Evaluation of ageing behaviors of asphalt binders using FTIR tests
| العنوان: | Evaluation of ageing behaviors of asphalt binders using FTIR tests |
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| المؤلفون: | Xiaojin Song, Peihan Yu, Wenjing Gao, Chenyang Zhou, Yihua Nie |
| المصدر: | International Journal of Pavement Research and Technology. 14:615-624 |
| بيانات النشر: | Springer Science and Business Media LLC, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Peak area, Thermal oxidation, 050210 logistics & transportation, Materials science, Softening point, 05 social sciences, technology, industry, and agriculture, 0211 other engineering and technologies, 02 engineering and technology, Mechanics of Materials, Asphalt, Ageing, 021105 building & construction, 0502 economics and business, Fourier transform infrared spectroscopy, Composite material, Civil and Structural Engineering |
| الوصف: | The main objective of this study was to evaluate ageing behaviors of matrix and modified asphalt binders using different Fourier transform infrared (FTIR) spectral indices, based on FTIR tests. These FTIR indices include normalized carbonyl (C=O) absorption peak area (A1700), normalized sulfoxide (S=O) absorption peak area (A1030), carbonyl index (CI) and sulfoxide index (SI) based on five different reference groups. The rolling thin film oven test (RTFOT) was applied to simulate thermal oxidation ageing. Then, physical properties tests (softening point, penetration, ductility, and viscosity) and FTIR tests were conducted on the studied asphalt binders (AH-50, AH-70, AH-90 matrix asphalt, and SBS-70 modified asphalt) with different ageing states. Meanwhile, ageing behaviors and their relationship characterized by the physical parameters and FTIR indices were studied and discussed. The results show that the changes with ageing time of FTIR indices and physical parameters are in accordance with ageing kinetics law, and normalized A1700, CI can interpret the ageing behavior as well as physical parameters. Normalized A1700 is easier to obtain and recommended as the optimal ageing evaluation index among FTIR indices. The evaluation results of asphalt anti-ageing ability by selected FTIR indices are consistent, and SBS-70 modified asphalt exhibits the best ageing resistance among all tested technical parameters. |
| تدمد: | 1997-1400 1996-6814 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::e84c4ab2398c0a1956c1504e10879c60 https://doi.org/10.1007/s42947-020-0210-1 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........e84c4ab2398c0a1956c1504e10879c60 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 19971400 19966814 |
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