AASHTO R 92-18 PDF Download

AASHTO R 92-18 is a standard practice that outlines the procedure for evaluating the elastic behavior of asphalt binders using the Multiple Stress Creep Recovery (MSCR) test. This test is conducted using a Dynamic Shear Rheometer (DSR) at a specific temperature. The purpose of this standard is to provide a method for assessing the performance characteristics of asphalt binders, specifically their ability to recover from deformation under various stress levels. The MSCR test results are expressed in terms of percent recovery and non-recoverable creep compliance. The standard specifies that the MSCR test should be performed on residue obtained from the Rolling Thin-Film Oven Test (RTFOT) as well as the Pressurized Aging Vessel (PAV).