关键词: 沥青混合料, 动态模量, 主曲线, 抗压回弹模量, 围压, 温度

Abstract: Four types dynamic moduli of asphalt mixtures at different temperatures and frequencies were tested by Superpave Simple Performance Tester (SPT). According to time-temperature superpo sition principle, dynamic modulus master curves under different temperatures, frequencies and confining pressures were determined through nonlinear least square regression. High temperature stability was analyzed by the value of E* / sin . Contrastive study on compressive resilient modulus was conducted. The study indicated that types of mixtures, filler-bitumen ratio and confining pressure could exert great influence on high temperature stability of mixtures. Dynamic moduli could be impacted by types of mixtures, confining pressure and temperature.

Key words: asphalt mixture, dynamic modulus, master curve, compressive resilient modulus, confining pressure, temperature