ASTM D6997-12

Standard Test Method for Distillation of Emulsified Asphalt

SIGNIFICANCE AND USE
This test method can be used for quantitative determination of residue and oil distillates in emulsified asphalts for specification acceptance, service evaluation, control, and research. This test method can also be used to obtain residue and oil distillate for further testing. This method may not be appropriate for emulsified asphalts containing latex or polymer, however some specifying agencies may utilize this method and stipulate a lowered distillation temperature. By stipulating a lowered distillation temperature, the precision and bias statement may not be considered valid. Low temperature methods such as Test Method D7403 and Practice D7497 are options for obtaining residue for latex or polymer modified emulsified asphalts.
SCOPE
1.1 This test method covers the quantitative determination of residue and oil distillate in emulsified asphalts composed principally of a semisolid or liquid asphaltic base, water, and an emulsifying agent.
1.2 The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.
1.3 This test method 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.

General Information

• Status: Historical
• Publication Date: 31-Jan-2012
• ICS: 93.080.20 - Road construction materials
• Technical Committee: D04 - Road and Paving Materials
• Drafting Committee: D04.42 - Emulsified Asphalt Test

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D6997 −12
Standard Test Method for
1
Distillation of Emulsified Asphalt
This standard is issued under the fixed designation D6997; 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 specification acceptance, service evaluation, control, and re-
search.This test method can also be used to obtain residue and
1.1 This test method covers the quantitative determination
oil distillate for further testing. This method may not be
of residue and oil distillate in emulsified asphalts composed
appropriateforemulsifiedasphaltscontaininglatexorpolymer,
principally of a semisolid or liquid asphaltic base, water, and
howeversomespecifyingagenciesmayutilizethismethodand
an emulsifying agent.
stipulate a lowered distillation temperature. By stipulating a
1.2 The values stated in SI units are to be regarded as the
lowered distillation temperature, the precision and bias state-
standard. No other units of measurement are included in this
ment may not be considered valid. Low temperature methods
standard.
suchasTestMethodD7403andPracticeD7497areoptionsfor
1.3 This test method does not purport to address all of the obtaining residue for latex or polymer modified emulsified
safety concerns, if any, associated with its use. It is the
asphalts.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
5. Apparatus
bility of regulatory limitations prior to use.
5.1 Aluminum-Alloy Still—approximately 241 mm in height
by 95 mm inside diameter with cover and clamp as shown in
2. Referenced Documents
Fig. 1. The dimensions as noted in Fig. 1 are provided as
2
2.1 ASTM Standards:
referencefortheeaseoftheuserandareconsiderednoncritical
E1Specification for ASTM Liquid-in-Glass Thermometers
dimensions.
E11Specification forWovenWireTest Sieve Cloth andTest
NOTE 1—Residue by distillation results obtained with iron stills are
Sieves
acceptable.
D7403Test Method for Determination of Residue of Emul-
sified Asphalt by Low Temperature Vacuum Distillation
5.2 Gasket—a variety of gasket materials may be used to
D7497Practice for Recovering Residue from Emulsified seal the still providing they withstand the maximum tempera-
Asphalt Using Low Temperature Evaporative Technique
ture reached during distillation.
NOTE2—Useofagasketisoptionalifthejointcanbegroundtoatight
3. Summary of Method
fit or only residue recovery is required and further analysis on the water
3.1 A sample of emulsified asphalt is heated in an
or oil distillate is not needed.
aluminum-alloystillto260 65°Candthevolumesofdistillate
5.3 Heat Sources—having holes on the inner periphery and
and water obtained are measured. The residue from the
having three spacers, to ensure centering of burner around the
distillation, and also any oil portion of the distillate, may be
still(seeFig.2).ThedimensionsasnotedinFig.2areprovided
tested as required.
for reference for the ease of the user and are considered
non-critical dimensions.
4. Significance and Use
NOTE3—OptionaluseofaBunsenburner(equippedwithoptionalwing
4.1 This test method can be used for quantitative determi-
tip) as shown in Fig. 3.
nation of residue and oil distillates in emulsified asphalts for
5.4 Connection Apparatus—consisting of approximately 12
mm glass or metal connecting tube, tin shield (as detailed in
1
This test method is under the jurisdiction ofASTM Committee D04 on Road
Fig. 3), and a water-cooled glass condenser tube with a metal
and Paving Materials and is the direct responsibility of Subcommittee D04.42 on
or borosilicate glass jacket. The metal connecting tube may be
Emulsified Asphalt Test.
secured to the lid by a threaded compressing fitting. Glass
Current edition approved Feb. 1, 2012. Published February 2012. Last previous
version published 2004 as D6997–04. DOI: 10.1520/D6997-12.
connecting tube may be secured to the lid by means of a cork
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
or silicone stopper. Other condensers of approximately 12 mm
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
glass or metal tubing may be used, providing that the wetted
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. lengthis400to550mm.ThedimensionsasnotedinFig.3are
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D6997−12
6.2 All emulsified asphalts with viscosity testing require-
ments of 50°C shall be heated to 50 6 3°C in th
...

This document is not anASTM standard and is intended only to provide the user of anASTM 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:D6997–04 Designation: D6997 – 12
Standard Test Method for
1
Distillation of Emulsified Asphalt
This standard is issued under the fixed designation D6997; 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 quantitative determination of residue and oil distillate in emulsified asphalts composed
principally of a semisolid or liquid asphaltic base, water, and an emulsifying agent.
1.2
1.2 The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.
1.3 This test method 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:
E1 Specification forASTM Liquid-in-Glass Thermometers E11Specification for Woven Wire Test Sieve Cloth and Test Sieves
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
D7403 Test Method for Determination of Residue of Emulsified Asphalt by Low Temperature Vacuum Distillation
D7497 Practice for Recovering Residue from Emulsified Asphalt Using Low Temperature Evaporative Technique
3. Summary of Method
3.1 A sample of emulsified asphalt is heated in an aluminum-alloy still to 260 6 5°C and the volumes of distillate and water
obtained are measured. The residue from the distillation, and also any oil portion of the distillate, may be tested as required.
4. Significance and Use
4.1This test method can be used for quantitative determination of residue and oil distillates in emulsified asphalts for
specification acceptance, service evaluation, control, and research. This test method can also be used to obtain residue and oil
distillate for further testing.
4.1 This test method can be used for quantitative determination of residue and oil distillates in emulsified asphalts for
specification acceptance, service evaluation, control, and research. This test method can also be used to obtain residue and oil
distillateforfurthertesting.Thismethodmaynotbeappropriateforemulsifiedasphaltscontaininglatexorpolymer,howeversome
specifying agencies may utilize this method and stipulate a lowered distillation temperature. By stipulating a lowered distillation
temperature, the precision and bias statement may not be considered valid. Low temperature methods such as Test Method D7403
and Practice D7497 are options for obtaining residue for latex or polymer modified emulsified asphalts.
5. Apparatus
5.1 Aluminum-Alloy Still—approximately 240241 mm in height by 95 mm in inside diameter with cover and clamp as shown
in Fig. 1. A variety of gasket materials may be used to seal the still providing they withstand the maximum temperature reached
during distillation. . The dimensions as noted in Fig. 1 are provided as reference for the ease of the user and are considered
noncritical dimensions.
NOTE 1—Residue by distillation results obtained with iron stills are acceptable.
5.2 Gasket— a variety of gasket materials may be used to seal the still providing they withstand the maximum temperature
reached during distillation.
1
ThistestmethodisunderthejurisdictionofASTMCommitteeD04onRoadandPavingMaterialsandisthedirectresponsibilityofSubcommitteeD04.42onEmulsified
Asphalt Tests.
Current edition approved Aug. 1, 2004. Published August 2004. DOI: 10.1520/D6997-04.on Emulsified Asphalt Test.
Current edition approved Feb. 1, 2012. Published February 2012. Last previous version published 2004 as D6997–04. DOI: 10.1520/D6997-12.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. For Annual Book ofASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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D6997 – 12
FIG. 1 Aluminum-Alloy Still
NOTE 2—Use of a gasket is optional if the joint can be ground to a tight fit or only residue recovery is required and further analysis on the water or
oil distillate is not needed.
5.3 Heat Sources—one ring burner,
...