市政技术2024，Vol.42Issue(4)：4-10,7.DOI:10.19922/j.1009-7767.2024.04.004
高分子聚合物高黏改性乳化沥青的制备与性能研究
Preparation and Properties of Polymer High Viscosity Modified Emulsified Asphalt
摘要
Abstract
Polymer modified emulsified asphalt A(Dynamic viscosity＜20 000 Pa·s)and high viscosity polymer modified emulsified asphalt(Dynamic viscosity＞20 000 Pa·s)were prepared by different mass proportions of poly-mer resins.The needle penetration,ductility,softening point and dynamic viscosity of the evaporated residue were analyzed by experiments.The interlayer shear and direct pullout tests were conducted by the homemade modified emulsified asphalt B and matrix emulsified asphalt to evaluate the adhesion properties and shear strength of the highly viscous modified emulsified asphalt.The results show that the physical qualities of the polymer high viscosity emulsifiied asphalt modified were superior to the ones of the polymer emulsified asphalt modified;The 3 indexes of softening point,penetration and ductility of the above 3 types of emulsified asphalt were lower than the ones of prior emulsification,which all decreased in various degrees.From the aspects of shear and adhesion,polymer high vis-cosity modified emulsified asphalt is significantly higher than other types of emulsified asphalt,but suffers lower storage stability than polymer modified emulsified asphalt.关键词
高分子聚合物高黏改性乳化沥青/蒸发残留物/层间剪切/储存稳定性Key words
polymer high viscosity modified emulsified asphalt/evaporation residues/interlayer shear/storage stability分类
交通运输引用本文复制引用
李俊,李元元,周少云,白桃,欧阳优,杨晔..高分子聚合物高黏改性乳化沥青的制备与性能研究[J].市政技术,2024,42(4):4-10,7.基金项目
湖北省交通运输厅科技项目(2022-11-1-10) （2022-11-1-10）
武汉工程大学第十四届研究生教育创新基金项目(CX2022180) （CX2022180）
