New Test Method for Determining the Peak Stress Energy and Shear Fatigue Resistance of Asphalt Binder Using a Dynamic Shear Rheometer (DSR) Monotonic Shear Strength (MOSS) Test
1. Scope
1.1. This test method covers the determination of asphalt binder peak stress (tf), peak stress energy (Ef) and peak strain (?f) using the Monotonic Shear Strength (MOSS) Test. tf, Ef and ?f can be used to measure the strength, toughness and strain tolerance of an asphalt binder under constant shear loading. The MOSS test is conducted using the Dynamic Shear Rheometer (DSR) utilizing monotonic shear loading, and can performed on unaged or aged material, including materials conditioned in the Rolling Thin-Film Oven (RTFO) and Pressure Aging Vessel (PAV).
This test method is designed to evaluate the shear strength, toughness and strain tolerance of an asphalt binder under constant shear loading. The peak stress is an indicator of the shear strength of an asphalt binder under constant loading at a given temperature or stiffness. The peak stress energy is an indicator of the toughness of an asphalt binder under constant loading at a given temperature or stiffness. The peak strain is an indication of the strain tolerance of the binder at a given temperature or stiffness.
WK94249 - New Test Method for Determining the Peak Stress Energy and Shear Fatigue Resistance of Asphalt Binder Using a Dynamic Shear Rheometer (DSR) Monotonic Shear Strength (MOSS) Test | ASTM
