橡胶粉/芳烃油改性沥青对高速路面的降噪与吸声性能试验  

Study on noise reduction andacoustic absorption performance of rubber powder/aromatic oil modified asphalt onexpresswaypavement

作　　者：马辉 MA Hui(Heze Trading Investment Expressway Co.,Lid.,Heze 274000,Shandong China)

机构地区：[1]菏泽交投高速公路有限公司,山东菏泽274000

出　　处：《粘接》2023年第11期17-21,共5页Adhesion

基　　金：海南省交通科技项目(项目编号:JT20160898009)。

摘　　要：针对传统沥青路面车辆行驶噪音大的问题,提出SBS协同橡胶对基质沥青进行改性。试验以改性沥青综合性能和路用性能为指标,研究了改性沥青在高速公路的实际应用性。结果表明,芳烃油在橡胶沥青体系中起稳定作用,增强SBS与橡胶粉在沥青体系内的相容性,进而提升橡胶沥青的综合性能。橡胶改性沥青最佳配比:6%橡胶粉,2%SBS和7%芳烃油,在此条件下橡胶沥青的综合性能表现良好。将该橡胶改性沥青用于高速公路铺设时,路面平整度标准差平均值约为0.47 mm,测点基本不透水,构造深度约为0.73 mm,较普通沥青路面噪音降低了约5%,表现出良好路用性能。Aiming at the problems of loud driving noise of traditional asphalt pavement,SBS cooperated rubbermodifiedbase asphaltwas proposed.The comprehensive performance of modified asphalt and road performance were taken as the index,and the practical applicability of modified asphalt in highways was studied.The test results showed that aromatic oil playeda stabilizing role in the rubber asphalt system,enhancedthe compatibility of SBS and rubber powder in the asphalt system,and thus improvedthe comprehensive performance of rubber asphalt.The optimal ratio of rubber modified asphalt was 6%rubber powder,2%SBS and 7%aromatic oil,under this condition the comprehensive performance of rubber asphalt was good.When the rubber modified asphalt was used for expressway pavement,the average standard deviation of pavement flatness was about 0.47 mm,the measuring point was basically impermeable,and the construction depth was about 0.73 mm,which reducedthe noise by about 5%compared with ordinary asphalt pavement,showing good road performance.

关 键 词：橡胶改性沥青 降噪性能 路用性能 高速公路沥青路面 

分 类 号：TQ333.99[化学工程—橡胶工业] U414[交通运输工程—道路与铁道工程]