AASHTO T 391-2020
Standard Method of Test for Estimating Fatigue Resistance of Asphalt Binders Using the Linear Amplitude Sweep

Standard No.

AASHTO T 391-2020

Release Date

2020

Published By

The American Road & Transportation Builders Association

Latest

AASHTO T 391-2020

Scope

This test method covers the determination of the fatigue damage resistance of asphalt binders by cyclic loading and linearly increasing load amplitudes. A dynamic shear rheometer (DSR) is used to perform amplitude sweeps at the road performance temperature determined from the PG grade of the asphalt binder according to specification M 320. This test method can be used to simulate the fatigue resistance of in-service asphalt pavement binders after RTFOT aging (T 240) and PAV aging (R 28) treatments.

AASHTO T 391-2020 Referenced Document

• AASHTO M 320 Standard Specification for Performance-Graded Asphalt Binder*， 2025-05-18 Update
• AASHTO R 28 Standard Practice for Accelerated Aging of Asphalt Binder Using a Pressurized Aging Vessel (PAV)
• AASHTO T 240 Standard Method of Test for Effect of Heat and Air on a Moving Film of Asphalt Binder (Rolling Thin-Film Oven Test) (ASTM Designation: D2872-22)
• AASHTO T 315 Standard Method of Test for Determining the Rheological Properties of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)

AASHTO T 391-2020 history

• 2020 AASHTO T 391-2020 Standard Method of Test for Estimating Fatigue Resistance of Asphalt Binders Using the Linear Amplitude Sweep

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