ASTM D2726-11
(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 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.
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 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:D2726 −11
StandardTest Method for
Bulk Specific Gravity and Density of Non-Absorptive
1
Compacted Bituminous Mixtures
This standard is issued under the fixed designation D2726; 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* D6752 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-
D7227 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
E1 Specification for ASTM Liquid-in-Glass Thermometers
contain open or interconnecting voids or absorb more than 2 %
of water by volume, or both, as determined in 11.3.
3. Terminology
1.3 The values stated in SI units are to be regarded as the
3.1 Definitions of Terms Specific to This Standard:
standard. The values given in parentheses are for information
3.1.1 bulk density—as determined by this test method, the
only.
mass of a metre cubed (or foot cubed) of the material at 25°C
(77°F).
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3.1.2 bulk specific gravity—as determined by this test
responsibility of the user of this standard to establish appro-
method, the ratio of the mass of a given volume of material at
priate safety and health practices and determine the applica-
25°C to the mass of an equal volume of water at the same
bility of regulatory limitations prior to use.
temperature.
2. Referenced Documents
4. Summary of Test Method
2
2.1 ASTM Standards:
4.1 The specimen is immersed in a water bath at 25°C
D979 Practice for Sampling Bituminous Paving Mixtures
(77°F). The mass under water is recorded, and the specimen is
D1188 TestMethodforBulkSpecificGravityandDensityof
takenoutofthewater,blottedquicklywithadampclothtowel,
Compacted Bituminous Mixtures Using Coated Samples
and weighed in air. The difference between the two masses is
D3203 Test Method for Percent Air Voids in Compacted
used to measure the mass of an equal volume of water at 25°C.
Dense and Open Bituminous Paving Mixtures
4.2 This test method provides guidance for determination of
D3666 Specification for Minimum Requirements for Agen-
the oven dry or thoroughly dry mass of the specimen.The bulk
cies Testing and Inspecting Road and Paving Materials
specific gravity is calculated from these masses. Then the
D4753 Guide for Evaluating, Selecting, and Specifying Bal-
density is obtained by multiplying the specific gravity of the
ances and Standard Masses for Use in Soil, Rock, and
specimen by the density of the water.
Construction Materials Testing
D5361 Practice for Sampling Compacted Bituminous Mix-
5. Significance and Use
tures for Laboratory Testing
5.1 The results obtained from this test method can be used
to determine the unit weight of compacted dense bituminous
mixturesandinconjunctionwithTestMethodD3203,toobtain
1
This test method is under the jurisdiction of ASTM Committee D04 on Road
percent air voids. These values in turn may be used in
and Paving Materials and is the direct responsibility of Subcommittee D04.21 on
Specific Gravity and Density of Bituminous Mixtures.
determining the relative degree of compaction.
Current edition approved Dec. 1, 2011. Published December 2011. Originally
5.2 Since specific gravity has no units, it must be converted
approved in 1968. Last previous edition approved in 2010 as D2726 – 10. DOI:
10.1520/D2726-11.
to density in order to do calculations that require units. This
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
conversion is made by multiplying the specific gravity at a
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
given temperature by the density of water at the same tempera-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. ture.
*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 ----------------------
D2726−11
NOTE 1—The personnel and equipment used in performing this test can
lengthofthesidesofsawedspecimens,beatleastequaltofour
be evaluated in accordance with Practice D3666.
times the maximum size of the aggregate; and (2) that the
thi
...
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:D2726–10 Designation: D2726 – 11
Standard Test Method for
Bulk Specific Gravity and Density of Non-Absorptive
1
Compacted Bituminous Mixtures
This standard is issued under the fixed designation D2726; 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 10.311.3.
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:
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 PracticeforRapidDryingofCompactedAsphaltSpecimensUsingVacuumDryingApparatusPracticeforRapidDrying
of Compacted Asphalt Specimens Using Vacuum Drying Apparatus
E1 Specification for ASTM Liquid-in-Glass Thermometers
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 JuneDec. 1, 2010.2011. Published June 2010.December 2011. Originally approved in 1968. Last previous edition approved in 20092010 as
D2726 – 109. DOI: 10.1520/D2726-101.
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 – 11
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 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 r
...
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