ASTM D2726/D2726M-21

Standard Test Method for Bulk Specific Gravity and Density of Non-Absorptive Compacted Asphalt Mixtures

SIGNIFICANCE AND USE
5.1 The results obtained from this test method can be used to determine the unit weight of compacted dense asphalt mixtures and in conjunction with Test Method D3203/D3203M, to obtain percent air voids. These values in turn may be used in determining the relative degree of compaction.  
5.2 Since specific gravity has no units, it must be converted to density in order to do calculations that require units. This conversion is made by multiplying the specific gravity at a given temperature by the density of water at the same temperature.
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 test method covers the determination of bulk specific gravity and density of specimens of compacted asphalt mixtures.  
1.2 This test method should not be used with samples that contain open or interconnecting voids or absorb more than 2.0 % of water by volume, or both, as determined in 11.3.  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
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-2021
• ICS: 91.100.50 - Binders. Sealing materials
• ICS: 93.080.20 - Road construction materials
• Technical Committee: D04 - Road and Paving Materials
• Drafting Committee: D04.21 - Specific Gravity and Density of Asphalt Mixtures

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:D2726/D2726M −21
Standard Test Method for
Bulk Specific Gravity and Density of Non-Absorptive
1
Compacted Asphalt Mixtures
This standard is issued under the fixed designation D2726/D2726M; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* Compacted Bituminous Mixtures Using Coated Samples
D3203/D3203M Test Method for PercentAir Voids in Com-
1.1 This test method covers the determination of bulk
pacted Asphalt Mixtures
specific gravity and density of specimens of compacted asphalt
D3666 Specification for Minimum Requirements for Agen-
mixtures.
cies Testing and Inspecting Road and Paving Materials
1.2 This test method should not be used with samples that
D4753 Guide for Evaluating, Selecting, and Specifying Bal-
contain open or interconnecting voids or absorb more than
ances and Standard Masses for Use in Soil, Rock, and
2.0 % of water by volume, or both, as determined in 11.3.
Construction Materials Testing
1.3 The values stated in either SI units or inch-pound units D5361/D5361M Practice for Sampling Compacted Asphalt
Mixtures for Laboratory Testing
are to be regarded separately as standard. The values stated in
each system are not necessarily exact equivalents; therefore, to D6752/D6752M Test Method for Bulk Specific Gravity and
Density of CompactedAsphalt Mixtures UsingAutomatic
ensure conformance with the standard, each system shall be
used independently of the other, and values from the two Vacuum Sealing Method
D7227/D7227M Practice for Rapid Drying of Compacted
systems shall not be combined.
Asphalt Mixture Specimens Using Vacuum DryingAppa-
1.4 This standard does not purport to address all of the
ratus
safety concerns, if any, associated with its use. It is the
E1 Specification for ASTM Liquid-in-Glass Thermometers
responsibility of the user of this standard to establish appro-
E77 Test Method for Inspection and Verification of Ther-
priate safety, health, and environmental practices and deter-
mometers
mine the applicability of regulatory limitations prior to use.
E563 Practice for Preparation and Use of an Ice-Point Bath
1.5 This international standard was developed in accor-
as a Reference Temperature
dance with internationally recognized principles on standard-
E644 Test Methods for Testing Industrial Resistance Ther-
ization established in the Decision on Principles for the
mometers
Development of International Standards, Guides and Recom-
E1137/E1137M Specification for Industrial Platinum Resis-
mendations issued by the World Trade Organization Technical
tance Thermometers
Barriers to Trade (TBT) Committee.
E2251 Specification for Liquid-in-Glass ASTM Thermom-
eters with Low-Hazard Precision Liquids
2. Referenced Documents
2
2.1 ASTM Standards:
3. Terminology
D979/D979M Practice for Sampling Bituminous Paving
3.1 Definitions of Terms Specific to This Standard:
Mixtures
3.1.1 bulk density—as determined by this test method, the
D1188 TestMethodforBulkSpecificGravityandDensityof
mass of a metre cubed (or foot cubed) of the material at 25 °C
[77 °F].
1
3.1.2 bulk specific gravity—as determined by this test
This test method is under the jurisdiction of ASTM Committee D04 on Road
and Paving Materials and is the direct responsibility of Subcommittee D04.21 on
method, the ratio of the mass of a given volume of material at
Specific Gravity and Density of Asphalt Mixtures.
25 °C [77 °F] to the mass of an equal volume of water at the
Current edition approved May 1, 2021. Published May 2021. Originally
same temperature.
approved in 1968. Last previous edition approved in 2019 as D2726/D2726M – 19.
DOI: 10.1520/D2726_D2726M-21.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 4. Summary of Test Method
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
4.1 The specimen is immersed in a water bath at 25 °C
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. [77 °F].The mass under water is recorded, and the specimen is
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D2726/D2726M−21
takenoutofthewater,blottedquicklywithadampclothtowel, 6.3 Drying Oven, capable of maintaini
...

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: D2726/D2726M − 19 D2726/D2726M − 21
Standard Test Method for
Bulk Specific Gravity and Density of Non-Absorptive
1
Compacted Asphalt Mixtures
This standard is issued under the fixed designation D2726/D2726M; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 This test method covers the determination of bulk specific gravity and density of specimens of compacted asphalt mixtures.
1.2 This test method should not be used with samples that contain open or interconnecting voids or absorb more than 2.0 % of
water by volume, or both, as determined in 11.3.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used
independently of the other, and values from the two systems shall not be combined.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
D979/D979M Practice for Sampling Bituminous Paving Mixtures
D1188 Test Method for Bulk Specific Gravity and Density of Compacted Bituminous Mixtures Using Coated Samples
D3203/D3203M Test Method for Percent Air Voids in Compacted Asphalt Mixtures
D3666 Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
D4753 Guide for Evaluating, Selecting, and Specifying Balances and Standard Masses for Use in Soil, Rock, and Construction
Materials Testing
D5361/D5361M Practice for Sampling Compacted Asphalt Mixtures for Laboratory Testing
D6752/D6752M Test Method for Bulk Specific Gravity and Density of Compacted Asphalt Mixtures Using Automatic Vacuum
Sealing Method
D7227/D7227M Practice for Rapid Drying of Compacted Asphalt Mixture Specimens Using Vacuum Drying Apparatus
1
This test method is under the jurisdiction of ASTM Committee D04 on Road and Paving Materials and is the direct responsibility of Subcommittee D04.21 on Specific
Gravity and Density of Asphalt Mixtures.
Current edition approved March 1, 2019May 1, 2021. Published March 2019May 2021. Originally approved in 1968. Last previous edition approved in 20172019 as
D2726/D2726M – 17.D2726/D2726M – 19. DOI: 10.1520/D2726_D2726M-19.10.1520/D2726_D2726M-21.
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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D2726/D2726M − 21
E1 Specification for ASTM Liquid-in-Glass Thermometers
E77 Test Method for Inspection and Verification of Thermometers
E563 Practice for Preparation and Use of an Ice-Point Bath as a Reference Temperature
E644 Test Methods for Testing Industrial Resistance Thermometers
E1137/E1137M Specification for Industrial Platinum Resistance Thermometers
E2251 Specification for Liquid-in-Glass ASTM Thermometers with Low-Hazard Precision Liquids
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 bulk density—as determined by this test method, the mass of a metre cubed (or foot cubed) of the material at 25 °C [77 °F].
3.1.2 bulk specific gravity—as determined by this test method, the ratio of the mass of a given volume of material at 25 °C [77 °F]
to the mass of an equal volume of water at the same temperature.
4. Summary of Test Method
4.1 The
...