高粘沥青胶浆动态剪切流变特性  

Dynamic Shear Rheological Properties of Mortars with High Viscosity Asphalt

作　　者：邢明亮[1,2,3] 李祖仲[1,2] 何锐[1,2] 毛雪松[4] 周燕[5] 陈拴发[1,2] 

机构地区：[1]长安大学材料科学与工程学院,陕西西安710061 [2]长安大学交通铺面材料教育部工程研究中心,陕西西安710061 [3]广西道路结构与材料重点实验室,广西南宁530007 [4]特殊地区公路工程教育部重点实验室,陕西西安710064 [5]天津城市建设学院土木工程系,天津300384

出　　处：《材料科学与工程学报》2016年第4期556-559,580,共5页Journal of Materials Science and Engineering

基　　金：中国博士后科学基金资助项目(2015M582592);国家自然科学基金资助项目(51208337);青海省科技计划资助项目(2014-GX-A2A);中央高校基本科研业务费专项资金资助项目(310831151080;310831153409;310831153315;310831151085);浙江省交通运输厅科研计划资助项目(2014H38);天津市应用基础与前沿技术研究计划资助项目(15JCYBJC48800)

摘　　要：针对探索不同类型的高粘沥青胶浆动态剪切流变特性,有利于完善多孔沥青混合料配合比设计。分析材料组成、粉胶比、温度等对高粘沥青胶浆动态剪切流变特性的影响,结果表明,沥青粘度高、矿粉比表面积大,形成的高粘沥青胶浆相位角相对较小,抗车辙因子较大;与矿粉类型相比,沥青性质对胶浆抗车辙因子影响显著,对改善胶浆抗高温变形能力起主导作用;粉胶比增大,抗车辙因子随之增大,并随温度变化呈幂函数关系变化趋势。提高改性沥青粘度或增大矿粉比表面积,均可有效降低高粘沥青胶浆抗车辙因子的温度敏感性,改善高粘沥青胶浆高温抗变形性能。In completion of mix proportion design of porous asphalt mixture, it is advantageous to explore dynamic shear rheological properties of mortars with high viscosity asphalt. Influence of composition materials, ratio of filler to bitumen and processing temperature was analyzed to mortars with high viscosity asphalt on dynamic shear rheological properties. Results indicated that asphalt mortar composed of higher viscosity asphalt and mineral podwer with larger specific surface area has smaller phase angle and bigger anti- rutting factor （G^＊/sinδ）. Compared with the mineral podwer type, asphalt property, which plays main role in improving the high temperature deformation resistance of asphalt mortar, has the significant influence on the anti-rutting factor. Anti rutting factor increases with increase of the ratio of filler to bitumen, and changes with temperature in a power function manner. Therefore, the temperature sensitivity of asphalt mortar can be decreased by increasing viscosity of the asphalt and specific surface area of the mineral powder, and thus improve the high temperature deformation resistance of the asphalt mortar

关 键 词：道路工程 高粘沥青胶浆 动态剪切流变性能 抗车辙因子 感温性 

分 类 号：U414.75[交通运输工程—道路与铁道工程]