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This document evaluates different binder test methods for their ability to predict low temperature cracking in asphalt mixes. The bending beam rheometer (BBR) test, which measures stiffness and creep rate, is found to best correlate with the Thermal Stress Restrained Specimen Test (TSRST), which measures cracking in asphalt mixes. For unmodified binders, the correlation between BBR limiting temperature and TSRST cracking temperature is high. For polymer modified binders the correlation is lower but follows

Author

dhanesh kumar

Language

EN