Rheological properties and modification mechanism of RET compound rubber modified asphalt

被引：0

作者：

Chang R. ^{[1
]}

Hao P. ^{[1
]}

机构：

[1] Key Laboratory for Road Structure and Materials of Ministry of Transport, Chang'an University, Xi'an

来源：

Cailiao Daobao/Materials Review | 2016年 / 30卷 / 12期

关键词：

Modified asphalt; Modified mechanism; RET; Rheological properties; Road engineering; Rubber;

D O I：

10.11896/j.issn.1005-023X.2016.24.025

中图分类号：

学科分类号：

摘要：

The rheological behavior of rubber, RET and RET compound rubber modified asphalt were comprehensively studied by DSR, RCRT and BBR under different temperatures, taking SBS and SBR modified asphalt as contrasts. Moreover, the modification mechanism of RET compound rubber modified asphalt and SBS, SBR modified asphalt was analyzed by DSC test. The results showed that RET compound rubber could significantly improve the high temperature anti-deforming capability of asphalt compared with SBS and SBR modified asphalt. SBS could greatly improve the elastic recovery of asphalt, but RET compound rubber could significantly increase the viscosity of asphalt. The low temperature properties of RET modified asphalt had an obvious improvement by adding rubber. RET compound rubber could reduce the heat flow rate of the matrix asphalt, and it has a low glass transition temperature and relatively good thermal stability compared with SBS and SBR modified asphalt. © 2016, Materials Review Magazine. All right reserved.

引用

页码：130 / 136

页数：6

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