Rheological properties for aged bitumen containing ultraviolate light resistant materials

被引：86

作者：

Wu, Shaopeng ^{[1
]}

Han, Jun ^{[1
]}

Pang, Ling ^{[1
,2
]}

Yu, Man ^{[1
]}

Wang, Teng ^{[1
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Peoples R China

[2] Wuhan Univ Technol, Sch Sci, Wuhan 430070, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2012年 / 33卷

关键词：

Bitumen; Rheological properties; Ultraviolet radiation aging; LDHS; LAYERED DOUBLE HYDROXIDES; ASPHALT;

D O I：

10.1016/j.conbuildmat.2012.01.019

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Aging, which occurs in asphalt roadway pavements during construction and service life, can affect the rheological properties of bitumen. Different aging levels (TFOT and ultraviolate aging (UV aging for short) for 6 days) of bitumen with various mass ratios of the ultraviolate light resistant materials to bitumen were considered to investigate in this paper. LDHS were used as the ultraviolate light resistant materials. The TFOT tests and UV aging process were used to simulate short-term field thermal-oxidative aging and long-term field light-oxygen aging of bitumen separately. Basic properties test, dynamic shear temperature sweep and frequency sweep tests as well as creep test were conducted in this paper. Dynamic Shear Rheomoter (DSR) was also used to evaluate low temperature properties of bitumen. The results showed that LDHS can improve the UV aging resistance of the bitumen, and the bitumen with more LDHS can present a better low-temperature performance compared to the base bitumen. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：133 / 138

页数：6

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