ASTM D7173-20
(Practice)Standard Practice for Determining the Separation Tendency of Polymer from Polymer-Modified Asphalt
Standard Practice for Determining the Separation Tendency of Polymer from Polymer-Modified Asphalt
SIGNIFICANCE AND USE
4.1 Purchasers of polymer-modified asphalt need guidelines on proper storage and handling procedures to maintain the integrity of material they have purchased. This practice provides a significant tool for understanding the characteristics of these materials as well as comparing various sources of supply.
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 describes a laboratory procedure for determining the tendency of polymer to separate from polymer-modified asphalt under static heated storage conditions. The results of testing on material prepared according to this practice may be used as a guideline when formulating products or to establish field handling procedures. Large differences in test results between top and bottom specimens indicate that there is a degree of incompatibility between the polymer and the base asphalt.
1.2 The values stated in SI units are to be regarded as the 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.
General Information
- Status
- Published
- Publication Date
- 30-Apr-2020
- Technical Committee
- D04 - Road and Paving Materials
- Drafting Committee
- D04.47 - Miscellaneous Asphalt Tests
Relations
- Effective Date
- 01-May-2020
- Effective Date
- 15-Dec-2023
- Effective Date
- 01-May-2020
- Effective Date
- 01-Mar-2020
- Effective Date
- 01-Oct-2016
- Effective Date
- 01-Dec-2015
- Effective Date
- 01-Jul-2014
- Effective Date
- 01-Dec-2013
- Refers
ASTM D36/D36M-12 - Standard Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus) - Effective Date
- 01-May-2012
- Effective Date
- 01-Dec-2011
- Effective Date
- 01-Jan-2010
- Refers
ASTM D36/D36M-09 - Standard Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus) - Effective Date
- 15-Dec-2009
- Effective Date
- 01-Dec-2009
- Effective Date
- 15-Jul-2008
- Effective Date
- 01-Jul-2008
Overview
ASTM D7173-20 is the international standard practice for determining the separation tendency of polymer from polymer-modified asphalt during static heated storage. Developed by ASTM International, this standard outlines a laboratory procedure used to evaluate the compatibility of the polymer-asphalt blend under elevated temperature conditions typically encountered during storage. The results serve as a guideline for both product formulation and field handling procedures, ensuring buyers and users of polymer-modified asphalt maintain the quality and integrity of the material throughout the supply chain.
Key Topics
- Polymer-Modified Asphalt Compatibility: The main purpose of ASTM D7173-20 is to assess the potential for polymer separation in polymer-modified asphalt. Large differences in testing results between the top and bottom specimens after heated storage point to incompatibility.
- Laboratory Storage Simulation: The standard details a 48-hour conditioning process at elevated temperatures using specific equipment, simulating field storage conditions.
- Sample Handling and Testing: After the storage conditioning, the top and bottom sections of the asphalt sample are tested, often using softening point or rheological property tests, to detect any separation.
- Quality Assurance: Emphasizes the significance of competent personnel and properly calibrated, maintained equipment in achieving reliable and repeatable results.
- Reference to Other Standards: The practice references several related ASTM standards for test methods and minimum requirements for agencies performing these evaluations.
Applications
ASTM D7173-20 is widely used across the road construction and materials supply industry for:
- Material Selection and Formulation: Enabling manufacturers to develop polymer-modified asphalts with improved storage stability and compatibility, thereby optimizing product performance.
- Storage and Handling Guidelines: Providing users and purchasers of polymer-modified asphalt with protocols to prevent performance degradation due to polymer separation during storage.
- Quality Control and Supplier Comparison: Serving as a benchmark for comparing different sources or suppliers of polymer-modified asphalt, ensuring consistent material quality before application in road paving or maintenance.
- Regulatory Compliance: Assisting agencies and contractors in satisfying procurement requirements for paving materials by demonstrating adherence to standardized procedures.
Related Standards
The following ASTM standards are commonly referenced in conjunction with ASTM D7173-20 for asphalt testing and quality control:
- ASTM D36/D36M - Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus)
- ASTM D3666 - Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
- ASTM D7175 - Test Method for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer
- ASTM D7405 - Test Method for Multiple Stress Creep and Recovery (MSCR) of Asphalt Binder
Practical Value
The use of ASTM D7173-20 ensures the long-term performance and integrity of polymer-modified asphalt, a material critical to modern road construction. By following this standardized approach, manufacturers, suppliers, and end-users can better prevent issues related to polymer separation, safeguarding against premature pavement failures and optimizing lifecycle costs. Moreover, standardized testing fosters trust in material quality, supporting infrastructure projects' reliability and safety on both national and international levels.
Keywords: polymer-modified asphalt, asphalt separation, storage stability, ASTM D7173, asphalt compatibility, quality control, road construction materials, polymer asphalt testing.
Buy Documents
ASTM D7173-20 - Standard Practice for Determining the Separation Tendency of Polymer from Polymer-Modified Asphalt
REDLINE ASTM D7173-20 - Standard Practice for Determining the Separation Tendency of Polymer from Polymer-Modified Asphalt
Get Certified
Connect with accredited certification bodies for this standard
ABS Quality Evaluations Inc.
American Bureau of Shipping quality certification.
Element Materials Technology
Materials testing and product certification.
ABS Group Brazil
ABS Group certification services in Brazil.
Sponsored listings
Frequently Asked Questions
ASTM D7173-20 is a standard published by ASTM International. Its full title is "Standard Practice for Determining the Separation Tendency of Polymer from Polymer-Modified Asphalt". This standard covers: SIGNIFICANCE AND USE 4.1 Purchasers of polymer-modified asphalt need guidelines on proper storage and handling procedures to maintain the integrity of material they have purchased. This practice provides a significant tool for understanding the characteristics of these materials as well as comparing various sources of supply. 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 describes a laboratory procedure for determining the tendency of polymer to separate from polymer-modified asphalt under static heated storage conditions. The results of testing on material prepared according to this practice may be used as a guideline when formulating products or to establish field handling procedures. Large differences in test results between top and bottom specimens indicate that there is a degree of incompatibility between the polymer and the base asphalt. 1.2 The values stated in SI units are to be regarded as the 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.
SIGNIFICANCE AND USE 4.1 Purchasers of polymer-modified asphalt need guidelines on proper storage and handling procedures to maintain the integrity of material they have purchased. This practice provides a significant tool for understanding the characteristics of these materials as well as comparing various sources of supply. 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 describes a laboratory procedure for determining the tendency of polymer to separate from polymer-modified asphalt under static heated storage conditions. The results of testing on material prepared according to this practice may be used as a guideline when formulating products or to establish field handling procedures. Large differences in test results between top and bottom specimens indicate that there is a degree of incompatibility between the polymer and the base asphalt. 1.2 The values stated in SI units are to be regarded as the 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.
ASTM D7173-20 is classified under the following ICS (International Classification for Standards) categories: 75.140 - Waxes, bituminous materials and other petroleum products. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM D7173-20 has the following relationships with other standards: It is inter standard links to ASTM D7173-14, ASTM D7175-23, ASTM D36/D36M-14(2020), ASTM D7405-20, ASTM D3666-16, ASTM D7405-15, ASTM D36/D36M-14, ASTM D3666-13, ASTM D36/D36M-12, ASTM D3666-11, ASTM D7405-10, ASTM D36/D36M-09, ASTM D3666-09a, ASTM D7175-08, ASTM D7405-08a. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM D7173-20 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: D7173 −20
Standard Practice for
Determining the Separation Tendency of Polymer from
Polymer-Modified Asphalt
This standard is issued under the fixed designation D7173; 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 D36/D36M Test Method for Softening Point of Bitumen
(Ring-and-Ball Apparatus)
1.1 This practice describes a laboratory procedure for de-
D3666 Specification for Minimum Requirements for Agen-
termining the tendency of polymer to separate from polymer-
cies Testing and Inspecting Road and Paving Materials
modified asphalt under static heated storage conditions. The
D7175 Test Method for Determining the Rheological Prop-
resultsoftestingonmaterialpreparedaccordingtothispractice
erties of Asphalt Binder Using a Dynamic Shear Rheom-
may be used as a guideline when formulating products or to
eter
establish field handling procedures. Large differences in test
results between top and bottom specimens indicate that there is D7405 Test Method for Multiple Stress Creep and Recovery
a degree of incompatibility between the polymer and the base (MSCR) of Asphalt Binder Using a Dynamic Shear
asphalt.
Rheometer
1.2 The values stated in SI units are to be regarded as the
3. Summary of Practice
standard. No other units of measurement are included in this
standard.
3.1 A measured quantity of polymer-modified asphalt in a
1.3 The text of this standard references notes and footnotes
sealed aluminum tube is conditioned in a vertical position for
which provide explanatory material. These notes and footnotes
48 h at a temperature of 163 6 5 °C. At the end of the
(excluding those in tables and figures) shall not be considered
conditioning period, top and bottom portions are separated and
as requirements of the standard.
subjected to further testing to determine the degree of separa-
tion. Tests chosen for this purpose depend on the polymer
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the modification system being evaluated and the type of informa-
responsibility of the user of this standard to establish appro- tion desired by the user. Softening point (Test Method D36/
priate safety, health, and environmental practices and deter-
D36M) and DSR (Test Method D7175) are the most common
mine the applicability of regulatory limitations prior to use.
tests used for this purpose. MSCR (Test Method D7405)isan
1.5 This international standard was developed in accor-
alternate test.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
4. Significance and Use
Development of International Standards, Guides and Recom-
4.1 Purchasers of polymer-modified asphalt need guidelines
mendations issued by the World Trade Organization Technical
on proper storage and handling procedures to maintain the
Barriers to Trade (TBT) Committee.
integrity of material they have purchased. This practice pro-
2. Referenced Documents
vides a significant tool for understanding the characteristics of
these materials as well as comparing various sources of supply.
2.1 ASTM Standards:
NOTE 1—The quality of the results produced by this standard are
This practice is under the jurisdiction of ASTM Committee D04 on Road and
dependent on the competence of the personnel performing the procedure
Paving Materials and is the direct responsibility of Subcommittee D04.47 on
and the capability, calibration, and maintenance of the equipment used.
Miscellaneous Asphalt Tests.
Agencies that meet the criteria of Specification D3666 are generally
Current edition approved May 1, 2020. Published May 2020. Originally
considered capable of competent and objective testing, sampling,
approved in 2005. Last previous edition approved in 2014 as D7173 – 14. DOI:
inspection, etc. Users of this standard are cautioned that compliance with
10.1520/D7173-20.
2 Specification D3666 alone does not completely ensure reliable results.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Reliable results depend on many factors; following the suggestions of
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Specification D3666 or some similar acceptable guideline provides a
Standards volume information, refer to the standard’s Document Summary page o
...
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: D7173 − 14 D7173 − 20
Standard Practice for
Determining the Separation Tendency of Polymer from
Polymer Modified Polymer-Modified Asphalt
This standard is issued under the fixed designation D7173; 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 describes a laboratory procedure for determining the tendency of polymer to separate from polymer modified
polymer-modified asphalt under static heated storage conditions. The results of testing on material prepared according to this
practice may be used as a guideline when formulating products or to establish field handling procedures. Large differences in test
results between top and bottom specimens indicate that there is a degree of incompatibility between the polymer and the base
asphalt.
1.2 The values stated in SI units are to be regarded as the 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 safety, health, and healthenvironmental practices and to 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:
D36D36/D36M Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus)
D3666 Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
D7175 Test Method for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer
D7405 Test Method for Multiple Stress Creep and Recovery (MSCR) of Asphalt Binder Using a Dynamic Shear Rheometer
3. Summary of Practice
3.1 A measured quantity of polymer modified polymer-modified asphalt in a sealed aluminum tube is conditioned in a vertical
position for 48 h at a temperature of 163 6 5°C.5 °C. At the end of the conditioning period, top and bottom portions are separated
and subjected to further testing to determine the degree of separation. Tests chosen for this purpose depend on the polymer
modification system being evaluated and the type of information desired by the user. Softening Pointpoint (Test Method
D36D36/D36M) and DSR (Test Method D7175) are the most common tests used for this purpose. MSCR (Test Method D7405)
is an alternate test.
4. Significance and Use
4.1 Purchasers of polymer modified polymer-modified asphalt need to be given guidelines on proper storage and handling
procedures to maintain the integrity of material they have purchased. This practice provides a significant tool for understanding
the characteristics of these materials as well as comparing various sources of supply.
This practice is under the jurisdiction of ASTM Committee D04 on Road and Paving Materials and is the direct responsibility of Subcommittee D04.47 on Miscellaneous
Asphalt Tests.
Current edition approved June 1, 2014May 1, 2020. Published July 2014May 2020. Originally approved in 2005. Last previous edition approved in 20112014 as
D7173 – 11.D7173 – 14. DOI: 10.1520/D7173-14.10.1520/D7173-20.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D7173 − 20
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, in
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...