排水沥青路面抗冻融循环性能研究  

Study on the Anti-freeze-thaw Cycles Performance of Porous Asphalt Pavement

作　　者：刘少华 潘宝峰[1] 许斌 王丽丽[4] 李耘宇 曹东伟[2,3] LIU Shaohua;PAN Baofeng;XU Bin;WANG Lili;LI Yunyu;CAO Dongwei(School of Transportation, Dalian University of Technology, Dalian 116024, China;Zhonglugaoke (Beijing) Road Technology Co. Ltd., Beijing 100088, China;Research Institute of Highway Ministry of Transport, Beijing 100088, China;Shijiazhuang Jiaojian Expressway Construction Management Co. Ltd., Shijiazhuang 050085, China;School of Transportation, Wuhan University of Technology, Wuhan 430063, China)

机构地区：[1]大连理工大学交通运输学院,大连116024 [2]中路高科(北京)公路技术有限公司,北京100088 [3]交通运输部公路科学研究院,北京100088 [4]石家庄市交建高速公路建设管理有限公司,石家庄050085 [5]武汉理工大学交通与物流工程学院,武汉430063

出　　处：《武汉理工大学学报（交通科学与工程版）》2022年第1期115-119,共5页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：河北省交通运输厅科技项目(XF2018-10);国家科技部国际合作项目(2016YFE0108200)。

摘　　要：为研究排水沥青路面抗冻融循环性能,通过室内冻融循环试验分析不同级配、不同空隙率的排水沥青混合料冻融循环后的抗飞散能力.结果表明:对于排水沥青混合料,级配越细,最大粒径越小,空隙率越小,混合料冻融循环后抗飞散性能越好,聚酯纤维可以有效改善排水沥青混合料冻融循环后的抗飞散能力,相对于饱水冻融循环,无水冻融循环条件下排水沥青混合料的飞散损失更小.在北方地区修建排水沥青路面,推荐级配为PAC-13,空隙率控制在20%~22%为宜.In order to study the anti-freeze-thaw cycle performance of porous asphalt pavement,the anti-ravelling ability of porous asphalt mixtures with different gradations and different air voids after freeze-thaw cycles were analyzed through indoor freeze-thaw cycle tests.The results show that for the drainage asphalt mixture,the finer the gradation,the smaller the maximum particle size and the smaller the porosity,and the better the anti-ravelling performance of the mixture after freeze-thaw cycle.Polyester fiber can effectively improve the anti-flying ability of drainage asphalt mixture after freeze-thaw cycle.Compared with saturated freeze-thaw cycle,the flying loss of drainage asphalt mixture under anhydrous freeze-thaw cycle is smaller.For the construction of drainage asphalt pavement in the northern region,the recommended gradation is PAC-13,and the porosity should be controlled at 20%~22%.

关 键 词：道路工程 排水沥青路面 冻融循环 抗飞散性能 

分 类 号：U416.217[交通运输工程—道路与铁道工程]