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为分析季铵盐类表面活性剂(QAS)对沥青及沥青混合料性能的影响,对添加季铵盐类表面活性剂的沥青胶结料及沥青混合料(AC-20C、ATB-25)进行了相关路用性能试验。结果表明:QAS的添加对沥青的技术指标无明显影响,并且不改变沥青的高低温性能;QAS沥青混合料拌和温度较标准温度低0～30℃的范围内,可满足现行施工技术规范对热拌沥青混合料的要求。同时,其高温性能、水损害性能、低温性能及疲劳性能与标准温度下的热拌沥青混合料相当,具有良好的路用性能效果。QAS可作为温拌及低温环境下施工的沥青混合料添加剂。
In order to analyze the influence of quaternary ammonium surfactants (QAS) on the properties of asphalt and asphalt mixture, the asphalt binder and asphalt mixture (AC-20C, ATB-25) with quaternary ammonium surfactants added were correlated Road performance test. The results show that: the addition of QAS has no obvious effect on the technical index of asphalt and does not change the high and low temperature performance of asphalt; the mixing temperature of QAS asphalt mixture is lower than the standard temperature by 0 ~ 30 ℃, which can meet the requirements of current construction technology Mix asphalt requirements. At the same time, its high temperature performance, water damage performance, low temperature performance and fatigue properties with the standard temperature hot mix asphalt, with good road performance results. QAS can be used as a warm mix and low temperature construction of the asphalt mixture additives.