废旧油毡在沥青混合料中再利用的性能提升  

Elevation of performance about reclaimed paper-based asphalt felt in asphalt mixture

作　　者：胡小弟 李远豪 李镕西 潘攀 肖月[2] HU Xiao-di;LI Yuan-hao;LI Rong-xi;PAN Pan;XIAO Yue(School of Civil Engineering and Architecture,Wuhan Institute of Technology,Wuhan 430074,Hubei,China;State Key Laboratory of Silicate Materials for Architectures,Wuhan University of Technology,Wuhan 430070,Hubei,China)

机构地区：[1]武汉工程大学土木工程与建筑学院,湖北武汉430074 [2]武汉理工大学硅酸盐建筑材料国家重点实验室,湖北武汉430070

出　　处：《长安大学学报（自然科学版）》2023年第4期22-28,共7页Journal of Chang’an University(Natural Science Edition)

基　　金：国家自然科学基金项目(52178248)。

摘　　要：为实现废弃油毡(RPAF)在沥青路面工程中的资源化再利用,采用马歇尔设计方法确定了4种不同掺量(0%、10%、20%、30%,质量分数,下同)废弃油毡沥青混合料的最佳油石比,并在此基础上对比研究了其高温稳定性、低温抗裂性、水稳定性、老化性能、疲劳性能及黏弹特性。研究结果表明:废弃油毡可作为一种新型改性剂,用于制备改性沥青和沥青混合料。与基质沥青混合料相比,废弃油毡改性沥青混合料的最佳油石比随废弃油毡掺量的增加逐渐增大。当废弃油毡掺量由0%增至30%,废弃油毡改性沥青混合料的高温性能持续提升,混合料的抗水损性能、低温性能、抗老化性能和耐久性能均呈现先增强后减弱的变化趋势。同时,废弃油毡的掺入会影响混合料的温度敏感性。In order to realize the resource reuse of the reclaimed paper-based asphalt felt(RPAF)in asphalt mixture,the optimum asphalt aggregate ratio of RPAF modified asphaltmixture with different contents(0%,10%,20%,30%,mass fraction,the same below)by Marshall design method was determined.Then,the high-temperature stability,low-temperature crack resistance,water stability,agingperformance,fatigue performance and viscoelasticity of mixture were investigated.The results show that the RPAF can be used as a new modifier for preparing modified asphaltand asphalt mixture.Compared to matrix asphalt mixture,the optimum asphalt aggregate ratio ofRPAF mixture increases slightly with RPAF content.When the RPAF content gradually increasesfrom 0% to 30%,the high-temperature stability of mixture continues to improve.The waterdamage resistance performance,low-temperature performance,aging resistance and durabilityperformance of mixture all increase first and then decrease.The temperature sensitivity of mixture was affected by the RPAF content.3 tabs,11 figs,21 refs.

关 键 词：道路工程 废弃油毡 改性沥青混合料 路用性能 耐久性 动态模量 

分 类 号：U414[交通运输工程—道路与铁道工程]