Analysis of Micromechanical Properties at the Interface of Pre-wet SBS Modified Asphalt Mixture Based on Molecular Simulation Technology

被引：0

作者：

陈伍兴 ^{[1
]}

CHEN Shuang ^{[2
]}

YU Yan ^{[1
]}

ZHANG Jiangyi ^{[1
]}

XU Haiyang ^{[1
]}

郭威 ^{[1
]}

机构：

[1] School of Mines, China University of Mining and Technology

[2] College of Construction Engineering, Jilin

来源：

Journal of Wuhan University of Technology(Materials Science) | 2025年 / 40卷 / 01期

关键词：

D O I：

暂无

中图分类号：

U414 [道路建筑材料];

学科分类号：

0805 ;

摘要：

The pre-wetting of aggregate surface is a means to improve the interface performance of SBS modified asphalt and aggregate.The effect of pre-wetting technology on the interaction between SBS modified asphalt and aggregate was analyzed by molecular dynamics simulation.The diffusion coefficient and concentration distribution of SBS modified asphalt on aggregate surface are included.The simulation results show that the diffusion coefficient of the aggregate surface of SBS modified asphalt is increased by 47.6% and 70.5% respectively after 110# asphalt and 130# asphalt are pre-wetted.The concentration distribution of SBS modified asphalt on the aggregate surface after pre-wetting is more uniform.According to the results of interface energy calculation,the interface energy of SBS modified bitumen and aggregate can be increased by about 5% after pre-wetting.According to the results of molecular dynamics simulation,the pre-wetting technology can effectively improve the interface workability of SBS modified bitumen and aggregate,so as to improve the interface performance.

引用

页码：103 / 113

页数：11

共 33 条

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