低噪声高黏韧沥青表层在南京绕城高速公路养护工程中的应用  

Application of Low-noise,High Viscosity and Tough Asphalt Surface in the Maintenance Project of Nanjing Ring Expressway

作　　者：朱宏亮 刘晨东 安丰伟 ZHU Hongliang;LIU Chendong;AN Fengwei

机构地区：[1]南京市公路事业发展中心,江苏南京211112 [2]苏交科集团股份有限公司,江苏南京211112 [3]新型道路材料国家工程研究中心,江苏南京211112

出　　处：《上海公路》2024年第4期22-28,M0003,M0004,共9页Shanghai Highways

基　　金：南京市建设行业科技计划项目2023Ks2365“低噪舒适型沥青路面技术在城镇道路中的应用研究”。

摘　　要：随着我国城市化进程的不断加快,绕城公路交通噪声对周围居民生活的影响不容忽视。现提出低噪声高黏韧沥青表层,不但可以降低噪声污染,而且能够平衡其与面层耐久性之间的矛盾。以常规SMA-13沥青混合料为设计基础,采用改制的SBS改性沥青掺加降噪剂设计的低噪声高黏韧沥青SMA-13混合料来满足设计要求,其各项性能指标优异,且具有良好的降噪效果。试验段验证降噪效果显示,60 km/h、80 km/h、100 km/h时速下,车内噪声相比常规SMA-13,分别减小了1.8 dB、2.1 dB和3.2 dB。该研究成果可为穿城高速公路降噪提供参考。As urbanization in China rapidly progresses,the impact of traffic noise from ring roads on the lives of surrounding residents is significant.To address this,a low-noise,high-viscosity,and tough asphalt surface layer has been proposed.This not only reduces noise pollution but also resolves the conflict between noise reduction and surface durability.Designed based on the conventional SMA-13 asphalt mix,this innovative mixture utilizes modified SBS asphalt mixed with noise-reducing agents to meet stringent design criteria.Its various performance indicators are excellent and it has good noise reduction effect.Validation in a test section revealed that at speeds of 60 km/h,80 km/h,and 100 km/h,vehicle interior noise decreased by 1.8 d B,2.1 d B,and 3.2 d B,respectively,compared to conventional SMA-13.This study provides a valuable reference for noise reduction on urban expressways.

关 键 词：低噪声 高黏韧沥青表层 路用性能评价 养护工程应用 

分 类 号：U418.6[交通运输工程—道路与铁道工程]