Microstructures and Thermal Aging Properties of Layered Silicate Modified Bitumens
Microstructures and Thermal Aging Properties of Layered Silicate Modified Bitumens
复制标题
层状硅酸盐改性沥青的微观结构和热老化性能
DOI:
10.1080/10916466.2013.811252
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发表时间:
2014-05
影响因子:
1.5
通讯作者:
Kenzhen Yan
中科院分区:
文献类型:
--
作者:
Henglong Zhang;Bangyao Tan;Hongbin Xu;Kenzhen Yan
The influence of the layered silicate (LS) nature and its organic modification on microstructures and thermal aging properties of bitumen was evaluated. The results show that montmorillonite and expended vermiculite modified bitumens form the phase-separated structure, while the rectorite modified bitumen forms the intercalated nanostructure. After organic modification, montmorillonite and rectorite modified bitumens show the intercalated nanostructure, while the expended vermiculite modified bitumen shows the exfoliated nanostructure. The thermal aging properties of the binders mainly depend on the nature of LS (mainly its specific surface area), with no significant influence of the nanostructure formed in the modified bitumens.
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