大掺量胶粉改性沥青长寿命路面工程应用研究  

Application of High Percentage Asphalt Rubber Long Life Asphalt Pavement

作　　者：秦逸轩 许斌 QIN Yi-xuan;XU Bin(Hefei University of Technology,Hefei 230009,China;Beijing ZHONGLU GAOKE Highway Technology Company Limited,Beijing 100000,China)

机构地区：[1]合肥工业大学土木与水利工程学院,合肥市230009 [2]北京中路高科技术公司,北京市100000

出　　处：《公路》2025年第2期81-85,共5页Highway

基　　金：河北省交通运输厅科技计划项目,项目编号JD202001。

摘　　要：大掺量胶粉改性沥青是一种胶粉掺量大于30%的高性能沥青材料,可有效改善沥青混合料高低温等性能,尤其是提升沥青混合料抗疲劳性能。按照高质量高标准规划建设雄安新区的总体要求,雄安新区高速公路建设中创新应用了大掺量胶粉沥青长寿命沥青路面技术。长寿命路面结构采用典型的水泥稳定碎石半刚性基层,沥青面层采用了3层橡胶沥青混凝土结构层,上面层轮胎胶粉掺量为30%,中面层胶粉掺量为40%,下面层胶粉掺量为50%。经过室内试验分析和工程现场检测结果表明,该长寿命路面结构显著提升了路面整体承载能力和表面层耐久性,是一种经济适用的长寿命路面结构,具有广阔的推广应用前景。High content rubber powder modified asphalt is a high-performance asphalt material with a rubber powder content greater than 30%,which can effectively improve the high and low temperature performance of asphalt mixtures,especially the fatigue resistance of asphalt mixtures.In accordance with the overall requirements for the planning and construction of Xiongan New Area with high quality and high standards,the high-content rubber powder asphalt long-life asphalt pavement technology has been innovatively applied in the construction of expressways in Xiongan New Area.The long-life pavement structure adopts a typical cement-stabilized gravel semi-rigid base,and the asphalt surface layer adopts a three-layer rubber asphalt concrete structure layer,the upper layer of tire rubber powder content is 30%,the middle layer of rubber powder content is 40%,and the lower layer of rubber powder content is 50%.The results of laboratory test and field test show that the long-life pavement structure can significantly improve the overall bearing capacity of the pavement and the durability of the surface layer,which is an economical and applicable long-life pavement structure and with broad application prospect.

关 键 词：道路工程 长寿命路面 高掺量胶粉改性沥青 疲劳寿命 工程应用 

分 类 号：U416.217[交通运输工程—道路与铁道工程]