Adhesion of Aged SBS Modified Asphalt Binder Containing Warm Mix Additive Based on Surface Free Energy

被引：0
|
作者：
Li H. [1 ,2 ]
Li B. [1 ,3 ]
Wang Q. [1 ,2 ]
Li L. [1 ,2 ]
Wang Y. [1 ,2 ]
机构：
[1] Key Laboratory of Road & Bridge and Underground Engineering of Gansu Province, Lanzhou Jiaotong University, Lanzhou
[2] National and Provincial Joint Engineering Laboratory of Road & Bridge Disaster Prevention and Control, Lanzhou Jiaotong University, Lanzhou
[3] Key Laboratory of Highway Network Monitoring in Gansu Province, Gansu Hengda Road and Bridge Group Co Ltd, Lanzhou
来源：
Li, Bo (libolzjtu@hotmail.com) | 1600年 / Cailiao Daobaoshe/ Materials Review卷 / 31期
关键词：
Aging; Contact angle; Pavement materials; SBS modified asphalt; Surface free energy;
D O I：
10.11896/j.issn.1005-023X.2017.016.027
中图分类号：
学科分类号：
摘要：
Warm asphalt binders were prepared by adding Sasobit and Evotherm into SBS modified asphalt. The three SBS modified asphalt binders were aged using rotating thin film oven (RTFOT) and pressure aging vessel (PAV). The contact angles between aged SBS modified asphalt containing warm mix additive and distilled water, glycerol and form amide were detected by the sessile drop method. And the effect of short-term aging and long-term aging on contact angle of warm mix SBS modified asphalt containing warm mix additive with water was discussed. The total surface free energy and dispersive component and the polar component of SBS modified asphalt containing warm mix additive based on surface free energy theory. The influence of aging process on surface free energy of SBS modified asphalt containing warm mix additive was investigated. The results show that the contact angle between SBS modified asphalt containing warm mix additive and water is increasing and their hydrophobicity change significantly as they are aged continuously. The total surface free energy and its components will decrease with aging strengthening and decrease obviously at RTFOT aging stage. The polar component of SBS modified asphalt containing Sasobit warm mix additive has increasing trend at long term aging process. © 2017, Materials Review Magazine. All right reserved.
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页码：129 / 133and149
相关论文
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