合成材料老化与应用2025，Vol.54Issue(3)：18-21,4.
不同SBS结构和嵌段比对沥青性能的影响
Effects of Different SBS Structure and Block Ratio on Asphalt Properties
孙傲 1张海涛1
作者信息
- 1. 东北林业大学土木与交通学院,黑龙江 哈尔滨 150040
- 折叠
摘要
Abstract
In asphalt modification,styrene-butadiene-styrene(SBS)copolymer is widely used.However,the impact of SBS's structural features and block ratios on asphalt performance is often overlooked.This study evaluated the properties of SBS-modified asphalt with varying structures and block ratios.Dynamic shear rheology(DSR)tests revealed that styrene(PS)blocks significantly improve asphalt's high-temperature stability,with star-shaped SBS demonstrating superior performance in high-temperature environments.Low-temperature bending beam rheology(BBR)tests indicated that butadiene(PB)blocks enhance asphalt's low-temperature properties,and linear SBS effectively boosts its resistance to low-temperature cracking.Contact angle measurements suggested that star-shaped SBS with higher styrene content improves asphalt-aggregate adhesion.Fluorescence microscopy further confirmed that linear SBS with lower styrene content exhibits better compatibility with asphalt.关键词
SBS/沥青/高低温性能/黏附性能/相容性Key words
SBS/asphalt/high and low temperature performance/adhesion property/compatibility分类
交通运输引用本文复制引用
孙傲,张海涛..不同SBS结构和嵌段比对沥青性能的影响[J].合成材料老化与应用,2025,54(3):18-21,4.
