Investigation of Ageing in Bitumen Using Fluorescence Spectrum

被引：7
作者：
Tang, Ning [1 ]
Yang, Yu-Li [1 ]
Yu, Mei-Ling [1 ]
Wang, Wen-Li [1 ]
Cao, Shi-Yue [1 ]
Wang, Qing [1 ]
Pan, Wen-Hao [1 ,2 ]
机构：
[1] Shenyang Jianzhu Univ, Sch Mat Sci & Engn, Shenyang 110168, Liaoning, Peoples R China
[2] Northeast Univ, Sch Mat Sci & Engn, Shenyang 110918, Liaoning, Peoples R China
来源：
MATERIALS | 2018年 / 11卷 / 08期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
fluorescence spectrum; bitumen; ageing; parametrization; blue-shift; WASTE COOKING OIL; RHEOLOGICAL PROPERTIES; ULTRAVIOLET-RADIATION; CHEMISTRY; BEHAVIOR; FTIR;
D O I：
10.3390/ma11081325
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Bitumen ageing is a very complex process and poses a threat to the performance of pavements. In the present work, a fluorescence spectrophotometer was employed to research the change rule of components and the structure of bitumen after the ageing process. The Thin Film Oven Test (TFOT) and Ultraviolet (UV) light treatment were carried out as ageing methods. The properties and components of bitumen were tested before and after aging. The 2D and 3D fluorescence spectra of bitumen were analyzed. The vector of fluorescence peak was calculated for evaluating the ageing process. The results indicated that the ideal concentration of bitumen-tetrachloromethane solution was 0.1 g/L or smaller for avoiding the fluorescence quenching. The coordinates of fluorescent peak appeared "blue-shift" after ageing due to the change of aromatics. In addition, bitumen has already occurred serious ageing when the magnitude of a vector is more than 36.
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页数：11
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