基于表面能理论的再生集料与沥青黏附性影响研究  

Study on the Influence of Adhesion Between Recycled Aggregate and Asphalt Based on Surface Energy Theory

作　　者：冯浩浩 苗强[1,2] 李振纲 罗蓉 FENG Haohao;MIAO Qiang;LI Zhengang;LUO Rong(School of Transportation,Wuhan University of Technology,Wuhan 430063,China;Hubei Highway Engineering Research Center,Wuhan 430063,China)

机构地区：[1]武汉理工大学交通与物流工程学院,武汉430063 [2]湖北省公路工程技术研究中心,武汉430063

出　　处：《武汉理工大学学报（交通科学与工程版）》2023年第5期891-896,共6页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：江西省交通运输厅科技项目(2020Z0002)。

摘　　要：文中通过测试再生集料和新集料的表观特性和表面能参数,明确再生集料和新集料表面能不同的根本原因是表观特性指标.基于表面能理论量化再生沥青混合料的抗水损害能力,计算7种不同再生集料掺配比例的沥青-集料匹配性指标ER值并通过水稳定性试验验证其可靠性,结合经济成本,确定再生集料的最佳掺配比例为20%.By testing the apparent properties and surface energy parameters of recycled aggregate and new aggregate,it is clear that the fundamental reason for the difference in surface energy between recycled aggregate and new aggregate is the apparent property index.Based on the surface energy theory,the water damage resistance of recycled asphalt mixture was quantified,and the ER value of asphalt-aggregate matching index of seven different recycled aggregate mixing ratios was calculated and its reliability was verified by water stability test.Combined with the economic cost,the optimum proportion of recycled aggregate is determined to be 20%.

关 键 词：沥青路面 表面能 再生集料 匹配性指标 水稳定性 

分 类 号：U414.1[交通运输工程—道路与铁道工程]