التفاصيل البيبلوغرافية
| العنوان: |
Performance degradation of styrene-butadiene-styrene modified asphalt binder at ultra-high temperature: Process of construction in fluid mastic asphalt |
| المؤلفون: |
Zeyang Chen, Wenke Huang, Kuanghuai Wu, Guihai Nie, Yuqi Zheng, Jianwen Song, Xu Cai, Jianbo Wu, Jiandong Huang |
| المصدر: |
Case Studies in Construction Materials, Vol 19, Iss , Pp e02490- (2023) |
| بيانات النشر: |
Elsevier, 2023. |
| سنة النشر: |
2023 |
| المجموعة: |
LCC:Materials of engineering and construction. Mechanics of materials |
| مصطلحات موضوعية: |
SBS modified asphalt binder, Ultra-high temperature, Aging of large volume, Performance degradation, Materials of engineering and construction. Mechanics of materials, TA401-492 |
| الوصف: |
Fluid mastic asphalt (FMA) is a skeleton dense hot-mixed asphalt mixture with the internal porosity of less than 1 %, which is formed by mixture fluidity or vibration-assisted slurry extraction. In order to improve the fluidity of SBS modified asphalt binder used in FMA, it should be heated at ultra-high temperature which refers to 200 ℃ and above. The performance degradation of asphalt binder which is heated at ultra-high temperature in the asphalt storage tank cannot be avoided. At present, there are few studies on the performance degradation of SBS modified asphalt binder in the process of construction at ultra-high temperature. This study proposes an aging test method which is aging of large volume (ALV) and then short-term aging in laboratory which aims to replace extraction and recovery from old asphalt mixture. The macro performance of SBS modified asphalt binder are analyzed by penetration, ductility, softening point, dynamic shear rheometer (DSR) and bending beam rheometer (BBR). The microscopic changes of SBS modified asphalt binder are analyzed by Fourier transform infrared spectroscopy (FTIR) and gel permeation chromatography (GPC). The results shows that, taking aging of large volume at 165 ℃ as the standard, the change rate of that before and after short-term aging and mix change between that and other kind of aging of large volume reaches a third and above. The carbonyl group occurs in the infrared spectrum of aging in the form of volume at 225 ℃ but else asphalt binder which undergo aging in the form of volume at other temperature do not. The molecular weight decreases significantly and the distribution range becomes wider. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
2214-5095 |
| Relation: |
http://www.sciencedirect.com/science/article/pii/S2214509523006708; https://doaj.org/toc/2214-5095 |
| DOI: |
10.1016/j.cscm.2023.e02490 |
| URL الوصول: |
https://doaj.org/article/5c9426c07832431a9f18c3ae2a3c3a1f |
| رقم الانضمام: |
edsdoj.5c9426c07832431a9f18c3ae2a3c3a1f |
| قاعدة البيانات: |
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