Simple Method to Evaluate Strength and Relaxation Properties of Asphalt Binders at Low Temperature

Low temperature cracking represents the main distress in asphalt pavements built in cold regions. During the Strategic Highway Research Program (SHRP) two test methods were developed to investigate the low temperature behavior of asphalt binders: bending beam rheometer (BBR) and direct tension tester (DTT). In this research, a simple testing protocol developed to obtain failure properties of asphalt binders at low temperatures is used to...