ASTM D6930-19

Standard Test Method for Settlement and Storage Stability of Emulsified Asphalts

SIGNIFICANCE AND USE
3.1 This test method is useful for determining, in a comparatively short time, the storage stability or settlement of an emulsified asphalt. It is a measure of the permanence of the dispersion as related to time, but it is not to be construed to have significance as a measure of other stability aspects involved in use.
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 acceptance guideline provides a means of evaluating and controlling some of those factors.
SCOPE
1.1 This test method covers the ability of an emulsified asphalt to remain as a uniform dispersion during storage. It is applicable to emulsified asphalts composed principally of a semisolid or liquid asphaltic base, water, and an emulsifying agent.  
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 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-Jun-2019
• ICS: 93.080.20 - Road construction materials
• Technical Committee: D04 - Road and Paving Materials
• Drafting Committee: D04.42 - Emulsified Asphalt Test

Relations

• Replaces: ASTM D6930-10 - Standard Test Method for Settlement and Storage Stability of Emulsified Asphalts
• Effective Date: 01-Jul-2019
• Refers: ASTM D3666-16 - Standard Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
• Effective Date: 01-Oct-2016
• Refers: ASTM D3666-13 - Standard Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
• Effective Date: 01-Dec-2013
• Refers: ASTM D3666-11 - Standard Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
• Effective Date: 01-Dec-2011
• Refers: ASTM D3666-09a - Standard Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
• Effective Date: 01-Dec-2009
• Refers: ASTM D6934-08 - Standard Test Method for Residue by Evaporation of Emulsified Asphalt
• Effective Date: 01-Jul-2008
• Refers: ASTM D3666-07a - Standard Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
• Effective Date: 01-Aug-2007
• Refers: ASTM D3666-07ae1 - Standard Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
• Effective Date: 01-Aug-2007
• Refers: ASTM D3666-07 - Standard Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
• Effective Date: 15-Jan-2007
• Refers: ASTM D3666-07e1 - Standard Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
• Effective Date: 15-Jan-2007
• Refers: ASTM D3666-07e2 - Standard Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
• Effective Date: 15-Jan-2007
• Refers: ASTM D3666-06 - Standard Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
• Effective Date: 01-Jun-2006
• Refers: ASTM D3666-05a - Standard Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
• Effective Date: 01-Jun-2005
• Refers: ASTM D3666-05 - Standard Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
• Effective Date: 01-Feb-2005
• Refers: ASTM D6934-04 - Standard Test Method for Residue by Evaporation of Emulsified Asphalt
• Effective Date: 01-Aug-2004

Overview

ASTM D6930-19 is a standard test method developed by ASTM International for evaluating the settlement and storage stability of emulsified asphalts. This standard provides a systematic approach to determine how well an emulsified asphalt remains uniformly dispersed during storage. Assessing the storage stability and settlement properties is crucial for product quality in road construction and maintenance, as it ensures reliable handling, application, and performance of emulsified asphalt materials.

This method is applicable to emulsified asphalts that consist primarily of semi-solid or liquid asphaltic base, water, and an emulsifying agent. Industries rely on this test to verify that emulsified asphalt products meet quality and durability requirements before use.

Key Topics

• Settlement and Storage Stability Testing:
  • Determines the ability of an emulsified asphalt to remain as a homogeneous mixture during storage.
  • Involves comparing the residue content from the top and bottom samples after a period of undisturbed storage.
• Sample Preparation:
  • Requires thorough mixing for homogenization before storage.
  • Specific conditioning procedures depending on sample viscosity requirements.
• Test Apparatus and Procedure:
  • Utilizes designated glass cylinders and pipets for sampling.
  • Storage for specified times (e.g., 24 hours for stability, 5 days for settlement).
• Precision and Quality Control:
  • Results depend on operator skill and equipment calibration.
  • Suggests using qualified agencies (e.g., meeting ASTM D3666) for valid results.
• Safety Considerations:
  • Users are responsible for complying with relevant safety, health, and environmental protocols.

Applications

ASTM D6930-19 is widely adopted in road construction, transportation, and civil engineering industries for quality control of emulsified asphalt materials. Practical applications include:

• Material Acceptance Testing: Ensures incoming emulsified asphalt shipments maintain uniformity and are suitable for paving and maintenance applications.
• Research and Development: Assists manufacturers and laboratories in the development of more stable emulsified asphalt formulations.
• Specification Compliance: Helps agencies verify that emulsified asphalts delivered for paving projects meet required storage stability criteria to minimize settlement issues during on-site storage and transport.
• Product Comparison: Enables direct comparison of different emulsified asphalt products or sources in terms of storage stability.

By providing a consistent methodology, ASTM D6930-19 supports the longevity, cost-effectiveness, and safety of road surfaces constructed using emulsified asphalt materials.

Related Standards

• ASTM D3666: Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials.
• ASTM D6934: Test Method for Residue by Evaporation of Emulsified Asphalt.

Integrating ASTM D6930-19 with these related standards enhances comprehensive asphalt quality assessment, ensuring conformity throughout the supply and application chain.

Keywords: emulsified asphalt, storage stability, asphalt settlement, ASTM D6930, asphalt emulsion testing, road construction materials, quality control, settlement test, asphalt standards, ASTM International

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:D6930 −19
Standard Test Method for
Settlement and Storage Stability of Emulsified Asphalts
This standard is issued under the fixed designation D6930; 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. Significance and Use
1.1 This test method covers the ability of an emulsified 3.1 This test method is useful for determining, in a com-
asphalt to remain as a uniform dispersion during storage. It is
paratively short time, the storage stability or settlement of an
applicable to emulsified asphalts composed principally of a
emulsified asphalt. It is a measure of the permanence of the
semisolid or liquid asphaltic base, water, and an emulsifying
dispersion as related to time, but it is not to be construed to
agent.
have significance as a measure of other stability aspects
involved in use.
1.2 The values stated in SI units are to be regarded as
standard. No other units of measurement are included in this
NOTE 1—The quality of the results produced by this standard are
standard.
dependent on the competence of the personnel performing the procedure
and the capability, calibration, and maintenance of the equipment used.
1.3 The text of this standard references notes and footnotes
Agencies that meet the criteria of Specification D3666 are generally
which provide explanatory material. These notes and footnotes
considered capable of competent and objective testing, sampling,
(excluding those in tables and figures) shall not be considered
inspection, etc. Users of this standard are cautioned that compliance with
as requirements of the standard. Specification D3666 alone does not completely ensure reliable results.
Reliable results depend on many factors; following the suggestions of
1.4 This standard does not purport to address all of the
Specification D3666 or some similar acceptance guideline provides a
safety concerns, if any, associated with its use. It is the
means of evaluating and controlling some of those factors.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
4. Summary of Test Method
mine the applicability of regulatory limitations prior to use.
4.1 This test method determines the difference in percent
1.5 This international standard was developed in accor-
residue of samples taken from the top and bottom of material
dance with internationally recognized principles on standard-
placed in undisturbed simulated storage for a specified time
ization established in the Decision on Principles for the
period. The result is expressed by determining the difference
Development of International Standards, Guides and Recom-
between the percent residue of the top and bottom samples for
mendations issued by the World Trade Organization Technical
the storage cylinder.
Barriers to Trade (TBT) Committee.
5. Sample Conditioning for Testing
2. Referenced Documents
5.1 All emulsified asphalts shall be properly stirred to
2.1 ASTM Standards:
achieve homogeneity before testing.
D3666 Specification for Minimum Requirements for Agen-
cies Testing and Inspecting Road and Paving Materials
5.2 All emulsified asphalts with viscosity testing require-
D6934 Test Method for Residue by Evaporation of Emulsi-
ments of 50 °C shall be heated to 50 6 3 °C in the original
fied Asphalt
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.
This test method is under the jurisdiction of ASTM Committee D04 on Road
and Paving Materials and is the direct responsibility of Subcommittee D04.42 on 5.3 Emulsified asphalts with viscosity testing requirements
Emulsified Asphalt Test.
of 25 °C should be mixed or stirred at 25 6 3 °C in the original
Current edition approved July 1, 2019. Published August 2019. Originally
sample container to achieve homogeneity.
approved in 2004. Last previous edition approved in 2010 as D6930 – 10. DOI:
10.1520/D6930-19.
NOTE 2—Emulsified asphalts with viscosity testing requirements of
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
25 °C may be heated and stirred as specified in 5.2, if necessary. In the
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
event the 5.2 method is used, the sample should be cooled to 25 63°C
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. before testing.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D6930−19
NOTE 5—Exercise care to prevent loss of asphalt from the beaker
6. Apparatus
through foaming or splattering, or both. Also, the placing of beakers and
6.1 Cylinder—500-mL glass cylinder, with pressed or
emulsified asphalt samples in a cold or warm oven, and bringing the oven
molded glass base and cork, rubber, or glass stopper, having an
and
...

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: D6930 − 10 D6930 − 19
Standard Test Method for
Settlement and Storage Stability of Emulsified Asphalts
This standard is issued under the fixed designation D6930; 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 test method covers the ability of an emulsified asphalt to remain as a uniform dispersion during storage. It is applicable
to emulsified asphalts composed principally of a semisolid or liquid asphaltic base, water, and an emulsifying agent.
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 test method 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
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:
D3666 Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
D6934 Test Method for Residue by Evaporation of Emulsified Asphalt
3. Significance and Use
3.1 This test method is useful for determining, in a comparatively short time, the storage stability or settlement of an emulsified
asphalt. It is a measure of the permanence of the dispersion as related to time, but it is not to be construed to have significance
as a measure of other stability aspects involved in use.
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
acceptance guideline provides a means of evaluating and controlling some of those factors.
4. Summary of Test Method
4.1 This test method determines the difference in percent residue of samples taken from the top and bottom of material placed
in undisturbed simulated storage for a specified time period. The result is expressed by determining the difference between the
percent residue of the top and bottom samples for the storage cylinder.
5. Sample Conditioning for Testing
5.1 All emulsified asphalts shall be properly stirred to achieve homogeneity before testing.
This test method 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 Dec. 1, 2010July 1, 2019. Published March 2011August 2019. Originally approved 2004 in 2004. Last previous edition approved in 2010 as
D6930D6930 – 10.–10. DOI: 10.1520/D6930-10.10.1520/D6930-19.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. 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
D6930 − 19
5.2 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.
5.3 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 2—Emulsified asphalts with viscosity testing requirements of 25°C25 °C may be heated and stirred as specified in 5.2, if necessary. In the event
the 5.2 method is used, the sample should be cooled to 25 6 3°C3 °C before testing.
6. Apparatus
6.1 Cylinder—500 mL 500-mL glass cylinder, with pressed or molded glass base and cork, rubber, or glass stopper, having an
outside diameter of 50 6 5 mm.
NOTE 3—The use of a cylinder containing side arm glass tubes to permit the siphoning of the material rather than pipetting is an acceptable alternative
method.
6.2 Glass Pipet—A 50 mL 50-mL siphon glass-tube pipet of optional form.
6.3 Balance, capable of weighing 1000 g to 0.1 g.
6.4 Beakers—Two 1000 mL 1000-mL glass or metal beakers.
6.5 StirStirring Rods—Glass or Stainless Steelstainless steel with roun
...