改性沥青施工温度研究进展  

Research Progress on Construction Temperature of Modified Asphalt

作　　者：毕飞 樊亮 周圣杰 姜峰 BI Fei;FAN Liang;ZHOU Sheng-jie;JIANG Feng(Shandong Transportation Institute,Jinan 250102,Shandong,China)

机构地区：[1]山东省交通科学研究院,山东济南250102

出　　处：《合成材料老化与应用》2020年第5期164-167,共4页Synthetic Materials Aging and Application

摘　　要：沥青作为道路工程中应用最为广泛的道路结构材料,科研工作者对于改性沥青的施工温度进行了大量研究和报道。该文综述了改性沥青施工温度确定方法在近几年的发展情况。分析认为:由于改性沥青性能不同于基质沥青,对改性沥青混合料而言,目前存在的几种方法(包括普通粘温曲线法、稳态剪切粘度法、流动活化能法、零剪切粘度法以及相位角法等)均有不足之处。因此,需要设计一种贴合沥青混合料施工中剪切状态,同时要避免沥青粘度的剪切敏感性的新型施工温度确定方法。Asphalt is the most widely used road structure material in road engineering.Researchers have done a lot of research and reports on the construction temperature of modified asphalt.This paper summarizes the development of the method of determining the construction temperature of modified asphalt in recent years.The analysis shows that because the performance of modified asphalt is different from that of matrix asphalt,for modified asphalt mixture,several existing methods(including ordinary viscosity-temperature curve method,steady-state shear viscosity method,flow activation energy method,zero shear viscosity method and phase angle method,etc.)have shortcomings.Therefore,it is necessary to design a new construction temperature determination method which fits the shear state of asphalt mixture in construction and avoids the shear sensitivity of asphalt viscosity.

关 键 词：改性沥青 施工温度 粘温曲线 零剪切粘度 

分 类 号：U414[交通运输工程—道路与铁道工程]