ASTM D1856-21
(Test Method)Standard Test Method for Recovery of Asphalt from Solution by Abson Method
Standard Test Method for Recovery of Asphalt from Solution by Abson Method
SIGNIFICANCE AND USE
4.1 The asphalt should be extracted from the aggregate-asphalt mixture in accordance with Method A of Test Methods D2172/D2172M (centrifuge method) or D8159 as there is some experimental evidence that the recovered asphalt may have slightly lower penetration values when recovered from solutions obtained from hot extraction methods.
SCOPE
1.1 This test method covers the recovery by the Abson method of asphalt from a solution from a previously conducted extraction. The asphalt is recovered with properties substantially the same as those it possessed in the bituminous mixture and in quantities sufficient for further testing.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information only.
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
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Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D1856 − 21
Standard Test Method for
1
Recovery of Asphalt from Solution by Abson Method
This standard is issued under the fixed designation D1856; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D6368Specification for Vapor-Degreasing Solvents Based
on normal-Propyl Bromide and Technical Grade normal-
1.1 This test method covers the recovery by the Abson
Propyl Bromide
methodofasphaltfromasolutionfromapreviouslyconducted
D8159Test Method for Automated Extraction of Asphalt
extraction. The asphalt is recovered with properties substan-
Binder from Asphalt Mixtures
tially the same as those it possessed in the bituminous mixture
E1Specification for ASTM Liquid-in-Glass Thermometers
and in quantities sufficient for further testing.
1.2 The values stated in SI units are to be regarded as the
3. Summary of Test Method
standard. The values given in parentheses are provided for
information only.
3.1 The solution of solvent and asphalt from an asphalt mix
extraction is distilled under prescribed conditions to a point
1.3 This standard does not purport to address all of the
where most of the solvent has been distilled, at which time
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- carbon dioxide gas is introduced into the distillation process to
priate safety, health, and environmental practices and deter- remove all traces of the extraction solvent. The recovered
mine the applicability of regulatory limitations prior to use. asphalt (distillation residue) can then be subjected to further
1.4 This international standard was developed in accor- testing as required.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
4. Significance and Use
Development of International Standards, Guides and Recom-
4.1 The asphalt should be extracted from the aggregate-
mendations issued by the World Trade Organization Technical
asphalt mixture in accordance with MethodAof Test Methods
Barriers to Trade (TBT) Committee.
D2172/D2172M (centrifuge method) or D8159 as there is
some experimental evidence that the recovered asphalt may
2. Referenced Documents
have slightly lower penetration values when recovered from
2
2.1 ASTM Standards:
solutions obtained from hot extraction methods.
C670Practice for Preparing Precision and Bias Statements
for Test Methods for Construction Materials
5. Apparatus
D2172/D2172MTestMethodsforQuantitativeExtractionof
Asphalt Binder from Asphalt Mixtures
5.1 Centrifuge, batch unit capable of exerting a minimum
D2939Test Methods for Emulsified Bitumens Used as
centrifugal force of 770 times gravity or continuous unit
3
Protective Coatings (Withdrawn 2012)
capable of exerting a minimum force of 3000 times gravity.
D4080Specification for Trichloroethylene, Technical and
5.2 Centrifuge Tubes—A supply of wide-mouth bottles or
Vapor-Degreasing Grade
centrifuge tubes may be used for the batch unit. A tube as
illustrated in Fig. 1 has been found satisfactory for the
continuous unit.
1
This test method is under the jurisdiction of ASTM Committee D04 on Road
and Paving Materials and is the direct responsibility of Subcommittee D04.25 on
5.3 DistillationAssembly,asshowninFig.2,andconsisting
Analysis of Asphalt Mixtures.
of the following items:
Current edition approved May 1, 2021. Published June 2021. Originally
approved in 1961. Last previous edition approved in 2015 as D1856–09 (2015).
5.3.1 Extraction Flasks—Two 250-mL, wide-mouth, heat-
DOI: 10.1520/D1856-21.
resistant flasks, one for distillation and the other for the
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
receiver.
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
5.3.2 Glass Tubing—Heat-resistant glass tubing, having
the ASTM website.
3 10-mm inside diameter and gooseneck shaped (as shown in
The last approved version of this historical standard is referenced on
www.astm.org. Fig. 2) for connecting the flask to the condenser.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D1856 − 21
FIG. 1 Centrifuge Tube Example
FIG. 2 Distillation Assembly for Bitumen Recovery
2
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...
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: D1856 − 09 (Reapproved 2015) D1856 − 21
Standard Test Method for
1
Recovery of Asphalt Fromfrom Solution by Abson Method
This standard is issued under the fixed designation D1856; 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.
1. Scope
1.1 This test method covers the recovery by the Abson method of asphalt from a solution from a previously conducted extraction.
The asphalt is recovered with properties substantially the same as those it possessed in the bituminous mixture and in quantities
sufficient for further testing.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information
only.
1.3 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
C670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials
D2172D2172/D2172M Test Methods for Quantitative Extraction of Asphalt Binder from Asphalt Mixtures
3
D2939 Test Methods for Emulsified Bitumens Used as Protective Coatings (Withdrawn 2012)
D4080 Specification for Trichloroethylene, Technical and Vapor-Degreasing Grade
D6368 Specification for Vapor-Degreasing Solvents Based on normal-Propyl Bromide and Technical Grade normal-Propyl
Bromide
D8159 Test Method for Automated Extraction of Asphalt Binder from Asphalt Mixtures
E1 Specification for ASTM Liquid-in-Glass Thermometers
3. Summary of Test Method
3.1 The solution of solvent and asphalt from an asphalt mix extraction is distilled under prescribed conditions to a point where
most of the solvent has been distilled, at which time carbon dioxide gas is introduced into the distillation process to remove all
traces of the extraction solvent. The recovered asphalt (distillation residue) can then be subjected to further testing as required.
1
This test method is under the jurisdiction of ASTM Committee D04 on Road and Paving Materials and is the direct responsibility of Subcommittee D04.25 on Analysis
of Asphalt Mixtures.
Current edition approved Jan. 1, 2015May 1, 2021. Published February 2015June 2021. Originally approved in 1961. Last previous edition approved in 20092015 as
D1856 – 09.D1856 – 09 (2015). DOI: 10.1520/D1856-09R15.10.1520/D1856-21.
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.
3
The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D1856 − 21
4. Significance and Use
4.1 The asphalt should be extracted from the aggregate-asphalt mixture in accordance with Method A of Test Methods
D2172D2172/D2172M (centrifuge method) or D8159 as there is some experimental evidence that the recovered asphalt may have
slightly lower penetration values when recovered from solutions obtained from hot extraction methods.
5. Apparatus
5.1 Centrifuge, batch unit capable of exerting a minimum centrifugal force of 770 times gravity or continuous unit capable of
exerting a minimum force of 3000 times gravity.
5.2 Centrifuge Tubes—A supply of wide-mouth bottles or centrifuge tubes may be used for the batch unit. A tube as illustrated
in Fig. 1 has been found satisfactory for the continuous unit.
5.3 Distillation Assembly, as shown in Fig. 2, and consisting of the following items:
5.3.1 Extraction Flasks—Two 250-ml,250-mL, wide-mouth, heat-resistant flasks, one for distillation and the other for the receiver.
5.3.2
...
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