市政技术2025，Vol.43Issue(5)：261-271,295,12.DOI:10.19922/j.1009-7767.2025.05.261
粉胶比对乳化沥青胶浆流变性能影响规律研究
Study on the Influence of Filler-Bitumen Ratio on the Rheological Properties of Emulsified Asphalt Mortar
李田义1
作者信息
- 1. 国大宏泰(北京)建设工程有限公司,北京 102300
- 折叠
摘要
Abstract
The rheological properties of ordinary emulsified asphalt slurry and SBS modified emulsified asphalt slurry at different filler-bitumen ratios were systematically analyzed through rheological tests at 60 ℃,Multiple Stress Creep and Recovery(MSCR)tests,Linear Amplitude Sweep(LAS)tests,and Bending Beam Rheometer(BBR)tests.The research results show that the complex shear modulus and rutting factor of the two emulsified asphalt emulsions significantly increase with the increase of the filler-bitumen ratio,indicating that their deformation resistance and high-temperature stability are enhanced.SBS modified emulsified asphalt slurry has a stronger correlation with changes of filler-bitumen ratio and has more advantage in elastic recovery performance and yield stress than ordi-nary emulsified asphalt slurry.In addition,the BBR test results showed that as the powder to binder ratio increased,the emulsified asphalt slurry system became increasingly hard and brittle,and its flexibility decreased.This was manifested by a decrease in the allowable deformation capacity and stress release speed,resulting in a decrease in the material's relaxation ability and low-temperature crack resistance.This study confirms that the performance of emulsified asphalt emulsion can be effectively optimized by adjusting the filler to bitumen ratio reasonably,provid-ing scientific basis for material selection and application in road engineering.关键词
粉胶比/乳化沥青胶浆/流变性能Key words
filler-bitumen ratio/emulsified asphalt mortar/rheological properties分类
建筑与水利引用本文复制引用
李田义..粉胶比对乳化沥青胶浆流变性能影响规律研究[J].市政技术,2025,43(5):261-271,295,12.
