ASTM D7497-21
(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 those 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.
Note 1: The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and the capability, calibration, and maintenance of the equipment used. Agencies that meet the criteria of Specification D3666 are generally considered capable of competent and objective testing, sampling, inspection, etc. Users of this standard are cautioned that compliance with Specification D3666 alone does not completely ensure reliable results. Reliable results depend on many factors; following the suggestions of Specification D3666 or some similar acceptable guideline provides a means of evaluating and controlling some of those factors.
SCOPE
1.1 This practice covers a method for recovering the residue from emulsified asphalts such as those specified in Specifications D977 and D2397/D2397M 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 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.
General Information
- Status
- Published
- Publication Date
- 30-Apr-2021
- Technical Committee
- D04 - Road and Paving Materials
- Drafting Committee
- D04.42 - Emulsified Asphalt Test
Relations
- Effective Date
- 01-Nov-2019
- Effective Date
- 01-Nov-2019
- Effective Date
- 01-Nov-2019
- Effective Date
- 01-May-2019
- Effective Date
- 01-May-2019
- Effective Date
- 01-Jun-2017
- Effective Date
- 01-Jun-2017
- Effective Date
- 01-Oct-2016
- Effective Date
- 01-Dec-2013
- Effective Date
- 01-Dec-2013
- Effective Date
- 01-Jun-2013
- Effective Date
- 01-Jun-2013
- Effective Date
- 01-Dec-2012
- Effective Date
- 01-Jul-2012
- Effective Date
- 01-Feb-2012
Overview
ASTM D7497-21 is the established standard practice for recovering residue from emulsified asphalt using a low-temperature evaporative technique. Developed by ASTM International, this standard offers a reliable procedure for obtaining an asphalt residue under conditions that closely simulate real-world pavement applications. By using lower evaporation temperatures, ASTM D7497-21 ensures that the physical characteristics of the asphalt residue remain representative of the materials as applied in the field. This standard is particularly valuable for laboratories and agencies seeking to perform further testing, such as with dynamic shear rheometers, without altering the material properties with unnecessary heat.
Key Topics
- Low-Temperature Recovery: Emphasizes residue extraction from emulsified asphalt at temperatures that prevent degradation or unwanted changes in the binder’s physical properties.
- Material Compatibility: Suitable for emulsified asphalts covered under ASTM D977 and ASTM D2397/D2397M specifications, making it widely applicable in road and paving material testing.
- Practical Laboratory Approach: Utilizes common materials such as silicone mats and forced-draft ovens for controlled, repeatable results.
- Quality Assurance: Highlights the importance of skilled personnel, calibrated equipment, and adherence to best practices for accurate testing outcomes.
- Alternative to High-Temperature Methods: Provides a practical substitute for ASTM D6934 and ASTM D6997, where higher process temperatures could negatively affect residue characteristics.
Applications
ASTM D7497-21 is particularly useful in the following contexts:
- Pavement Material Testing Laboratories: Enables laboratories to recover asphalt residue in conditions closely aligned with those experienced during pavement construction, supporting more accurate performance testing.
- Dynamic Shear Rheometer Preparation: Supports specimen preparation for testing in devices that measure the viscoelastic properties of asphalt binders, crucial for performance grading and material characterization.
- Research and Development: Facilitates comparative studies between low-temperature and traditional high-temperature recovery methods, contributing to advancements in asphalt technology.
- Specification Compliance: Assists materials suppliers and testing agencies in meeting project specification requirements for residue recovery, ensuring consistency and reliability.
- Alternative Recovery Technique: Ideal whenever high-temperature processes risk compromising the integrity of the recovered asphalt binder.
Related Standards
ASTM D7497-21 aligns with and references several important standards and specifications:
- ASTM D977: Specification for Emulsified Asphalt.
- ASTM D2397/D2397M: Specification for Cationic Emulsified Asphalt.
- ASTM D3666: Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials - ensures laboratory competence and procedural oversight.
- ASTM D6934: Test Method for Residue by Evaporation of Emulsified Asphalt - a higher temperature alternative.
- ASTM D6997: Test Method for Distillation of Emulsified Asphalt - an alternative recovery technique.
- NF EN 13074: European standard for recovery of binder from bitumen emulsions by evaporation, referenced for compatible materials and methods.
By implementing ASTM D7497-21, laboratories and agencies can obtain reliable recovering residue from emulsified asphalt, leading to better material evaluation and compliance with modern quality assurance protocols in the construction and maintenance of asphalt pavements. This standard is essential for professionals seeking consistent, representative results in the field of emulsified asphalt materials testing.
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Frequently Asked Questions
ASTM D7497-21 is a standard published by ASTM International. Its full title is "Standard Practice for Recovering Residue from Emulsified Asphalt Using Low-Temperature Evaporative Technique". This standard covers: 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 those 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. Note 1: The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and the capability, calibration, and maintenance of the equipment used. Agencies that meet the criteria of Specification D3666 are generally considered capable of competent and objective testing, sampling, inspection, etc. Users of this standard are cautioned that compliance with Specification D3666 alone does not completely ensure reliable results. Reliable results depend on many factors; following the suggestions of Specification D3666 or some similar acceptable guideline provides a means of evaluating and controlling some of those factors. SCOPE 1.1 This practice covers a method for recovering the residue from emulsified asphalts such as those specified in Specifications D977 and D2397/D2397M 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 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.
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 those 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. Note 1: The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and the capability, calibration, and maintenance of the equipment used. Agencies that meet the criteria of Specification D3666 are generally considered capable of competent and objective testing, sampling, inspection, etc. Users of this standard are cautioned that compliance with Specification D3666 alone does not completely ensure reliable results. Reliable results depend on many factors; following the suggestions of Specification D3666 or some similar acceptable guideline provides a means of evaluating and controlling some of those factors. SCOPE 1.1 This practice covers a method for recovering the residue from emulsified asphalts such as those specified in Specifications D977 and D2397/D2397M 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 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.
ASTM D7497-21 is classified under the following ICS (International Classification for Standards) categories: 93.080.20 - Road construction materials. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM D7497-21 has the following relationships with other standards: It is inter standard links to ASTM D977-19a, ASTM D977-19ae1, ASTM D2397/D2397M-19a, ASTM D977-19, ASTM D2397/D2397M-19, ASTM D977-17, ASTM D2397/D2397M-17, ASTM D3666-16, ASTM D2397/D2397M-13, ASTM D3666-13, ASTM D977-13, ASTM D977-13e1, ASTM D977-12b, ASTM D977-12a, ASTM D977-12. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM D7497-21 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
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:D7497 −21
Standard Practice for
Recovering Residue from Emulsified Asphalt Using Low-
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 D3666 Specification for Minimum Requirements for Agen-
cies Testing and Inspecting Road and Paving Materials
1.1 This practice covers a method for recovering the residue
D6934 Test Method for Residue by Evaporation of Emulsi-
from emulsified asphalts such as those specified in Specifica-
fied Asphalt
tions D977 and D2397/D2397M using a low-temperature
D6997 Test Method for Distillation of Emulsified Asphalt
evaporative technique that is similar to pavement conditions.
The recovered residue can be used for further testing as 2.2 Other Standard:
NF EN 13074 Recovery of Binder from Bitumen Emulsions
required.
by Evaporation
1.2 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
3. Significance and Use
only.
3.1 The procedure described in this practice is used to
1.3 The text of this standard references notes and footnotes
obtain a residue from an emulsified asphalt that may be used
which provide explanatory material. These notes and footnotes
for further testing in devices such as a dynamic shear rheom-
(excluding those in tables and figures) shall not be considered
eter. The lower evaporative temperatures of this procedure
as requirements of the standard.
provide conditions that are very close to those of application
1.4 This standard does not purport to address all of the
techniques for these materials. This practice could be used in
safety concerns, if any, associated with its use. It is the
place of recovery techniques such as those of Test Methods
responsibility of the user of this standard to establish appro-
D6934 and D6997, when the temperatures used in those
priate safety, health, and environmental practices and deter-
standards would negatively affect the residue.
mine the applicability of regulatory limitations prior to use.
NOTE 1—The quality of the results produced by this standard are
1.5 This international standard was developed in accor-
dependent on the competence of the personnel performing the procedure
dance with internationally recognized principles on standard-
and the capability, calibration, and maintenance of the equipment used.
ization established in the Decision on Principles for the
Agencies that meet the criteria of Specification D3666 are generally
Development of International Standards, Guides and Recom-
considered capable of competent and objective testing, sampling,
inspection, etc. Users of this standard are cautioned that compliance with
mendations issued by the World Trade Organization Technical
Specification D3666 alone does not completely ensure reliable results.
Barriers to Trade (TBT) Committee.
Reliable results depend on many factors; following the suggestions of
Specification D3666 or some similar acceptable guideline provides a
2. Referenced Documents
means of evaluating and controlling some of those factors.
2.1 ASTM Standards:
4. Reagents and Materials
D977 Specification for Emulsified Asphalt
D2397/D2397M Specification for Cationic Emulsified As-
4.1 Silicone Mat—The mat used can be similar to that
phalt
specified in NF EN 13074 or any mat that will allow an
emulsified asphalt spread rate of 1.5 to 2.0 kg/m .The mat may
have a lip to contain the emulsified asphalt to the appropriate
area.
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
NOTE 2—A silicone mat can be purchased at various restaurant supply
Emulsified Asphalt Test.
stores and a good size for this application is a half-sheet pan size to fit in
Current edition approved May 1, 2021. Published May 2021. Originally
most laboratory ovens.
approved in 2009. Last previous edition approved in 2016 as D7497 – 09 (2016).
DOI: 10.1520/D7497-21.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contac
...
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 (Reapproved 2016) D7497 − 21
Standard Practice for
Recovering Residue from Emulsified Asphalt Using Low
Temperature Low-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 D2397D2397/D2397M using a low temperature 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.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.
2. Referenced Documents
2.1 ASTM Standards:
D977 Specification for Emulsified Asphalt
D2397D2397/D2397M Specification for Cationic Emulsified Asphalt
D3666 Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
D6934 Test Method for Residue by Evaporation of Emulsified Asphalt
D6997 Test Method for Distillation of Emulsified Asphalt
2.2 Other Standard:
NF EN 13074 Recovery of Binder from Bitumen Emulsions by Evaporation
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 July 1, 2016May 1, 2021. Published August 2016May 2021. Originally approved in 2009. Last previous edition approved in 20092016 as
D7497 – 09.D7497 – 09 (2016). DOI: 10.1520/D7497-09R16.10.1520/D7497-21.
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.
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
D7497 − 21
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 thatthose 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.
NOTE 1—The quality of the results produced by this standard are dependent on the competence of the personnel performing the procedure and the
capability, calibration, and maintenance of the equipment used. Agencies that meet the criteria of Specification D3666 are generally considered capable
of competent and objective testing, sampling, inspection, etc. Users of this standard are cautioned that compliance with Specification D3666 alone d
...
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