ASTM D6925-08
(Test Method)Standard Test Method for Preparation and Determination of the Relative Density of Hot Mix Asphalt (HMA) Specimens by Means of the Superpave Gyratory Compactor
Standard Test Method for Preparation and Determination of the Relative Density of Hot Mix Asphalt (HMA) Specimens by Means of the Superpave Gyratory Compactor
SIGNIFICANCE AND USE
This test method is used to prepare specimens for determining the volumetric and physical properties of compacted HMA mix.
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 and field control of HMA.
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 Standard Practice D 3666 are generally considered capable of competent and objective testing/sampling/inspection/etc. Users of this standard are cautioned that compliance with Practice D 3666 alone does not completely assure reliable results. Reliable results depend on many factors; following the suggestions of Practice D 3666 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 cylindrical specimens of hot mix asphalt (HMA) 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.
1.2 The values stated in SI units are to be regarded as the standard.
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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Designation:D6925–08
Standard Test Method for
Preparation and Determination of the Relative Density of
Hot Mix Asphalt (HMA) Specimens by Means of the
1
Superpave Gyratory Compactor
This standard is issued under the fixed designation D 6925; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope D 4753 Guide for Evaluating, Selecting, and Specifying
Balances and Standard Masses for Use in Soil, Rock, and
1.1 This test method covers the compaction of cylindrical
Construction Materials Testing
specimens of hot mix asphalt (HMA) using the Superpave
3
2.2 AASHTO Standards:
Gyratory Compactor (SGC). This standard also refers to the
AASHTO PP2 Practice for Short and Long Term Aging of
determination of the relative density of the compacted speci-
Hot Mix Asphalt (HMA).
mens at any point in the compaction process. Compacted
AASHTO PP35 Provisional Practice for Evaluation of Su-
specimens are suitable for volumetric and physical property
perpave Gyratory Compactors (SGCs)
testing.
AASHTO PP48 Practice for Evaluation of Superpave Gy-
1.2 The values stated in SI units are to be regarded as the
ratory Compactor (SGC) Internal Angle of Gyration
standard.
AASHTO T312 Preparing and Determining the Density of
1.3 The text of this test method references notes and
Hot-Mix Asphalt (HMA) Specimens by means of the
footnotes which provide explanatory material. These notes and
3
Superpave Gyratory Compactor
footnotes (excluding those in tables and figures) shall not be
2.3 Other References:
considered as requirements of the standard.
4
ANSI B46.1 American National Standards Institute
1.4 This standard does not purport to address all of the
Asphalt Institute MS-2 Mix Design Methods for Asphalt
safety concerns, if any, associated with its use. It is the
5
Concrete
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
3. Significance and Use
bility of regulatory limitations prior to use.
3.1 This test method is used to prepare specimens for
2. Referenced Documents determining the volumetric and physical properties of com-
2 pacted HMA mix.
2.1 ASTM Standards:
3.2 This test method is useful for monitoring the density of
D 1188 Test Method for Bulk Specific Gravity and Density
test specimens during the compaction process. This test
of Compacted Bituminous Mixtures Using Coated
method is suited for the laboratory design and field control of
Samples
HMA.
D 2041 Test Method for Theoretical Maximum Specific
Gravity and Density of Bituminous Paving Mixtures
NOTE 1—The quality of the results produced by this standard are
D 2726 Test Method for Bulk Specific Gravity and Density
dependent on the competence of the personnel performing the procedure
and the capability, calibration, and maintenance of the equipment used.
of Non-Absorptive Compacted Bituminous Mixtures
Agencies that meet the criteria of Standard Practice D 3666 are generally
D 3666 SpecificationforMinimumRequirementsforAgen-
considered capable of competent and objective testing/sampling/
cies Testing and Inspecting Road and Paving Materials
inspection/etc. Users of this standard are cautioned that compliance with
D 4402 TestMethodforViscosityDeterminationofAsphalt
PracticeD 3666alonedoesnotcompletelyassurereliableresults.Reliable
at Elevated Temperatures Using a Rotational Viscometer
results depend on many factors; following the suggestions of Practice
D 3666 or some similar acceptable guideline provides a means of
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
3
Mechanical Tests of Bituminous Mixtures. Available from American Association of State Highway and Transportation
Current edition approved Feb. 1, 2008. Published March 2008. Originally Officials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001,
approved in 2003. Last previous edition approved in 2007 as D 6925 – 07. http://www.transportation.org.
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM 4th Floor, New York, NY 10036, http://www.ansi.org.
5
Standards volume information, refer to the standard’s Document Summary page on Available from Asphalt Institute, 2696 Research Park Dr., Lexington, KY
the ASTM website. 40511, http://www.asphaltinstitute.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-29
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:D6925–07 Designation:D6925–08
Standard Test Method for
Preparation and Determination of the Relative Density of
Hot Mix Asphalt (HMA) Specimens by Means of the
1
Superpave Gyratory Compactor
This standard is issued under the fixed designation D 6925; 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 (e) 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) 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.
1.2 The values stated in SI units are to be regarded as the standard.
1.3 The text of this standardtest 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:
D 1188 Test Method for Bulk Specific Gravity and Density of Compacted Bituminous Mixtures Using Coated Samples
D 2041 Test Method for Theoretical Maximum Specific Gravity and Density of Bituminous Paving Mixtures
D 2726 Test Method for Bulk Specific Gravity and Density of Non-Absorptive Compacted Bituminous Mixtures
D 3666 Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
D 4402 Test Method for Viscosity Determination of Asphalt at Elevated Temperatures Using a Rotational Viscometer
D 4753 Guide for Evaluating, Selecting, and Specifying Balances and Standard Masses for Use in Soil, Rock, and Construction
Materials Testing
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)
AASHTO PP48 Practice for Evaluation of Superpave Gyratory Compactor (SGC) Internal Angle of Gyration
AASHTO T312 Preparing and Determining the Density of Hot-Mix Asphalt (HMA) Specimens by means of the Superpave
3
Gyratory Compactor
2.3 Other References:
4
ANSI B46.1 American National Standards Institute
5
Asphalt Institute MS-2 Mix Design Methods for Asphalt Concrete
3. Significance and Use
3.1 This test method is used to prepare specimens for determining the volumetric and physical properties of compacted HMA
mix.
3.2 This test method is useful for monitoring the density of test specimens during the compaction process. This test method is
1
ThistestmethodisunderthejurisdictionofASTMCommitteeD04onRoadandPavingMaterialsandisthedirectresponsibilityofSubcommitteeD04.20onMechanical
Tests of Bituminous Mixtures.
Current edition approved Sept. 15, 2007. Published October 2007. Originally approved in 2003. Last previous edition approved in 2006 as D6925–06.
Current edition approved Feb. 1, 2008. Published March 2008. Originally approved in 2003. Last previous edition approved in 2007 as D 6925 – 07.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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 American Association of State Highway and Transportation Officials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001,
http://www.transportation.org.
4
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
5
Available from the Asphalt Institute (AI), Institute, 2696 Research Park Dr., Lexington, KY 40511, http://www.asphaltinstitute.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
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D6925–08
suited for the laboratory design and field control of HMA.
NOTE 1—The quality of the results produced by this standard are dependent on the competen
...
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