ASTM D2726/D2726M-17
(Test Method)Standard Test Method for Bulk Specific Gravity and Density of Non-Absorptive Compacted Asphalt Mixtures
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, 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 % 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 may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with 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.
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.
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Designation: D2726/D2726M −17
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* D3203 Test Method for Percent Air Voids in Compacted
Dense and Open Bituminous Paving Mixtures
1.1 This test method covers the determination of bulk
D3666 Specification for Minimum Requirements for Agen-
specific gravity and density of specimens of compacted asphalt
cies Testing and Inspecting Road and Paving Materials
mixtures.
D4753 Guide for Evaluating, Selecting, and Specifying Bal-
1.2 This test method should not be used with samples that
ances and Standard Masses for Use in Soil, Rock, and
contain open or interconnecting voids or absorb more than 2 %
Construction Materials Testing
of water by volume, or both, as determined in 11.3.
D5361 Practice for Sampling Compacted Bituminous Mix-
1.3 The values stated in either SI units or inch-pound units
tures for Laboratory Testing
are to be regarded separately as standard. The values stated in D6752 Test Method for Bulk Specific Gravity and Density
each system may not be exact equivalents; therefore, each
of Compacted Bituminous Mixtures Using Automatic
system shall be used independently of the other. Combining Vacuum Sealing Method
values from the two systems may result in non-conformance D7227 Practice for Rapid Drying of Compacted Asphalt
with the standard. Specimens Using Vacuum Drying Apparatus
E1 Specification for ASTM Liquid-in-Glass Thermometers
1.4 This standard does not purport to address all of the
E77 Test Method for Inspection and Verification of Ther-
safety concerns, if any, associated with its use. It is the
mometers
responsibility of the user of this standard to establish appro-
E563 Practice for Preparation and Use of an Ice-Point Bath
priate safety and health practices and determine the applica-
as a Reference Temperature
bility of regulatory limitations prior to use.
E644 Test Methods for Testing Industrial Resistance Ther-
1.5 This international standard was developed in accor-
mometers
dance with internationally recognized principles on standard-
E1137 SpecificationforIndustrialPlatinumResistanceTher-
ization established in the Decision on Principles for the
mometers
Development of International Standards, Guides and Recom-
E2251 Specification for Liquid-in-Glass ASTM Thermom-
mendations issued by the World Trade Organization Technical
eters with Low-Hazard Precision Liquids
Barriers to Trade (TBT) Committee.
3. Terminology
2. Referenced Documents
2
3.1 Definitions of Terms Specific to This Standard:
2.1 ASTM Standards:
D979 Practice for Sampling Bituminous Paving 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
Compacted Bituminous Mixtures Using Coated Samples [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
1
This test method is under the jurisdiction of ASTM Committee D04 on Road
25 °C [77 °F] to the mass of an equal volume of water at the
and Paving Materials and is the direct responsibility of Subcommittee D04.21 on
same temperature.
Specific Gravity and Density of Asphalt Mixtures.
Current edition approved June 1, 2017. Published June 2017. Originally
approved in 1968. Last previous edition approved in 2014 as D2726/D2726M – 14.
4. Summary of Test Method
DOI: 10.1520/D2726_D2726M-17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.1 The specimen is immersed in a water bath at 25 °C
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
[77 °F].The mass under water is recorded, and the specimen is
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. takenoutofthewater,blottedquicklywithadampclothtowel,
*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 − 17
and weighed in air. The difference between the two masses is 6.3 Drying Oven, capable of maintaining a temperature of
used to measure the mass of an equal volume of water at 25 °C 110 6 5 °C [230 6 9 °F].
[77 °F].
6.4 Thermometer—The thermometer
...
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 − 14 D2726/D2726M − 17
Standard Test Method for
Bulk Specific Gravity and Density of Non-Absorptive
1
Compacted BituminousAsphalt 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 bituminousasphalt
mixtures.
1.2 This test method should not be used with samples that contain open or interconnecting voids or absorb more than 2 % 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 may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with 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.
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 Practice for Sampling Bituminous Paving Mixtures
D1188 Test Method for Bulk Specific Gravity and Density of Compacted Bituminous Mixtures Using Coated Samples
D3203 Test Method for Percent Air Voids in Compacted Dense and Open Bituminous Paving 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 Practice for Sampling Compacted Bituminous Mixtures for Laboratory Testing
D6752 Test Method for Bulk Specific Gravity and Density of Compacted Bituminous Mixtures Using Automatic Vacuum
Sealing Method
D7227 Practice for Rapid Drying of Compacted Asphalt Specimens Using Vacuum Drying Apparatus
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 Specification for Industrial Platinum Resistance Thermometers
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 D04.21 on Specific
Gravity and Density of Asphalt Mixtures.
Current edition approved Aug. 1, 2014June 1, 2017. Published August 2014June 2017. Originally approved in 1968. Last previous edition approved in 20132014 as
D2726/D2726M – 13.D2726/D2726M – 14. DOI: 10.1520/D2726_D2726M-14.10.1520/D2726_D2726M-17.
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.
*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 − 17
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].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]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 specimen
...
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