ASTM D6925-15
(Test Method)Standard Test Method for Preparation and Determination of the Relative Density of Asphalt Mix Specimens by Means of the Superpave Gyratory Compactor
Standard Test Method for Preparation and Determination of the Relative Density of Asphalt Mix Specimens by Means of the Superpave Gyratory Compactor
SIGNIFICANCE AND USE
4.1 This test method is used to prepare specimens for determining the volumetric and physical properties of compacted asphalt mix.
4.2 This test method is useful for monitoring the density of test specimens during the compaction process. This test method is suited for the laboratory design, field control of asphalt mix, forensics, imaging, and visualization of compacted asphalt mix.
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 assure 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 test method covers the compaction of asphalt mix into cylindrical specimens using the Superpave Gyratory Compactor (SGC). This standard also refers to the determination of the relative density of the compacted specimens at any point in the compaction process. Compacted specimens are suitable for volumetric, physical property, and mechanical testing. Smaller specimens may be cut from the compacted cylindrical specimen for specific test specimen geometry requirements. The compaction procedures apply to Laboratory Mix Laboratory Compacted (LMLC) and Plant Mix Laboratory Compacted (PMLC) asphalt mix.
1.2 The values stated in SI units are to be regarded as standard. The value given in degrees for the angle of gyration is a mathematical conversion from the SI units and is provided for information regarding the commonly used unit of degree.
1.3 The text of this test method 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 and health practices and determine the applicability of regulatory limitations prior to use.
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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: D6925 − 15
Standard Test Method for
Preparation and Determination of the Relative Density of
Asphalt Mix Specimens by Means of the Superpave
1
Gyratory Compactor
This standard is issued under the fixed designation D6925; 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 D979/D979M Practice for Sampling Bituminous Paving
Mixtures
1.1 This test method covers the compaction of asphalt mix
D1188 TestMethodforBulkSpecificGravityandDensityof
into cylindrical specimens using the Superpave Gyratory
Compacted Bituminous Mixtures Using Coated Samples
Compactor (SGC). This standard also refers to the determina-
D2041 Test Method for Theoretical Maximum Specific
tion of the relative density of the compacted specimens at any
Gravity and Density of Bituminous Paving Mixtures
point in the compaction process. Compacted specimens are
D2726 Test Method for Bulk Specific Gravity and Density
suitable for volumetric, physical property, and mechanical
of Non-Absorptive Compacted Bituminous Mixtures
testing. Smaller specimens may be cut from the compacted
D3666 Specification for Minimum Requirements for Agen-
cylindrical specimen for specific test specimen geometry
cies Testing and Inspecting Road and Paving Materials
requirements. The compaction procedures apply to Laboratory
D4402 Test Method for Viscosity Determination of Asphalt
Mix Laboratory Compacted (LMLC) and Plant Mix Labora-
at Elevated Temperatures Using a Rotational Viscometer
tory Compacted (PMLC) asphalt mix.
D4753 Guide for Evaluating, Selecting, and Specifying Bal-
1.2 The values stated in SI units are to be regarded as
ances and Standard Masses for Use in Soil, Rock, and
standard. The value given in degrees for the angle of gyration
Construction Materials Testing
is a mathematical conversion from the SI units and is provided
D6752/D6752M Test Method for Bulk Specific Gravity and
for information regarding the commonly used unit of degree.
Density of Compacted Bituminous Mixtures Using Auto-
matic Vacuum Sealing Method
1.3 The text of this test method references notes and
footnotes which provide explanatory material. These notes and D6857/D6857M Test Method for Maximum Specific Grav-
footnotes (excluding those in tables and figures) shall not be ity and Density of Bituminous Paving Mixtures Using
Automatic Vacuum Sealing Method
considered as requirements of the standard.
D7115 Test Method for Measurement of Superpave Gyra-
1.4 This standard does not purport to address all of the
tory Compactor (SGC) Internal Angle of Gyration Using
safety concerns, if any, associated with its use. It is the
Simulated Loading
responsibility of the user of this standard to establish appro-
E2251 Specification for Liquid-in-Glass ASTM Thermom-
priate safety and health practices and determine the applica-
eters with Low-Hazard Precision Liquids
bility of regulatory limitations prior to use.
3
2.2 AASHTO Standards:
2. Referenced Documents PP35 Provisional Practice for Evaluation of Superpave Gy-
2 ratory Compactors (SGCs)
2.1 ASTM Standards:
PP76 Standard Practice for Troubleshooting Asphalt Speci-
D8 Terminology Relating to Materials for Roads and Pave-
men Volumetric Differences between Superpave Gyratory
ments
Compactors (SGCs) Used in the Design and the Field
Management of Superpave Mixtures
R30 Standard Practice for Mixture Conditioning of Hot Mix
1
This test method is under the jurisdiction of ASTM Committee D04 on Road
Asphalt (HMA)
and Paving Materials and is the direct responsibility of Subcommittee D04.20 on
Mechanical Tests of Asphalt Mixtures.
R35 Standard Practice for Superpave Volumetric Design for
Current edition approved Jan. 1, 2015. Published January 2015. Originally
Hot Mix Asphalt (HMA)
approved in 2003. Last previous edition approved in 2009 as D6925 – 09. DOI:
10.1520/D6925-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from American Association of State Highway and Transportation
Standards volume information, refer to the standard’s Document Summary page on Officials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001,
the ASTM website. http://www.transportation.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6925 − 15
R47 Stand
...
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: D6925 − 09 D6925 − 15
Standard Test Method for
Preparation and Determination of the Relative Density of
Hot Mix Asphalt (HMA)Mix Specimens by Means of the
1
Superpave Gyratory Compactor
This standard is issued under the fixed designation D6925; 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 compaction of cylindrical specimens of hot mix asphalt (HMA) asphalt mix into cylindrical
specimens using the Superpave Gyratory Compactor (SGC). This standard also refers to the determination of the relative density
of the compacted specimens at any point in the compaction process. Compacted specimens are suitable for volumetric and physical
property testing.volumetric, physical property, and mechanical testing. Smaller specimens may be cut from the compacted
cylindrical specimen for specific test specimen geometry requirements. The compaction procedures apply to Laboratory Mix
Laboratory Compacted (LMLC) and Plant Mix Laboratory Compacted (PMLC) asphalt mix.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.The
value given in degrees for the angle of gyration is a mathematical conversion from the SI units and is provided for information
regarding the commonly used unit of degree.
1.3 The text of this test method 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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
D8 Terminology Relating to Materials for Roads and Pavements
D979/D979M Practice for Sampling Bituminous Paving Mixtures
D1188 Test Method for Bulk Specific Gravity and Density of Compacted Bituminous Mixtures Using Coated Samples
D2041 Test Method for Theoretical Maximum Specific Gravity and Density of Bituminous Paving Mixtures
D2726 Test Method for Bulk Specific Gravity and Density of Non-Absorptive Compacted Bituminous Mixtures
D3666 Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
D4402 Test Method for Viscosity Determination of Asphalt at Elevated Temperatures Using a Rotational Viscometer
D4753 Guide for Evaluating, Selecting, and Specifying Balances and Standard Masses for Use in Soil, Rock, and Construction
Materials Testing
D6752/D6752M Test Method for Bulk Specific Gravity and Density of Compacted Bituminous Mixtures Using Automatic
Vacuum Sealing Method
D6857/D6857M Test Method for Maximum Specific Gravity and Density of Bituminous Paving Mixtures Using Automatic
Vacuum Sealing Method
D7115 Test Method for Measurement of Superpave Gyratory Compactor (SGC) Internal Angle of Gyration Using Simulated
Loading
E2251 Specification for Liquid-in-Glass ASTM Thermometers with Low-Hazard Precision Liquids
1
This test method is under the jurisdiction of ASTM Committee D04 on Road and Paving Materials and is the direct responsibility of Subcommittee D04.20 on Mechanical
Tests of BituminousAsphalt Mixtures.
Current edition approved July 1, 2009Jan. 1, 2015. Published July 2009January 2015. Originally approved in 2003. Last previous edition approved in 20082009 as
D6925 – 08.D6925 – 09. DOI: 10.1520/D6925-09.10.1520/D6925-15.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6925 − 15
3
2.2 AASHTO Standards:
AASHTO PP2 Practice for Short and Long Term Aging of Hot Mix Asphalt (HMA).
AASHTO PP35 Provisional Practice for Evaluation of Superpave Gyratory Compactors (SGCs)
PP76 Standard Practice for Troubleshooting Asphalt Specimen Volumetric Differences between Superpave Gyratory Compa
...
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D6925 − 15
Standard Test Method for
Preparation and Determination of the Relative Density of
Asphalt Mix Specimens by Means of the Superpave
1
Gyratory Compactor
This standard is issued under the fixed designation D6925; 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 D979/D979M Practice for Sampling Bituminous Paving
Mixtures
1.1 This test method covers the compaction of asphalt mix
D1188 Test Method for Bulk Specific Gravity and Density of
into cylindrical specimens using the Superpave Gyratory
Compacted Bituminous Mixtures Using Coated Samples
Compactor (SGC). This standard also refers to the determina-
D2041 Test Method for Theoretical Maximum Specific
tion of the relative density of the compacted specimens at any
Gravity and Density of Bituminous Paving Mixtures
point in the compaction process. Compacted specimens are
D2726 Test Method for Bulk Specific Gravity and Density
suitable for volumetric, physical property, and mechanical
of Non-Absorptive Compacted Bituminous Mixtures
testing. Smaller specimens may be cut from the compacted
D3666 Specification for Minimum Requirements for Agen-
cylindrical specimen for specific test specimen geometry
cies Testing and Inspecting Road and Paving Materials
requirements. The compaction procedures apply to Laboratory
D4402 Test Method for Viscosity Determination of Asphalt
Mix Laboratory Compacted (LMLC) and Plant Mix Labora-
at Elevated Temperatures Using a Rotational Viscometer
tory Compacted (PMLC) asphalt mix.
D4753 Guide for Evaluating, Selecting, and Specifying Bal-
1.2 The values stated in SI units are to be regarded as
ances and Standard Masses for Use in Soil, Rock, and
standard. The value given in degrees for the angle of gyration
Construction Materials Testing
is a mathematical conversion from the SI units and is provided
D6752/D6752M Test Method for Bulk Specific Gravity and
for information regarding the commonly used unit of degree.
Density of Compacted Bituminous Mixtures Using Auto-
1.3 The text of this test method references notes and matic Vacuum Sealing Method
D6857/D6857M Test Method for Maximum Specific Grav-
footnotes which provide explanatory material. These notes and
ity and Density of Bituminous Paving Mixtures Using
footnotes (excluding those in tables and figures) shall not be
considered as requirements of the standard. Automatic Vacuum Sealing Method
D7115 Test Method for Measurement of Superpave Gyra-
1.4 This standard does not purport to address all of the
tory Compactor (SGC) Internal Angle of Gyration Using
safety concerns, if any, associated with its use. It is the
Simulated Loading
responsibility of the user of this standard to establish appro-
E2251 Specification for Liquid-in-Glass ASTM Thermom-
priate safety and health practices and determine the applica-
eters with Low-Hazard Precision Liquids
bility of regulatory limitations prior to use.
3
2.2 AASHTO Standards:
PP35 Provisional Practice for Evaluation of Superpave Gy-
2. Referenced Documents
2 ratory Compactors (SGCs)
2.1 ASTM Standards:
PP76 Standard Practice for Troubleshooting Asphalt Speci-
D8 Terminology Relating to Materials for Roads and Pave-
men Volumetric Differences between Superpave Gyratory
ments
Compactors (SGCs) Used in the Design and the Field
Management of Superpave Mixtures
R30 Standard Practice for Mixture Conditioning of Hot Mix
1
This test method is under the jurisdiction of ASTM Committee D04 on Road
Asphalt (HMA)
and Paving Materials and is the direct responsibility of Subcommittee D04.20 on
Mechanical Tests of Asphalt Mixtures.
R35 Standard Practice for Superpave Volumetric Design for
Current edition approved Jan. 1, 2015. Published January 2015. Originally
Hot Mix Asphalt (HMA)
approved in 2003. Last previous edition approved in 2009 as D6925 – 09. DOI:
10.1520/D6925-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from American Association of State Highway and Transportation
Standards volume information, refer to the standard’s Document Summary page on Officials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001,
the ASTM website. http://www.transportation.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6925 − 15
R47 Standard Practice for Reducing Samples of Hot Mix 4.2 This test method is useful for monitoring the density of
Asphalt (HMA) to Testing Size tes
...
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