ASTM D6373-21a - 15.6.2021
 
1. Scope

1.1?This specification2 covers asphalt binders graded by performance. Grading designations are related to the LTPPBind calculated maximum pavement design temperature and the minimum pavement design temperature. This specification contains Tables 1 and 2. Table 2 incorporates Practice D6816 for determining the critical low cracking temperature using a combination of Test Method D6648 and Test Method D6723 test procedures. If no table is specified, the default is Table 1.

Note 1:?For more information on LTPPBind online, see https://infopave.fhwa.dot.gov/Tools/LTPPBindOnline accessed June 10, 2020.

Note 2:?For asphalt cements graded by penetration at 25 ?C, see Specification D946/D946M. For asphalt cements graded by viscosity at 60 ?C, see Specification D3381/D3381M.

Note 3:?AASHTO R 29 provides non-mandatory information for determining the performance grade of an asphalt binder.

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 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

D7175-25

Standard Test Method for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer

D6816-21

Standard Practice for Determining Low-Temperature Performance Grade (PG) of Asphalt Binders (Withdrawn 2021)

D3381-09

Standard Specification for Viscosity-Graded Asphalt Cement for Use in Pavement Construction

D2872-22

Standard Test Method for Effect of Heat and Air on a Moving Film of Asphalt Binder (Rolling Thin-Film Oven Test)

D2171-07

Standard Test Method for Viscosity of Asphalts by Vacuum Capillary Viscometer

D2170-07

Standard Test Method for Kinematic Viscosity of Asphalts (Bitumens)

D2042-25

Standard Test Method for Solubility of Asphalt Materials

D946-09

Standard Specification for Penetration-Graded Asphalt Cement for Use in Pavement Construction

D140-01

Standard Practice for Sampling Bituminous Materials

D95-23e1

Standard Test Method for Water in Petroleum Products and Bituminous Materials by Distillation (Includes all amendments and changes 10/25/2024).

D92-24

Standard Test Method for Flash and Fire Points by Cleveland Open Cup Tester

D8-26

Standard Terminology Relating to Materials for Roads and Pavements

D6521-22

Standard Practice for Accelerated Aging of Asphalt Binder Using a Pressurized Aging Vessel (PAV)

D7553-15

Standard Test Method for Solubility of Asphalt Materials in N-Propyl Bromide

D5546-09

Standard Test Method for Solubility of Asphalt Binders in Toluene by Centrifuge (Withdrawn 2017)

D6648-25a

Standard Test Method for Determining the Flexural Creep Stiffness of Asphalt Binder Using the Bending Beam Rheometer (BBR) (Includes all amendments and changes 1/14/2026).

D6723-12

Standard Test Method for Determining the Fracture Properties of Asphalt Binder in Direct Tension (DT) (Withdrawn 2021)

D4402-06

Standard Test Method for Viscosity Determination of Asphalt at Elevated Temperatures Using a Rotational Viscometer