盐度对沥青混合料低温弯曲试验影响研究

Research on influence of salinity on low temperature bending test of asphalt mixtures

为研究沿海地区盐度对沥青混合料低温抗裂性能的影响,以普通沥青混合料为研究对象,进行沥青混合料低温弯曲试验,分别研究了浸泡天数、不同盐度和温度对弯曲实验结果的影响,结果表明:随着浸泡天数的增加,沥青混合料的性能逐渐下降;浸泡盐水较清水劲度模量小;浸泡温度也是关键影响因素。

In order to study the influences of salinity on low temperature anti-cracking property of asphalt mixture,taking asphalt mixture as the research object,the low temperature bend experiment of asphalt mixtures were carried on. There are there facts were considered： time,salinity and temperature. The results show that,with the times of immersion increasing,the performance is decreasing,and the stiffness modulus of mixture soaked in salt water is smaller,the temperature is also a key fact.