基于正交试验的水发泡温拌沥青混合料体积性能研究  

Volumetric Property of Water Foamed Warm-mix Asphalt Mixture Based on Orthogonal Experiment

作　　者：宋宽彬 陈建新[2] 范文忠[3] 沈菊男[1] 

机构地区：[1]苏州科技学院土木工程学院,江苏苏州215011 [2]苏州市交通运输局,江苏苏州215001 [3]苏州交通工程集团有限公司,江苏苏州215031

出　　处：《公路交通科技》2015年第10期19-24,共6页Journal of Highway and Transportation Research and Development

基　　金：国家自然科学基金项目(51378328);江苏省交通运输厅科技计划项目(2012C01)

摘　　要：设计一组4因素3水平的正交试验L9（34）,研究了马歇尔击实次数、沥青发泡用水量、沥青含量和击实温度对水发泡温拌沥青混合料体积性能的影响,得出发泡温拌沥青混合料的最佳配合比设计组合为双面击实75次,发泡用水量1.5%,沥青含量4.9%,击实温度130~135℃。在此最佳配合比设计组合下成型的马歇尔试件相关体积性能和热拌沥青混合料差异很小,能够实现降温10~15℃,为发泡温拌沥青混合料的配合比设计和施工提供了参考依据。An orthogonal experiment L9 （ 34 ） containing 9 groups of 4 factors and 3 levels is designed. The influence of Marshall compaction time, asphalt foaming water content, asphalt content and compaction temperature on the volumetric property of water foamed warm-mix asphalt mixture is researched. It is found that （1） the best mix design combination is 75 double-sided compaction, 1.5% foaming water content, 4.9% asphalt content, 130 - 135 ℃ compaction temperature; （2） the volume performance of Marshall specimens of warm-mix asphalt mixture made in this optimum mix design combination are very similar to those of hot-mix asphalt mixture, the compaction temperature is reduced by 10 - 15 ℃, which can provide a practical reference for mix design and construction of water foamed warm-mix asphalt mixtures.

关 键 词：道路工程 温拌沥青混合料 正交试验 体积性能 水发泡 

分 类 号：U416.217[交通运输工程—道路与铁道工程]