ASTM D2726/D2726M-14
(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 −14
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/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 U.S. 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
E77 Test Method for Inspection and Verification of Ther-
are to be regarded separately as standard. The values stated in
each system may not be exact equivalents; therefore, each mometers
E563 Practice for Preparation and Use of an Ice-Point Bath
system shall be used independently of the other. Combining
values from the two systems may result in non-conformance as a Reference Temperature
E644 Test Methods for Testing Industrial Resistance Ther-
with the standard.
mometers
1.4 This standard does not purport to address all of the
E1137 SpecificationforIndustrialPlatinumResistanceTher-
safety concerns, if any, associated with its use. It is the
mometers
responsibility of the user of this standard to establish appro-
E2251 Specification for Liquid-in-Glass ASTM Thermom-
priate safety and health practices and determine the applica-
eters with Low-Hazard Precision Liquids
bility of regulatory limitations prior to use.
3. Terminology
2. Referenced Documents
2
3.1 Definitions of Terms Specific to This Standard:
2.1 ASTM Standards:
3.1.1 bulk density—as determined by this test method, the
D979 Practice for Sampling Bituminous Paving Mixtures
mass of a metre cubed (or foot cubed) of the material at 25°C
D1188 TestMethodforBulkSpecificGravityandDensityof
[77°F].
Compacted Bituminous Mixtures Using Coated Samples
D3203 Test Method for Percent Air Voids in Compacted
3.1.2 bulk specific gravity—as determined by this test
Dense and Open Bituminous Paving Mixtures
method, the ratio of the mass of a given volume of material at
D3666 Specification for Minimum Requirements for Agen-
25°C [77°F] to the mass of an equal volume of water at the
cies Testing and Inspecting Road and Paving Materials
same temperature.
D4753 Guide for Evaluating, Selecting, and Specifying Bal-
ances and Standard Masses for Use in Soil, Rock, and
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
1
This test method is under the jurisdiction of ASTM Committee D04 on Road
takenoutofthewater,blottedquicklywithadampclothtowel,
and Paving Materials and is the direct responsibility of Subcommittee D04.21 on
Specific Gravity and Density of Asphalt Mixtures.
and weighed in air. The difference between the two masses is
Current edition approved Aug. 1, 2014. Published August 2014. Originally
used to measure the mass of an equal volume of water at 25°C
approved in 1968. Last previous edition approved in 2013 as D2726/D2726M – 13.
[77°F].
DOI: 10.1520/D2726_D2726M-14.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.2 This test method provides guidance for determination of
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
the oven dry or thoroughly dry mass of the specimen.The bulk
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. specific gravity is calculated from these masses. Then the
*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 − 14
at the ice point then the thermometer should be recalibrated.
density is obtained by multiplying the specific gravity of the
specimen by the density of the water.
6.4.2 A liquid-in-glass partial immersion thermometer of
suitable range with subdivisions and maxim
...
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/D2726M − 13 D2726/D2726M − 14
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/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 U.S. 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 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.
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
E77 Test Method for Inspection and Verification of Thermometers
E563 Practice for Preparation and Use of an Ice-Point Bath as a Reference Temperature
E644 Test Methods for Testing Industrial Resistance Thermometers
E1137 Specification for Industrial Platinum Resistance Thermometers
E2251 Specification for Liquid-in-Glass ASTM Thermometers with Low-Hazard Precision Liquids
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].
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 BituminousAsphalt Mixtures.
Current edition approved July 1, 2013Aug. 1, 2014. Published August 2013August 2014. Originally approved in 1968. Last previous edition approved in 20112013 as
D2726 – 11.D2726/D2726M – 13. DOI: 10.1520/D2726_D2726M-13.10.1520/D2726_D2726M-14.
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 − 14
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.
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
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 [77°F].
4.2 This test method provides guidance for determination of the ov
...
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