ASTM D2726-08
(Test Method)Standard Test Method for Bulk Specific Gravity and Density of Non-Absorptive Compacted Bituminous Mixtures
Standard Test Method for Bulk Specific Gravity and Density of Non-Absorptive Compacted Bituminous Mixtures
SIGNIFICANCE AND USE
The results obtained from this test method can be used to determine the unit weight of compacted dense bituminous mixtures and in conjunction with Test Method D 3203, 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.
Note 1—The personnel and equipment used in performing this test can be evaluated in accordance with Practice D 3666.
SCOPE
1.1 This test method covers the determination of bulk specific gravity and density of specimens of compacted bituminous 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 10.3.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.
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Designation: D 2726 – 08
Standard Test Method for
Bulk Specific Gravity and Density of Non-Absorptive
1
Compacted Bituminous Mixtures
This standard is issued under the fixed designation D 2726; 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 Department of Defense.
1. Scope* D 6752 Test Method for Bulk Specific Gravity and Density
of Compacted Bituminous Mixtures Using Automatic
1.1 This test method covers the determination of bulk
Vacuum Sealing Method
specific gravity and density of specimens of compacted bitu-
D 7227 Practice for Rapid Drying of Compacted Asphalt
minous mixtures.
Specimens Using Vacuum Drying Apparatus
1.2 This test method should not be used with samples that
contain open or interconnecting voids or absorb more than 2 %
3. Terminology
of water by volume, or both, as determined in 10.3.
3.1 Definitions of Terms Specific to This Standard:
1.3 The values stated in SI units are to be regarded as the
3.1.1 bulk density—as determined by this test method, the
standard. The values given in parentheses are for information
mass of a metre cubed (or foot cubed) of the material at 25°C
only.
(77°F).
1.4 This standard does not purport to address all of the
3.1.2 bulk specific gravity—as determined by this test
safety concerns, if any, associated with its use. It is the
method, the ratio of the mass of a given volume of material at
responsibility of the user of this standard to establish appro-
25°C to the mass of an equal volume of water at the same
priate safety and health practices and determine the applica-
temperature.
bility of regulatory limitations prior to use.
4. Summary of Test Method
2. Referenced Documents
2 4.1 The specimen is immersed in a water bath at 25°C
2.1 ASTM Standards:
(77°F). The mass under water is recorded, and the specimen is
D 979 Practice for Sampling Bituminous Paving Mixtures
takenoutofthewater,blottedquicklywithadampclothtowel,
D 1188 Test Method for Bulk Specific Gravity and Density
and weighed in air. The difference between the two masses is
of Compacted Bituminous Mixtures Using Coated
used to measure the mass of an equal volume of water at 25°C.
Samples
4.2 This test method provides guidance for determination of
D 3203 Test Method for Percent Air Voids in Compacted
the oven dry or thoroughly dry mass of the specimen.The bulk
Dense and Open Bituminous Paving Mixtures
specific gravity is calculated from these masses. Then the
D 3666 SpecificationforMinimumRequirementsforAgen-
density is obtained by multiplying the specific gravity of the
cies Testing and Inspecting Road and Paving Materials
specimen by the density of the water.
D 4753 Guide for Evaluating, Selecting, and Specifying
Balances and Standard Masses for Use in Soil, Rock, and
5. Significance and Use
Construction Materials Testing
5.1 The results obtained from this test method can be used
D 5361 Practice for Sampling Compacted Bituminous Mix-
to determine the unit weight of compacted dense bituminous
tures for Laboratory Testing
mixtures and in conjunction with Test Method D 3203,to
obtain percent air voids. These values in turn may be used in
1
This test method is under the jurisdiction of ASTM Committee D04 on Road
determining the relative degree of compaction.
and Paving Materials and is the direct responsibility of Subcommittee D04.21 on
5.2 Since specific gravity has no units, it must be converted
Specific Gravity and Density of Bituminous Mixtures.
to density in order to do calculations that require units. This
Current edition approved July 1, 2008. Published July 2008. Originally approved
in 1968. Last previous edition approved in 2005 as D 2726 – 05a. conversion is made by multiplying the specific gravity at a
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
given temperature by the density of water at the same tempera-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
ture.
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 ----------------------
D2726–08
NOTE 1—The personnel and equipment used in performing this test can
thoroughly dry (that is, laboratory-prepared dried specimens),
be evaluated in accordance with Practice D 3666.
are to be tested in accordance with 9.2.All others are assumed
to contain moisture or solvent and are to
...
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:D2726–05a Designation: D 2726 – 08
Standard Test Method for
Bulk Specific Gravity and Density of Non-Absorptive
1
Compacted Bituminous Mixtures
This standard is issued under the fixed designation D 2726; 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 Department of Defense.
1. Scope*
1.1 This test method covers the determination of bulk specific gravity and density of specimens of compacted bituminous
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 10.3.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
D 979 Practice for Sampling Bituminous Paving Mixtures
D 1188 Test Method for Bulk Specific Gravity and Density of Compacted Bituminous Mixtures Using Paraffin-Coated
SpecimensCoated Samples
D 3203 Test Method for Percent Air Voids in Compacted Dense and Open Bituminous Paving Mixtures
D 3666 Specification for Minimum Requirements for Agencies Testing and Inspecting Road and Paving Materials
D 4753Specification Guide for Evaluating, Selecting, and Specifying Balances and Standard Masses for Use in Soil, Rock, and
Construction Materials Testing
D 5361 Practice for Sampling Compacted Bituminous Mixtures for Laboratory Testing
D 6752Test Method for Bulk Specific Gravity and Density of Compacted Bituminous Mixtures Using Automatic Vacuum
Sealing Method Test Method for Bulk Specific Gravity and Density of Compacted Bituminous Mixtures Using Automatic
Vacuum Sealing Method
D 7227 Practice for Rapid Drying of Compacted Asphalt Specimens Using Vacuum Drying Apparatus
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 to
the mass of an equal volume of water at the same temperature.
4. Summary of Test Method
4.1 The specimen is immersed in a water bath at 25°C (77°F). The mass under water is recorded, and the specimen is taken out
ofthewater,blottedquicklywithadampclothtowel,andweighedinair.Thedifferencebetweenthetwomassesisusedtomeasure
the mass of an equal volume of water at 25°C.
4.2 This test method provides guidance for determination of the oven dry or thoroughly dry mass of the specimen. The bulk
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 Sept. 15, 2005.July 1, 2008. Published September 2005.July 2008. Originally approved in 1968. Last previous edition approved in 2005 as
D 2726 – 05a.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book ofASTM 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 ----------------------
D2726–08
specific gravity is calculated from these masses. Then the density is obtained by multiplying the specific gravity of the specimen
by the density of the water.
5. Significance and Use
5.1 Theresultsobtainedfromthistestmethodcanbeusedtodeterminetheunitweightofcompacteddensebituminousmixtures
and in conjunction with Test Method D 3203, 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 cal
...
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