Fatigue characterization of bio-modified asphalt binders under various laboratory aging conditions

被引：69

作者：

Cao, Wei ^{[1
]}

Wang, Yang ^{[2
]}

Wang, Chao ^{[2
]}

机构：

[1] Louisiana State Univ, Louisiana Transportat Res Ctr, Dept Civil & Environm Engn, 4101 Gourrier Ave, Baton Rouge, LA 70808 USA

[2] Beijing Univ Technol, Dept Rd & Railway Engn, Beijing 100124, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2019年 / 208卷

基金：

中国国家自然科学基金; 北京市自然科学基金;

关键词：

Bio-binder; Fatigue performance; Linear amplitude sweep; Viscoelastic continuum damage; Aging; WASTE COOKING OIL; WARM-MIX TECHNOLOGIES; RHEOLOGICAL PROPERTIES; PARTIAL REPLACEMENT; PERFORMANCE; RAP;

D O I：

10.1016/j.conbuildmat.2019.03.069

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This study was aimed to evaluate the fatigue characteristics of asphalt binders modified with different dosages of bio-oil under a variety of aging conditions. The frequency sweep test was performed to determine four rheological parameters indicative of cracking resistance. The linear amplitude sweep (LAS) test was conducted to yield damage characteristic relationship, failure criterion, and failure envelope based on the viscoelastic continuum damage theory. In general, consistent observations were obtained between the rheological parameters and the LAS-based fatigue analysis, in that higher percentages of bio-oil in modification provided improved resistance to cracking, while higher aging intensities produced lower fatigue performance. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页码：686 / 696

页数：11

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