摘要
透水性沥青路面是海绵城市特有的路面结构形式,高黏沥青作为该路面结构保持稳定路用性能的核心材料,其高温性能至关重要。将3种不同类型的高黏剂分别掺配70号基质沥青和SBS改性沥青,并进行动力黏度试验和动态剪切流变试验,探究高黏剂对沥青高温性能的影响。结果表明:当其他条件相同时,高黏剂含量越高,高黏沥青的抗高温流变性越强;当使用不同沥青种类进行复配时,高黏剂的种类和含量对高黏沥青高温流变性的影响有所差异,相比于LY-TPS,TAIYOU-TPS需要更高的含量提升高黏沥青黏度。
The permeable asphalt pavement is a special type of pavement structure in sponge city,and as the core material of this type of permeable asphalt pavement,the high temperature performance of high viscosity asphalt is very important.In this paper,three different high viscosity additives were added into the control asphalt and SBS modified asphalt,and dynamic viscosity and dynamic shear rheology test were conducted to explore the influence of high viscosity additives on the high temperature properties of asphalt.The results showed that when different kinds of asphalt are used for blending,the effect of the type and content of high viscosity additive on the rheology property of the high viscosity asphalt under high temperature was inconsistent,compared with LY-TPS,TAIYOU-TPS needs higher content to improve the viscosity of high viscosity asphalt.
作者
骆明金
LUO Mingjin(Kunshan Transportation Engineering Group Co.,Ltd.,Suzhou 215300,China)
出处
《现代交通技术》
2021年第3期18-22,共5页
Modern Transportation Technology
关键词
高黏剂
沥青
动力黏度
高温性能
车辙因子
high viscosity additive
asphalt
dynamic viscosity
high temperature performance
rutting factor
