温拌沥青混合料施工温度确定方法  

Determination method of warm mix asphalt mixture construction temperature

作　　者：魏建国[1] 王兆仑[2] 付其林[1] 

机构地区：[1]长沙理工大学交通运输工程学院,湖南长沙410004 [2]河南交通职业技术学院公路学院,河南郑州450052

出　　处：《长安大学学报（自然科学版）》2013年第6期16-21,共6页Journal of Chang’an University(Natural Science Edition)

基　　金：国家自然科学基金项目(50208004);湖南省科技计划项目(2011FJ3176);公路工程教育部重点室实验室开放基金项目(KFJ090108)

摘　　要：针对温拌沥青混合性施工温度确定方法研究不足,通过粘度试验分析温度对温拌沥青表观粘度的影响规律,通过马歇尔试验分析击实温度对温拌沥青混合料空隙率、稳定度、流值等的影响规律,研究温拌沥青混合料施工温度确定方法的合理性。研究结果表明:基于等粘原理以普通沥青压实粘度评价温拌沥青压实粘度不合适,以稳定度为指标确定的温拌沥青混合料施工温度偏低,以空隙率为指标确定温拌沥青混合料施工温度是合理的;Sasobit使90#沥青混合料和SBS改性沥青混合料施工温度分别降低了20℃和23℃;3G使90#沥青混合料和SBS改性沥青混合料施工温度分别降低了26℃和15℃。For the inadequacy of determination method and based on the results of viscosity test, the pa per studied the influence of compaction temperature on the apparent viscosity of warm mix asphalt. And based on the results of Marshall test, the paper studied the influence of compaction temperature on the porosity, stability, flow value of warm mix asphalt mixture. And it studied the rationality of determina tion method of construction temperature of warm mix asphalt mixture Research shows that. based on the equiviscous principle, it is not reasonable to use the ordinary asphalt compaction viscosity to evaluate the warm mix asphalt compaction viscosity, and the temperature taking stability as evaluation index is low It is reasonable to determine the construction temperature of warm mix asphalt mixture with void ratio as evaluation index. Sasobit makes the construction temperature of 90° asphalt mixture decrease by 20 ℃ and SBS asphalt mixture decrease by 23 ℃. 3G makes the construction temperature of 90° asphalt mixture decrease by 26℃ and SBS asphalt mixture decrease by 15 ℃. 5 tabs, 4 figs, 16 refs.

关 键 词：道路工程 温拌沥青混合料 施工温度 确定方法 

分 类 号：U414.75[交通运输工程—道路与铁道工程]