ASTM D2172-05

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Designation:D2172–05
Standard Test Methods for
Quantitative Extraction of Bitumen From Bituminous Paving
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Mixtures
This standard is issued under the fixed designation D2172; 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 C670 Practice for Preparing Precision and Bias Statements
for Test Methods for Construction Materials
1.1 These test methods cover the quantitative determination
D70 Test Method for Density of Semi-Solid Bituminous
of bitumen in hot-mixed paving mixtures and pavement
Materials (Pycnometer Method)
samples. Aggregate obtained by these test methods may be
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D604 Specification for Diatomaceous Silica Pigment
used for sieve analysis using Test Method C117 and Test
D979 Practice for Sampling Bituminous Paving Mixtures
Method C136.
D1461 Test Method for Moisture or Volatile Distillates in
1.2 The values stated in inch-pound units are to be regarded
Bituminous Paving Mixtures
as the standard. The values given in parentheses are for
D1856 Test Method for Recovery ofAsphalt From Solution
information only.
by Abson Method
1.3 This standard does not purport to address all of the
D2111 Test Methods for Specific Gravity and Density of
safety concerns, if any, associated with its use. It is the
Halogenated Organic Solvents and Their Admixtures
responsibility of the user of this standard to establish appro-
D6368 Specification for Vapor-Degreasing Solvents Based
priate safety and health practices and determine the applica-
on normal-Propyl Bromide and Technical Grade normal-
bilityofregulatorylimitationspriortouse.Specifichazardsare
Propyl Bromide
given in Section 7.
2.2 Federal Specifications:
NOTE 1—The results obtained by these test methods may be affected by 4
O-T-634 (latest) normal Propyl Bromide, Technical
the age of the material tested, with older samples tending to yield slightly
lowerbitumencontent.Bestquantitativeresultsareobtainedwhenthetest
3. Summary of Test Methods
is made on mixtures and pavements shortly after their preparation. It is
3.1 The paving mixture is extracted with trichloroethylene,
difficult to remove all the asphalt when some aggregates are used and
normal Propyl Bromide, or methylene chloride using the
some chlorides may remain within the mineral matter affecting the
measured asphalt content. extraction equipment applicable to the particular method. The
bitumen content is calculated by difference from the mass of
2. Referenced Documents
the extracted aggregate, moisture content, and mineral matter
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2.1 ASTM Standards:
in the extract. The bitumen content is expressed as mass
C117 TestMethodforMaterialsFinerthan75-µm(No.200)
percent of moisture-free mixtures.
Sieve in Mineral Aggregates by Washing
4. Significance and Use
C128 Test Method for Density, Relative Density (Specific
Gravity), and Absorption of Fine Aggregate
4.1 All of these test methods can be used for quantitative
C136 Test Method for Sieve Analysis of Fine and Coarse
determinations of bitumen in hot-mixed paving mixtures and
Aggregates
pavement samples for specification acceptance, service evalu-
ation, control, and research. Each method prescribes the
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solvent or solvents and any other reagents that can be used in
These test methods are under the jurisdiction of ASTM Committee D04 on
Road and Paving Materials and are the direct responsibilities of Subcommittee
the test method.Test Method D1856 requires that MethodAbe
D04.25 on Analysis of Bituminous Mixtures.
used when asphalt is recovered from solution.
Current edition approved July 15, 2005. Published August 2005. Originally
´1
approved in 1963. Last previous edition approved in 2001 as D2172 – 01 . DOI:
10.1520/D2172-05.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or Withdrawn. The last approved version of this historical standard is referenced
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM on www.astm.org.
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D2172–05
5. Apparatus 8.2.2 The size of the test sample shall be governed by the
nominal maximum aggregate size of the mixture and shall
5.1 Oven, capable of maintaining the temperature at 230 6
conform to the mass r
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