基于LT-HVA高黏改性沥青的超薄磨耗层性能研究  

Study on the Performance of Ultra-Thin Wearing Course Based on LT-HVA High-Viscosity Modified Asphalt

作　　者：袁万山 YUAN Wan-shan(Heze Highways Administration&Development Center,Heze 274000,China)

机构地区：[1]菏泽市公路事业发展中心,山东菏泽274000

出　　处：《工程建设与设计》2024年第4期84-86,共3页Construction & Design for Engineering

摘　　要：为了探索LT-HVA高黏改性沥青超薄磨耗层的路用性能,以LT-HVA高黏沥青改性剂为原材料,同时引入TPS高黏沥青改性剂为对比项,对于超薄磨耗层用高黏沥青的性能展开试验研究,分析了其内聚力与黏聚力,并对高黏沥青超薄磨耗层的抗滑性能及排水性能进行了试验研究。研究结果表明:LT-HVA高黏改性沥青和TPS高黏改性沥青均具有出色的常规技术性能;TPS高黏改性沥青的最大应力峰值略高,且在拉伸过程中的强度损失率较小,但是优势并不明显;LT-HVA高黏改性沥青拥有更大的接触角,黏聚力更大;LT-HVA高黏改性沥青超薄磨耗层沥青混合料与TPS高黏改性沥青超薄磨耗层沥青混合料具有相似的抗滑与排水性能。In order to explore the pavement performance of LT-HVA high-viscosity modified asphalt ultra-thin wearing course,this paper takes LT-HVA high-viscosity asphalt modifier as the raw material,and at the same time,TPS high-viscosity asphalt modifier is introduced as a comparison.The experimental research on the performance of high-viscosity asphalt used in ultra-thin wearing course was conducted,the cohesion was analyzed,and the empirical research on the anti-sliding performance and drainage performance of high-viscosity asphalt ultra-thin wearing course was conducted.The results show that both LT-HVA high-viscosity modified asphalt and TPS high-viscosity modified asphalt have excellent conventional technical properties.The maximum stress peak of TPS high viscosity modified asphalt is slightly higher,and the strength loss rate in the tensile process is low,but the advantage is not apparent;LT-HVA high-viscosity modified asphalt has a larger contact angle and greater cohesion;LT-HVA high-viscosity modified asphalt ultra-thin wearing course asphalt mixture and TPS high-viscosity modified asphalt ultra-thin wearing course asphalt mixture have similar skid resistance and drainage performance.

关 键 词：LT-HVA TPS 高黏沥青 超薄磨耗层 路用性能 

分 类 号：U414[交通运输工程—道路与铁道工程]