ASTM D6752-09
(Test Method)Standard Test Method for Bulk Specific Gravity and Density of Compacted Bituminous Mixtures Using Automatic Vacuum Sealing Method
Standard Test Method for Bulk Specific Gravity and Density of Compacted Bituminous Mixtures Using Automatic Vacuum Sealing Method
SIGNIFICANCE AND USE
The results obtained from this method can be used to determine the unit weight of compacted bituminous 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.
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.
This method can be used for 100 mm (4 in.) and 150 mm (6 in.) diameter cylindrical as well as cubical asphalt 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. 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.
Note 1—The personnel and equipment used in performing this test can be evaluated in accordance with Practice D3666.
SCOPE
1.1 This test method covers the determination of bulk specific gravity of compacted bituminous mixtures by the vacuum sealing method.
1.2 This method can be used for compacted cylindrical and cubical bituminous laboratory and field specimens.
1.3 The bulk specific gravity of the compacted bituminous mixtures may be used in calculating the unit weight of the mixture.
1.4 The values stated in SI units are to be regarded as the standard. The values given in parenthesis are for information only.
1.5 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 requirements prior to use.
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Designation: D6752 – 09
Standard Test Method for
Bulk Specific Gravity and Density of Compacted Bituminous
1
Mixtures Using Automatic Vacuum Sealing Method
This standard is issued under the fixed designation D6752; 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 D7227 Practice for Rapid Drying of Compacted Asphalt
Specimens Using Vacuum Drying Apparatus
1.1 This test method covers the determination of bulk
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2.2 AASHTO Standards:
specific gravity of compacted bituminous mixtures by the
M323 Standard Specification for Superpave Mix Design
vacuum sealing method.
1.2 This method can be used for compacted cylindrical and
3. Significance and Use
cubical bituminous laboratory and field specimens.
3.1 The results obtained from this method can be used to
1.3 The bulk specific gravity of the compacted bituminous
determine the unit weight of compacted bituminous mixtures
mixtures may be used in calculating the unit weight of the
and in conjunction with Test Method D3203, to obtain percent
mixture.
air voids. These values in turn may be used in determining the
1.4 The values stated in SI units are to be regarded as the
relative degree of compaction.
standard. The values given in parenthesis are for information
3.2 Since specific gravity has no units, it must be converted
only.
to density in order to do calculations that require units. This
1.5 This standard does not purport to address all of the
conversion is made by multiplying the specific gravity at a
safety concerns, if any, associated with its use. It is the
given temperature by the density of water at the same tempera-
responsibility of the user of this standard to establish appro-
ture.
priate safety and health practices and determine the applica-
3.3 Thismethodcanbeusedfor100mm(4in.)and150mm
bility of regulatory requirements prior to use.
(6 in.) diameter cylindrical as well as cubical asphalt speci-
2. Referenced Documents mens to correct for inconsistencies in sample weight determi-
2
nations resulting from drainage of water from samples and
2.1 ASTM Standards:
inaccuracy in saturated surface dry weight of absorptive coarse
C670 Practice for Preparing Precision and Bias Statements
and open graded mixes. Mixes such as Stone Matrix Asphalt
for Test Methods for Construction Materials
(SMA), porous friction course, and coarse graded mixes with
D2726 Test Method for Bulk Specific Gravity and Density
significant surface texture and interconnected voids can be
of Non-Absorptive Compacted Bituminous Mixtures
tested with this method. Follow manufacturer recommendation
D3203 Test Method for Percent Air Voids in Compacted
for appropriate bag sizes to be utilized with cubical and
Dense and Open Bituminous Paving Mixtures
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abnormally shaped samples.
D3666 Specification for Minimum Requirements forAgen-
cies Testing and Inspecting Road and Paving Materials
NOTE 1—The personnel and equipment used in performing this test can
D4753 Guide for Evaluating, Selecting, and Specifying be evaluated in accordance with Practice D3666.
Balances and Standard Masses for Use in Soil, Rock, and
4. Apparatus
Construction Materials Testing
D5361 Practice for Sampling Compacted Bituminous Mix- 4.1 Balance, with ample capacity, and with sufficient sensi-
tivity to enable bulk specific gravity of specimens to be
tures for Laboratory Testing
calculated to at least four significant figures, that is to at least
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This test method is under the jurisdiction of ASTM Committee D04 on Road
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and Paving Materials and is the direct responsibility of Subcommittee D04.21 on Available from the American Association of State Highway Transportation
Specific Gravity and Density of Bituminous Mixtures. Officials (AASHTO), 441 N. Capitol Street, NW, Washington, DC 20001.
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Current edition approved Dec. 1, 2009. Published January 2010. Originally Bulk specific gravity determined by this method may be lower than the results
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approved in 2002. Last previous edition approved in 2003 as D6752 – 03 . DOI: obtained by Test Method D2726. As a result, air voids determined from these bulk
10.1520/D6752-09. specificgravityvaluesmaybehigherthantheairvoidsvaluesdeterminedusingTest
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Method D2726. These differences may be more pronounced for coarse aggregate
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM mixtures. Users of this method are cautioned to evaluate any alteration in percent
Standards volume information, refer to the standard’s Document Summary page on asphalt content or aggregate gradations for mix designs with
...
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.
´1
Designation:D6752–03 Designation: D6752 – 09
Standard Test Method for
Bulk Specific Gravity and Density of Compacted Bituminous
1
Mixtures Using Automatic Vacuum Sealing Method
This standard is issued under the fixed designation D6752; 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
´ NOTE—Paragraph 8.2 was corrected editorially in December 2004.
1. Scope
1.1 Thistestmethodcoversthedeterminationofbulkspecificgravityofcompactedbituminousmixturesbythevacuumsealing
method.
1.2 This method can be used for compacted cylindrical and cubical bituminous laboratory and field specimens.
1.3 The bulk specific gravity of the compacted bituminous mixtures may be used in calculating the unit weight of the mixture.
1.4
1.4 The values stated in SI units are to be regarded as the standard. The values given in parenthesis are for information only.
1.5 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
requirements prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials D979Practice for
Sampling Bitumi-
nous Paving Mix-
tures
D1461Test Method for Moisture or Volatile Distillates in Bituminous Paving Mixtures
D2726 Test Method for Bulk Specific Gravity and Density of Non-Absorptive Compacted Bituminous Mixtures
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 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
D7227 Practice for Rapid Drying of Compacted Asphalt Specimens Using Vacuum Drying Apparatus
3
2.2 AASHTO Standards:
MP323 Standard Specification for Superpave Mix Design
3. Significance and Use
3.1 The results obtained from this method can be used to determine the unit weight of compacted bituminous 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.
3.2 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.
1
This test method is under the jurisdiction ofASTM Committee D04 on Road and Paving Materials and is the direct responsibility of Subcommittee D04.21 on Specific
Gravity and Density of Bituminous Mixtures.
Current edition approved . Published January 2004. Originally approved in 2002. Last previous edition approved in 2002 as D6752-02a. DOI: 10.1520/D6752-03E01.
´1
Current edition approved Dec. 1, 2009. Published January 2010. Originally approved in 2002. Last previous edition approved in 2003 as D6752 – 03 . DOI:
10.1520/D6752-09.
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 the American Association of State Highway Transportation 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.
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D6752 – 09
3.3This method can be used for 100 mm and 150 mm diameter cylindrical as well as cubical asphalt specimens to correct for
absorptive and open graded mixes. Mixes such as Stone Matrix Asphalt (SMA), porous friction coarse, and Superpave coarse
graded mixes with significant surface texture and interconnected voids should be sealed for accurate bulk specific density results.
Follow manufacturer recomm
...
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