TLA改性沥青的高温流变性能研究

Research on the Temperature Rheological Properties of TLA Modified Asphalt

采用动态力学分析方法对基质沥青和TLA改性沥青的高温动态流变性能进行研究,测定了一定温度和频率范围内的动态流变性能参数,并通过分析TLA掺量不同的改性沥青的动态性能参数变化规律来分析TLA对沥青的流变性能的影响,结果表明:加入TLA后沥青复数模量增大,相位角减小,沥青的车辙因子相应增大.

This paper applies dynamic mechanical analysis method to study the dynamic rheological properties of common asphalt and TLA modified asphalt in high-temperature;and measures the temperature and frequency parameters of the dynamic rheological properties within a certain range;and analyses the impact of the variation of the rheological properties of asphalt TLA through the analysis of different dosage TLA modified asphalt dynamic performance parameters.The results show that： after adding TLA increased asphalt complex modulus,phase angle decreases while asphalt rutting factor increases.