ASTM D6925-03

Standard Test Method for Preparation and Determination of the Relative Density of Hot Mix Asphalt (HMA) Specimens by Means of the Superpave Gyratory Compactor

SCOPE
1.1 This standard concerns 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 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.

General Information

• Status: Historical
• Publication Date: 09-Sep-2003
• ICS: 93.080.20 - Road construction materials
• Technical Committee: D04 - Road and Paving Materials
• Drafting Committee: D04.20 - Mechanical Tests of Asphalt Mixtures

Relations

• Replaced By: ASTM D6925-06 - Standard Test Method for Preparation and Determination of the Relative Density of Hot Mix Asphalt (HMA) Specimens by Means of the Superpave Gyratory Compactor
• Effective Date: 01-Aug-2006
• Referred By: ASTM D7064/D7064M-21 - Standard Practice for Open-Graded Friction Course (OGFC) Asphalt Mixture Design
• Effective Date: 10-Sep-2003
• Referred By: ASTM C1800/C1800M-16 - Standard Test Method for Determining Density of Roller-Compacted Concrete Specimens Using the Gyratory Compactor
• Effective Date: 10-Sep-2003
• Referred By: ASTM D7369-20 - Standard Test Method for Determining the Resilient Modulus of Asphalt Mixtures by Indirect Tension Test
• Effective Date: 10-Sep-2003
• Referred By: ASTM D7115-20 - Standard Test Method for Measurement of Superpave Gyratory Compactor (SGC) Internal Angle of Gyration Using Simulated Loading
• Effective Date: 10-Sep-2003
• Referred By: ASTM D7870/D7870M-20 - Standard Practice for Moisture Conditioning Compacted Asphalt Mixture Specimens by Using Hydrostatic Pore Pressure
• Effective Date: 10-Sep-2003
• Referred By: ASTM D7552-22 - Standard Test Method for Determining the Complex Shear Modulus (G*) of Asphalt Mixtures Using Dynamic Shear Rheometer
• Effective Date: 10-Sep-2003
• Referred By: ASTM D8259/D8259M-21 - Standard Test Method for Rotary Wheel Testing (RWT) of Compacted Asphalt Mixtures
• Effective Date: 10-Sep-2003
• Referred By: ASTM D8303-20 - Standard Test Method for Determining Thermal Cracking Properties of Asphalt Mixtures Through Measurement of Thermally Induced Stress and Strain
• Effective Date: 10-Sep-2003
• Referred By: ASTM D7196-23 - Standard Test Method for Raveling Test of Cold-Mixed Emulsified Asphalt Samples
• Effective Date: 10-Sep-2003
• Referred By: ASTM D8360-22 - Standard Test Method for Determination of Rutting Tolerance Index of Asphalt Mixture Using the Ideal Rutting Test
• Effective Date: 10-Sep-2003
• Referred By: ASTM D8225-19 - Standard Test Method for Determination of Cracking Tolerance Index of Asphalt Mixture Using the Indirect Tensile Cracking Test at Intermediate Temperature
• Effective Date: 10-Sep-2003
• Referred By: ASTM D8044-23 - Standard Test Method for Evaluation of Asphalt Mixture Cracking Resistance Using the Semi-Circular Bend Test (SCB) at Intermediate Temperatures
• Effective Date: 10-Sep-2003
• Referred By: ASTM D7313-20 - Standard Test Method for Determining Fracture Energy of Asphalt Mixtures Using the Disk-Shaped Compact Tension Geometry
• Effective Date: 10-Sep-2003
• Referred By: ASTM D979/D979M-22 - Standard Practice for Sampling Asphalt Mixtures
• Effective Date: 10-Sep-2003

Standards Content (Sample)

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:D6925–03
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.
3
1. Scope Gyratory Compactors (SGCs)
AASHTO T312 Preparing and Determining the Density of
1.1 This standard concerns the compaction of cylindrical
Hot-Mix Asphalt (HMA) Specimens by means of the
specimens of hot mix asphalt (HMA) using the Superpave
3
Superpave Gyratory Compactor
Gyratory Compactor (SGC). This standard also refers to the
2.3 Other References:
determination of the relative density of the compacted speci-
ANSI B46.1 American National Standards Institute
mens at any point in the compaction process. Compacted
PP ## Standard Practice for Evaluation of Superpave
specimens are suitable for volumetric and physical property
Gyratory Compactor (SGC) Internal Angle of Gyration
testing.
Asphalt Institute MS-2 Mix Design Methods for Asphalt
1.2 The values stated in SI units are to be regarded as the
Concrete
standard.
Ruggedness Evaluation of AASHTO TP4 The Superpave
1.3 This standard does not purport to address all of the
GyratoryCompactor,McGennis,R;Kennedy,TW;Ander-
safety concerns, if any, associated with its use. It is the
son, VL; Perdomo, D, Journal of the Association of
responsibility of the user of this standard to establish appro-
Asphalt Paving Technologists Vol: 66
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
3. Significance and Use
2. Referenced Documents 3.1 This standard is used to prepare specimens for deter-
2
mining the volumetric and physical properties of HMA speci-
2.1 ASTM Standards:
mens.
D 1188 Test Method for Bulk Specific Gravity and Density
3.2 This test method is useful for monitoring the density of
of Compacted Bituminous Mixtures Using Coated
test specimens during the compaction process. This method is
Samples
suited for the laboratory design and field control of HMA.
D 2041 Test Method for Theoretical Maximum Specific
Gravity and Density of Bituminous Paving Mixtures
4. Apparatus
D 2726 Test Method for Bulk Specific Gravity and Density
4.1 Superpave Gyratory Compactor—An electromechani-
of Compacted Bituminous Mixtures Using Saturated
cal, electro hydraulic, or electro pneumatic compactor com-
Surface-Dry Specimens
prised of the following system components: (1) reaction frame,
D 4402 Test Method forViscosity Determination ofAsphalt
and drive motor, (2) loading system, loading ram, and pressure
at Elevated Temperatures Using a Rotational Viscometer
indicator, (3) height measurement and recording system, and
D 4753 Specification for Evaluating, Selecting, and Speci-
(4) mold and base plate.
fying Balances and Scales for Use in Testing Soil, Rock,
4.1.1 The reaction frame shall provide a non-compliant
and Related Construction Materials
structure against which the vertical loading ram can push when
2.2 AASHTO Standards:
compacting specimens. Reaction bearings shall be capable of
PP35 Provisional Practice for Evaluation of Superpave
creating, and firmly maintaining during the compaction pro-
cess, an external angle of gyration of 21.8 6 0.4 mrad (1.25 6
0.02 degrees).
1
This test method is under the jurisdiction of ASTM Committee D04 on Road
NOTE 1—Research has shown external angle (measurement between
and Paving Materials and is the direct responsibility of Subcommittee D04.20 on
the external mold wall and the frame of the compactor) to be different
Mechanical Tests of Bituminous Mixtures.
Current edition approved Sept. 10, 2003. Published November 2003.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available from American Association of State Highway and Transportation
the ASTM website. Officials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D6925–03
from the internal angle (measurement between internal mold wall and top
aggregates, asphalt binders, and equipment. This oven shall
and bottom plate). The difference between these measurements varies for
have a range to a minimum of 204°C, thermostatically con-
different types of compactors. Some discrepa
...