ASTM D2726/D2726M-13
(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
5.1 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.
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 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 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.
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Designation: D2726/D2726M −13
StandardTest Method for
Bulk Specific Gravity and Density of Non-Absorptive
1
Compacted Bituminous 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 Department of Defense.
1. Scope* Construction Materials Testing
D5361 Practice for Sampling Compacted Bituminous Mix-
1.1 This test method covers the determination of bulk
tures for Laboratory Testing
specific gravity and density of specimens of compacted bitu-
D6752 Test Method for Bulk Specific Gravity and Density
minous mixtures.
of Compacted Bituminous Mixtures Using Automatic
1.2 This test method should not be used with samples that
Vacuum Sealing Method
contain open or interconnecting voids or absorb more than 2 %
D7227 Practice for Rapid Drying of Compacted Asphalt
of water by volume, or both, as determined in 11.3.
Specimens Using Vacuum Drying Apparatus
1.3 The values stated in either SI units or inch-pound units E1 Specification for ASTM Liquid-in-Glass Thermometers
are to be regarded separately as standard. The values stated in
3. Terminology
each system may not be exact equivalents; therefore, each
3.1 Definitions of Terms Specific to This Standard:
system shall be used independently of the other. Combining
3.1.1 bulk density—as determined by this test method, the
values from the two systems may result in non-conformance
mass of a metre cubed (or foot cubed) of the material at 25°C
with the standard.
[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 [77°F] to the mass of an equal volume of water at the
priate safety and health practices and determine the applica-
same temperature.
bility of regulatory limitations prior to use.
4. Summary of Test Method
2. Referenced Documents
4.1 The specimen is immersed in a water bath at 25°C
2
2.1 ASTM Standards:
[77°F]. The mass under water is recorded, and the specimen is
D979 Practice for Sampling Bituminous Paving Mixtures
takenoutofthewater,blottedquicklywithadampclothtowel,
D1188 TestMethodforBulkSpecificGravityandDensityof
and weighed in air. The difference between the two masses is
Compacted Bituminous Mixtures Using Coated Samples
used to measure the mass of an equal volume of water at 25°C
D3203 Test Method for Percent Air Voids in Compacted
[77°F].
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.
5. Significance and Use
1
This test method is under the jurisdiction of ASTM Committee D04 on Road
5.1 The results obtained from this test method can be used
and Paving Materials and is the direct responsibility of Subcommittee D04.21 on
Specific Gravity and Density of Bituminous Mixtures.
to determine the unit weight of compacted dense bituminous
Current edition approved July 1, 2013. Published August 2013. Originally
mixturesandinconjunctionwithTestMethodD3203,toobtain
approved in 1968. Last previous edition approved in 2011 as D2726 – 11. DOI:
percent air voids. These values in turn may be used in
10.1520/D2726_D2726M-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or determining the relative degree of compaction.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.2 Since specific gravity has no units, it must be converted
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. to density in order to do calculations that require units. This
*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 − 13
conversion is made by multiplying the specific gravity at a 8.3 Pavement specimens shall be taken from pavements
given tempera
...
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 − 11 D2726/D2726M − 13
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;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 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 11.3.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as the standard. The values given in
parentheses are for information only.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.
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
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).[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]
to the mass of an equal volume of water at the same temperature.
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 Bituminous Mixtures.
Current edition approved Dec. 1, 2011July 1, 2013. Published December 2011August 2013. Originally approved in 1968. Last previous edition approved in 20102011 as
D2726 – 10.D2726 – 11. DOI: 10.1520/D2726-11.10.1520/D2726_D2726M-13.
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 − 13
4. Summary of Test Method
4.1 The specimen is immersed in a water bath at 25°C (77°F).[77°F]. The mass under water is recorded, and the specimen is
taken out of the water, blotted quickly with a damp cloth towel, and weighed in air. The difference between the two masses is used
to measure the mass of an equal volume of water at 25°C. 25°C [77°F].
4.2 This test method provides guidance for determination of the oven dry or thoroughly dry mass of the specimen. The bulk
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 The results obtained from this test method can be used to determine the unit weight of
...
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