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Significance and Use
5.1 When asphalts are maintained at elevated temperatures in the presence of air, their characteristics may change. Certain blown asphalts also soften when maintained near, and particularly above, their final blowing temperatures under virtually air-free conditions. This may happen if the asphalt is overheated for application purposes. This practice provides a uniform heat-treatment procedure and methods for evaluating the effect of this treatment on some of the characteristics of asphalts. Changes observed when asphalts are overheated are not indicative of changes to be expected when asphalts are heated to normal application temperatures.
1.1 This practice covers a procedure for evaluating some of the effects on asphalts of heating in the presence of little or no air.
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 non-conformance with the 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D5/D5M Test Method for Penetration of Bituminous Materials
D36/D36M Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus)
D140/D140M Practice for Sampling Asphalt Materials
D1079 Terminology Relating to Roofing and Waterproofing
D2170/D2170M Test Method for Kinematic Viscosity of Asphalts (Bitumens)
D2171/D2171M Test Method for Viscosity of Asphalts by Vacuum Capillary Viscometer
D4402/D4402M Test Method for Viscosity Determination of Asphalt at Elevated Temperatures Using a Rotational Viscometer
E1 Specification for ASTM Liquid-in-Glass Thermometers
E145 Specification for Gravity-Convection and Forced-Ventilation Ovens
E230/E230M Specification for Temperature-Electromotive Force (emf) Tables for Standardized Thermocouples
E1137/E1137M Specification for Industrial Platinum Resistance Thermometers
ICS Number Code 91.100.50 (Binders. Sealing materials)
UNSPSC Code 30121601(Asphalt)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM D3791 / D3791M-11(2018), Standard Practice for Evaluating the Effects of Heat on Asphalts, ASTM International, West Conshohocken, PA, 2018, www.astm.orgBack to Top