长陡坡路面大粒径沥青混合料路用性能研究及应用  

Study and application of performance of LSPM on long down slope pavement

作　　者：陈亮 Chen Liang(Gansu Province Transportation Planning,Survey&Design Institute Co.,Ltd.,Lanzhou Gansu 730030,China;Gansu Changlong Highway Maintenance Technology Institute Co.,Ltd.,Lanzhou Gansu 730030,China)

机构地区：[1]甘肃省交通规划勘察设计院股份有限公司,甘肃兰州730030 [2]甘肃畅陇公路养护技术研究院有限公司,甘肃兰州730030

出　　处：《山西建筑》2024年第8期114-117,共4页Shanxi Architecture

基　　金：甘肃省交通运输厅科研项目“基于全寿命周期的甘肃省高速公路沥青路面结构与材料优化设计研究”(项目编号:2020-04)。

摘　　要：结合大粒径沥青混合料在甘肃某公路应用实例,对大粒径沥青混合料在长陡坡重载交通水损害病害处治中路用性能及应用进行探讨。通过路面水损害形式及机理确定以“贝雷法”为基础的大粒径沥青混合料配合比设计思路,采用旋转压实方法克服室内试验与工程实际的环境差异以模拟粗集料的嵌挤状态,并选取车辙、渗透性和水稳定性指标验证其路用性能。甘肃某公路路面病害处治工程中大粒径沥青混合料的应用表明,该方法对长陡坡重载交通下水损害防治具有显著效果。Combined with the application of LSPM in a highway in Gansu,the performance and application in the treatment of heavy traffic water damage on long downslope are discussed.Through the form and mechanism of pavement water damage,the mix proportion design idea of LSPM based on“Bailey method”is determined.The rotary compaction method is used to overcome the environmental differences between indoor test and engineering practice,so as to simulate the embedded state of coarse aggregate.Select rutting,permeability and water stability indicators to verify its road performance.The application of LSPM in the pavement disease treatment project of a highway in Gansu shows that this method has a significant effect on the prevention and control of water damage caused by heavy load traffic on long downslope.

关 键 词：水损害 大粒径沥青混合料 配合比 路用性能 平整度 

分 类 号：TU535[建筑科学—建筑技术科学]