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ASTM D7226-13(2017)

Historical Reaffirmation

Standard Test Method for Determining the Viscosity of Emulsified Asphalts Using a Rotational Paddle Viscometer

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1.1 This test method utilizes the rotational paddle viscometer to measure the viscosity of emulsified asphalt. It is applicable to all the emulsified asphalts described 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.


5.1 The viscosity of emulsified asphalts characterizes their flow properties and affects their utility at 50 °C or at other temperatures. The sprayability and workability of an emulsified asphalt are directly related to its viscosity for many applications. The material must be thin enough to be sprayed yet thick enough such that it will not flow from the crown or grade of the road. For mixing-grade emulsified asphalts, the viscosity will affect its workability and resulting film thickness on the aggregate. This test method is useful to measure the apparent viscosity of emulsified asphalt at a temperature of 50 °C, 25 °C, or another agreed-upon temperature. The preset temperature and rotational speed at 100 r/min allow for an automated and consistent determination of an emulsified asphalt viscosity within a short time.

SDO ASTM: ASTM International
Document Number D7226
Publication Date Oct. 1, 2017
Language en - English
Page Count 4
Revision Level 13(2017)
Supercedes
Committee D04.42
Publish Date Document Id Type View
Oct. 1, 2024 D7226-24 Revision
Dec. 1, 2013 D7226-13 Revision
Dec. 1, 2011 D7226-11 Revision
Dec. 1, 2010 D7226-10 Revision
Jan. 1, 2006 D7226-06E01 Revision
Jan. 1, 2006 D7226-06 Revision
March 1, 2023 D7226-13R23 Reaffirmation
Oct. 1, 2017 D7226-13R17 Reaffirmation