AASHTO M 82-17（2021） Standard Specification for Cutback Asphalt （Medium-Curing Type）.pdf

Standard Specification for Cutback Asphalt (Medium-Curing Type) AASHTO Designation:M 82-17(2021) Technically Revised:2017 Reviewed but Not Updated:2021 Technical Submittee:2a Emulsified Asphalts AASHIO American Association of State Highway and Transportation Officials 555 12th Street NW Suite 1000 Washington DC 20004 Standard Specification for Cutback Asphalt (Medium-Curing Type) AASHTO Designation:M 82-17(2021) AASHIO Technically Revised:2017 Reviewed but Not Updated:2021 Technical Submittee:2a Emulsified Asphalts 1. SCOPE 1.1. This specification covers liquid petroleum products produced by fluxing an asphalt base with suitable petroleum distillates to be used in the treatment of road surfaces. 1.2. The values stated in SI units are to be regarded as the standard. 2. GENERAL REQUIREMENTS 2.1. The cutback asphalt shall show no separation or curdling prior to use and shall not foam when heated to the application temperature. 3. PROPERTIES 3.1. Cutback asphalt of the grade designated shall conform to the requirements shown in Table 1. 4. METHODS OF SAMPLING AND TESTING 4.1. Sampling and testing cutback asphalt (medium-curing type)shall be in accordance with the following AASHTO and ASTM standards: ■R66 Sampling Asphalt Materials ■T44 Solubility of Bituminous Materials ■T49 Penetration of Bituminous Materials ■T51 Ductility of Asphalt Materials ■T72 Saybolt Viscosity ■T78 Distillation of Cutback Asphalt Products T 79 Flash Point with Tag Open-Cup Apparatus for Use with Material Having a Flash Point Less Than 93C(200F) ■T102 Spot Test of Asphaltic Materials ■T20l Kinematic Viscosity of Asphalts(Bitumens) ■T202 Viscosity of Asphalts by Vacuum Capillary Viseter ■ASTM D5 Standard Test Method for Water in Petroleum Products and Bituminous Materials by Distillation TS-2a M82-1 AASHTO 2021 by the American Association of State Highway and Transportation Officials. All rights reserved.Duplication is a violation of applicable law. Table 1-Minimum and Maximum Cutback Asp...