Effect of organo-montmorillonite on the morphology and aging properties of various bitumens

被引：0

作者：

Bin Li

Henglong Zhang

Jianying Yu

机构：

[1] Wuhan University of Technology,Key Laboratory for Silicate Material and Engineering of Ministry of Education

[2] Highway Bureau of Inner Mongolia Autonomous Region,undefined

来源：

Journal of Wuhan University of Technology-Mater. Sci. Ed. | 2010年 / 25卷

关键词：

bitumen; organo-montmorillonite; atomic force microscopy; aging;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Effect of organo-montmorillonite (OMMT) on the morphology and aging properties of various bitumens was studied. The morphology of the binders was characterized by atomic force microscopy (AFM). The influence of OMMT on physical properties of the binders before and after long-term aging and ultraviolet (UV) aging was investigated. It was observed that the effect of OMMT on the morphology and aging properties of bitumens depended on the base bitumen. In one case, OMMT affected the dispersed phase in bitumen. In the other case, OMMT affected the bitumen matrix. In both cases, OMMT caused stiffening of the modified phase. Compared with modification of the dispersed phase, modification of the matrix phase showed an obvious improvement on the physical properties as well as the better UV aging properties of bitumens, which was opposite to the long-term aging result.

引用

页码：650 / 655

页数：5

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