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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 mixability 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.
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 and .
1.2 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 noncompliance with the standard.
1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D88 Test Method for Saybolt Viscosity
D977 Specification for Emulsified Asphalt
D2397/D2397M 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
ICS Number Code 17.060 (Measurement of volume, mass, density, viscosity); 91.100.50 (Binders. Sealing materials); 93.080.20 (Road construction materials)
UNSPSC Code 30121601(Asphalt)
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ASTM D7496-18, Standard Test Method for Viscosity of Emulsified Asphalt by Saybolt Furol Viscometer, ASTM International, West Conshohocken, PA, 2018, www.astm.orgBack to Top