市政技术2024，Vol.42Issue(12)：94-100,7.DOI:10.19922/j.1009-7767.2024.12.094
温拌剂对高黏沥青物理性质及流变行为的影响机制研究
Study on the Impacts Mechanism of Warm-mix Agent on Physical Properties and Rheological Behavior of High Viscosity Asphalt
摘要
Abstract
In order to investigate the effects of different warm-mix agent on the performance of high viscosity asphalt(HVA),three commonly used warm-mix agents of the organic viscosity reducer Sasobit,the surfactant Evotherm,and the diluent viscosity reducer of waste cooking oil(WCO)were selected to prepare corresponding warm-mix HVA,and comparatively analyze the physical properties,viscosity and rheological characteristics.The results indicate that Sasobit and WCO significantly reduce the rotational viscosity of HVA,whereas the viscosity-reducing effect of Evotherm is relatively weaker.The addition of Sasobit hardens the asphalt(penetration decreased and complex mod-ulus increased),improves the fatigue resistance and high temperature performance of HVA,but adversely affects low temperature performance;WCO negatively impacts high temperature performance by reducing the maximum shear stress,but notably enhances low temperature crack resistance;Evotherm has lower impact on the high and low temperature properties of HVA.关键词
高黏沥青/温拌剂/低温性能/高温性能/黏度Key words
high viscosity asphalt(HVA)/warm-mix agent/low temperature performance/high temperature per-formance/viscosity分类
交通工程引用本文复制引用
赖明信..温拌剂对高黏沥青物理性质及流变行为的影响机制研究[J].市政技术,2024,42(12):94-100,7.基金项目
四川省交通运输科技项目(2024-ZL-08) （2024-ZL-08）
