphalt necessary to give the
appropriate spread rate for a given area.
5.2 Place the silicone mat with the emulsified asphalt into a 25ºC25 6 2ºC2°C
...
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