ASTM D6752/D6752M-23
(Test Method)Standard Test Method for Bulk Specific Gravity and Density of Compacted Asphalt Mixtures Using Automatic Vacuum Sealing Method
Standard Test Method for Bulk Specific Gravity and Density of Compacted Asphalt Mixtures Using Automatic Vacuum Sealing Method
SIGNIFICANCE AND USE
4.1 The results obtained from this method can be used to determine the unit weight of compacted 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.
4.2 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.
4.3 This method can be used for 100 mm [4 in.] and 150 mm [6 in.] diameter cylindrical as well as cubical asphalt mixture specimens to correct for inconsistencies in sample weight determinations resulting from drainage of water from samples and inaccuracy in saturated surface dry weight of absorptive coarse and open-graded mixes. Asphalt mixes such as stone matrix asphalt (SMA), porous friction course, and coarse-graded mixes with significant surface texture and interconnected voids can be tested with this method. Follow manufacturer recommendation for appropriate bag sizes to be utilized with cubical and abnormally shaped samples.4
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 of compacted asphalt mixtures by the vacuum sealing method.
1.2 This method can be used for compacted cylindrical and cubical laboratory and field asphalt mixture specimens.
1.3 The bulk specific gravity of the compacted asphalt mixtures may be used in calculating the unit weight of the mixture.
1.4 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 nonconformance with the standard.
1.5 The text of this standard 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.
1.6 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.
1.7 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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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: D6752/D6752M − 23
Standard Test Method for
Bulk Specific Gravity and Density of Compacted Asphalt
1
Mixtures Using Automatic Vacuum Sealing Method
This standard is issued under the fixed designation D6752/D6752M; 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 2. Referenced Documents
2
1.1 This test method covers the determination of bulk 2.1 ASTM Standards:
specific gravity of compacted asphalt mixtures by the vacuum C670 Practice for Preparing Precision and Bias Statements
sealing method. for Test Methods for Construction Materials
D8 Terminology Relating to Materials for Roads and Pave-
1.2 This method can be used for compacted cylindrical and
ments
cubical laboratory and field asphalt mixture specimens.
D2726/D2726M Test Method for Bulk Specific Gravity and
1.3 The bulk specific gravity of the compacted asphalt
Density of Non-Absorptive Compacted Asphalt Mixtures
mixtures may be used in calculating the unit weight of the
D3203/D3203M Test Method for Percent Air Voids in Com-
mixture.
pacted Asphalt Mixtures
1.4 The values stated in either SI units or inch-pound units D3666 Specification for Minimum Requirements for Agen-
cies Testing and Inspecting Road and Paving Materials
are to be regarded separately as standard. The values stated in
each system may not be exact equivalents; therefore, each D4753 Guide for Evaluating, Selecting, and Specifying Bal-
ances and Standard Masses for Use in Soil, Rock, and
system shall be used independently of the other. Combining
values from the two systems may result in nonconformance Construction Materials Testing
D5361/D5361M Practice for Sampling Compacted Asphalt
with the standard.
Mixtures for Laboratory Testing
1.5 The text of this standard references notes and footnotes
D7227/D7227M Practice for Rapid Drying of Compacted
which provide explanatory material. These notes and footnotes
Asphalt Mixture Specimens Using Vacuum Drying Appa-
(excluding those in tables and figures) shall not be considered
ratus
as requirements of the standard.
3
2.2 AASHTO Standard:
1.6 This standard does not purport to address all of the
M 323 Standard Specification for Superpave Mix Design
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3. Terminology
priate safety, health, and environmental practices and deter-
3.1 For definitions of terms used in this standard, refer to
mine the applicability of regulatory limitations prior to use.
Terminology D8.
1.7 This international standard was developed in accor-
dance with internationally recognized principles on standard-
4. Significance and Use
ization established in the Decision on Principles for the
4.1 The results obtained from this method can be used to
Development of International Standards, Guides and Recom-
determine the unit weight of compacted asphalt mixtures, and
mendations issued by the World Trade Organization Technical
in conjunction with Test Method D3203/D3203M, to obtain
Barriers to Trade (TBT) Committee.
1 2
This test method is under the jurisdiction of ASTM Committee D04 on Road For referenced ASTM standards, visit the ASTM website, www.astm.org, or
and Paving Materials and is the direct responsibility of Subcommittee D04.21 on contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Specific Gravity and Density of Asphalt Mixtures. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Nov. 1, 2023. Published December 2023. Originally the ASTM website.
3
approved in 2002. Last previous edition approved in 2018 as D6752/D6752M – 18. Available from the American Association of State Highway Transportation
DOI: 10.1520/D6752_D6752M-23. Officials (AASHTO), 441 N. Capitol Street, NW, Washington, DC 20001.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D6752/D6752M − 23
using a temperature-controlled heater. Also, to reduce the chance for the
percent air voids. These values in turn may be used in
bag to touch the sides of the water tank, it is preferable to elevate the water
determining the relative degree of compaction.
tank to a level at which the sample can be placed on the weighing
4.2 Since specific gravity has no units, it must be converted
mechanism while standing up, and the placement
...
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: D6752/D6752M − 18 D6752/D6752M − 23
Standard Test Method for
Bulk Specific Gravity and Density of Compacted Asphalt
1
Mixtures Using Automatic Vacuum Sealing Method
This standard is issued under the fixed designation D6752/D6752M; 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 determination of bulk specific gravity of compacted asphalt mixtures by the vacuum sealing
method.
1.2 This method can be used for compacted cylindrical and cubical laboratory and field asphalt mixture specimens.
1.3 The bulk specific gravity of the compacted asphalt mixtures may be used in calculating the unit weight of the mixture.
1.4 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 nonconformance with the standard.
1.5 The text of this standard 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.
1.6 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.
1.7 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:
C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
D8 Terminology Relating to Materials for Roads and Pavements
D2726/D2726M Test Method for Bulk Specific Gravity and Density of Non-Absorptive Compacted Asphalt Mixtures
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
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. 15, 2018Nov. 1, 2023. Published August 2018December 2023. Originally approved in 2002. Last previous edition approved in 20172018
as D6752/D6752M – 17.D6752/D6752M – 18. DOI: 10.1520/D6752_D6752M-18.10.1520/D6752_D6752M-23.
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 ----------------------
D6752/D6752M − 23
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
D7227/D7227M Practice for Rapid Drying of Compacted Asphalt Mixture Specimens Using Vacuum Drying Apparatus
3
2.2 AASHTO Standard:
M323M 323 Standard Specification for Superpave Mix Design
3. Terminology
3.1 For definitions of terms used in this standard, refer to Terminology D8.
4. Significance and Use
4.1 The results obtained from this method can be used to determine the unit weight of compacted 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.
4.2 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.
4.3 This method can be us
...
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