ASTM D7496-17
(Test Method)Standard Test Method for Viscosity of Emulsified Asphalt by Saybolt Furol Viscometer
Standard Test Method for Viscosity of Emulsified Asphalt by Saybolt Furol Viscometer
SIGNIFICANCE AND USE
3.1 Viscosity has significance in the use of emulsified asphalts because it is a property which affects their utility. When used in application types of construction, the material must be thin enough to be uniformly applied through the spray bar of distributor, yet thick enough so that it will not flow from the crown or grade of the road. For mixing-grade emulsions, the viscosity may affect mixibility and resulting thickness of film on the aggregate. The viscosity of many emulsified asphalts is affected by shear. Therefore, strict adherence to test procedure is necessary to achieve precision.
SCOPE
1.1 This test method utilizes the Saybolt Furol viscometer to measure the consistency of emulsified asphalt. It is applicable to all the emulsified asphalts specified in Specifications D977 and D2397.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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
Relations
Buy Standard
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D7496 −17
Standard Test Method for
Viscosity of Emulsified Asphalt by Saybolt Furol
1
Viscometer
This standard is issued under the fixed designation D7496; 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 3. Significance and Use
3.1 Viscosity has significance in the use of emulsified
1.1 ThistestmethodutilizestheSayboltFurolviscometerto
asphalts because it is a property which affects their utility.
measure the consistency of emulsified asphalt. It is applicable
When used in application types of construction, the material
to all the emulsified asphalts specified in Specifications D977
must be thin enough to be uniformly applied through the spray
and D2397.
bar of distributor, yet thick enough so that it will not flow from
1.2 The values stated in SI units are to be regarded as
the crown or grade of the road. For mixing-grade emulsions,
standard. No other units of measurement are included in this
the viscosity may affect mixibility and resulting thickness of
standard.
film on the aggregate. The viscosity of many emulsified
asphalts is affected by shear. Therefore, strict adherence to test
1.3 This standard does not purport to address all of the
procedure is necessary to achieve precision.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Sample Conditioning for Testing
priate safety, health, and environmental practices and deter-
4.1 All emulsified asphalts shall be properly stirred to
mine the applicability of regulatory limitations prior to use.
achieve homogeneity before testing.
1.4 This international standard was developed in accor-
4.2 All emulsified asphalts with the viscosity testing re-
dance with internationally recognized principles on standard-
quirements of 50 °C shall be heated to 50 6 3°Cinthe
ization established in the Decision on Principles for the
original sample container in a water bath or oven. The
Development of International Standards, Guides and Recom-
containershouldbeventedtorelievepressure.Afterthesample
mendations issued by the World Trade Organization Technical
reaches 50 6 3 °C, stir the sample to achieve homogeneity.
Barriers to Trade (TBT) Committee.
4.3 Emulsified asphalts with a viscosity testing require-
2. Referenced Documents
ments to 25 °C should be mixed or stirred at 25 63°Cinthe
original sample container to achieve homogeneity.
2
2.1 ASTM Standards:
NOTE 1—Emulsified asphalts with viscosity testing requirements of
D88 Test Method for Saybolt Viscosity
25 °C may be heated and stirred as specified in 4.2, if necessary. In the
D977 Specification for Emulsified Asphalt
event the method described in 4.2 is used, the sample should be cooled to
25 6 3 °C and stirred before testing.
D2397 Specification for Cationic Emulsified Asphalt
E1 Specification for ASTM Liquid-in-Glass Thermometers
5. Apparatus
E11 Specification for Woven Wire Test Sieve Cloth and Test
5.1 Viscometer—ASaybolt Furol viscometer conforming to
Sieves
the requirements specified in Test Method D88.
E1137/E1137M Specification for Industrial Platinum Resis-
tance Thermometers
5.2 Sieve—An 850-µm sieve or a 20-mesh strainer of wire
cloth, framed or unframed. Refer to Specification E11.
5.3 Thermometers—One of the following:
1
This test method is under the jurisdiction of ASTM Committee D04 on Road
5.3.1 ASTM No. 17C for tests at 25 °C andASTM No. 19C
and Paving Materials and is the direct responsibility of Subcommittee D04.42 on
for tests at 50 °C, conforming to the requirements of Specifi-
Emulsified Asphalt Test.
cation E1.
Current edition approved Sept. 1, 2017. Published September 2017. Originally
5.3.2 Aplatinumresistancethermometer(PRT)withaprobe
approved in 2009. Last previous edition approved in 2011 as D7496 – 11. DOI:
10.1520/D7496-17.
which conforms to the requirements of Specification E1137/
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
E1137M, readable to 0.1 °C. The PRT shall havea3or4 wire
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
connection configuration and the overall sheath length shall be
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. at least 50 mm greater than the immersion depth.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D7496−17
5.3.3 A metal-sheathed thermistor with a sensor similar in water bath or oven. Stir the sample thoroughly without
construction to the PRT described
...
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: D7496 − 11 D7496 − 17
Standard Test Method for
Viscosity of Emulsified Asphalt by Saybolt Furol
1
Viscometer
This standard is issued under the fixed designation D7496; 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 utilizes the Saybolt Furol viscometer to measure the consistency of emulsified asphalt. It is applicable to
all the emulsified asphalts specified in Specifications D977 and D2397.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information
only.standard. No other units of measurement are included in this standard.
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:
D88 Test Method for Saybolt Viscosity
D244 Test Methods and Practices for Emulsified Asphalts
D977 Specification for Emulsified Asphalt
D2397 Specification for Cationic Emulsified Asphalt
E1 Specification for ASTM Liquid-in-Glass Thermometers
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
E1137/E1137M Specification for Industrial Platinum Resistance Thermometers
3. Significance and Use
3.1 Viscosity has significance in the use of emulsified asphaltasphalts because it is a property which affects their utility. When
used in application types of construction, the material must be thin enough to be uniformly applied through the spray bar of
distributor, yet thick enough so that it will not flow from the crown or grade of the road. For mixing grade mixing-grade emulsions,
the viscosity may affect mixibility and resulting thickness of film on the aggregate. The viscosity of many emulsions emulsified
asphalts is affected by shear. Therefore, strict adherence to test procedure is necessary to achieve precision.
4. Sample Conditioning for Testing
4.1 All emulsified asphalts shall be properly stirred to achieve homogeneity before testing.
4.2 All emulsified asphalts with the viscosity testing requirements of 50°C50 °C shall be heated to 50 6 3°C3 °C in the original
sample container in a water bath or oven. The container should be vented to relieve pressure. After the sample reaches 50 6
3°C,3 °C, stir the sample to achieve homogeneity.
1
This test method is under the jurisdiction of ASTM Committee D04 on Road and Paving Materials and is the direct responsibility of Subcommittee D04.42 on Emulsified
Asphalt Test.
Current edition approved Dec. 1, 2011Sept. 1, 2017. Published January 2012September 2017. Originally published 2009 approved in 2009. Last previous edition approved
in 2011 as D7496D7496 – 11.–09. DOI: 10.1520/D7496-11.10.1520/D7496-17.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D7496 − 17
4.3 Emulsified asphalts with a viscosity testing requirements to 25°C25 °C should be mixed or stirred at 25 6 3°C3 °C in the
original sample container to achieve homogeneity.
NOTE 1—Emulsified asphalts with viscosity testing requirements of 25°C25 °C may be heated and stirred as specified in 4.2, if necessary. In the event
the method described in 4.2 method is used, the sample should be cooled to 25 6 3°C 3 °C and stirred before testing.
5. Apparatus
5.1 Viscometer—A Saybolt Furol viscometer conforming to the requirements specified in Test Method D88.
5.2 Sieve—A850-μm An 850-μm sieve or a 20-mesh strainer of wire cloth, framed or unframed. Refer to Specification E11.
5.3 Thermomete
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.