Fatigue Properties of Layered Double Hydroxides Modified Asphalt and Its Mixture

被引：15

作者：

Liu, Xing ^{[1
]}

Wu, Shaopeng ^{[1
]}

Pang, Ling ^{[1
]}

Xiao, Yue ^{[1
]}

Pan, Pan ^{[1
]}

机构：

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

来源：

ADVANCES IN MATERIALS SCIENCE AND ENGINEERING | 2014年 / 2014卷

基金：

中国国家自然科学基金;

关键词：

BITUMEN;

D O I：

10.1155/2014/868404

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study investigated the influence of layered double hydroxides (LDHs) on the fatigue properties of asphalt mixture. In this paper, different aging levels (thin film oven test (TFOT) and ultraviolet radiation aging (UV aging for short)) of bitumen modified with various mass ratios of the LDHs were investigated. The TFOT and UV aging process were used to simulate short-term field thermal-oxidative aging and long-term field light UV aging of bitumen, respectively. The influences of LDHs on the fatigue properties of LDHs were evaluated by dynamic shear rheometer (DSR) and indirect tensile fatigue test. Results indicated that the introduction of LDHs could change the fatigue properties of bitumen under a stress control mode. The mixture with modified bitumen showed better fatigue resistance than the mixture with base bitumen. The results illustrated that the LDHs would be alternative modifiers used in the bitumen to improve the lifetime of asphalt pavements.

引用

页数：6

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