UV aging behavior evolution characterization of HALS-modified asphalt based on micro-morphological features
To clarify the effect of Hindered amine light stabilizer (HALS) on ultraviolet (UV) aging behavior of asphalt binder, the evolution history and characteristics of the UV induced micro-structure of modified asphalt were characterized. Scanning Electron Microscope (SEM) and Atomic Force Microscope (AF...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2023-09-01
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| Series: | Reviews on Advanced Materials Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/rams-2023-0109 |
| _version_ | 1797674816560431104 |
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| author | Sun Xiaolong Zhu Yunchu Mao Jie Qin Xiao Li Lijuan Jin Jiao Yu Huayang |
| author_facet | Sun Xiaolong Zhu Yunchu Mao Jie Qin Xiao Li Lijuan Jin Jiao Yu Huayang |
| author_sort | Sun Xiaolong |
| collection | DOAJ |
| description | To clarify the effect of Hindered amine light stabilizer (HALS) on ultraviolet (UV) aging behavior of asphalt binder, the evolution history and characteristics of the UV induced micro-structure of modified asphalt were characterized. Scanning Electron Microscope (SEM) and Atomic Force Microscope (AFM) were used to analyze the microscopic morphology evolution of light stabilizer-modified asphalt during UV aging. By defining the micro-structure of asphalt in aging joints induced by UV, the identification and classification of typical micro-structure are proposed. On this basis, an evaluation method based on the morphology evolution process of modified asphalt aging was proposed to quantitatively analyze the effect of HALS on the UV aging of asphalt binder. The results show that the control effect of HALS on the UV aging behavior of asphalt can be verified by SEM and AFM detection methods. At the same time, the aging interval of the asphalt modified by hindered amine was divided by the method, and it was verified that the HALS could significantly prolong the service life of the asphalt binder. The micro-morphology of asphalt binder undergoes the process of crack generation and propagation during UV aging. The micro-morphological changes of UV aged asphalt were interfered effectively by HALS, which could alleviate and control the development of UV induced micro-cracks, and promote the fusion of micro-cracks. This study provides an effective evaluation method for detecting UV aging microscopic evolution of HALS. |
| first_indexed | 2024-03-11T22:05:33Z |
| format | Article |
| id | doaj.art-1635ae10a1064baa818a35edc0ddf9dc |
| institution | Directory Open Access Journal |
| issn | 1605-8127 |
| language | English |
| last_indexed | 2024-03-11T22:05:33Z |
| publishDate | 2023-09-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Reviews on Advanced Materials Science |
| spelling | doaj.art-1635ae10a1064baa818a35edc0ddf9dc2023-09-25T06:06:36ZengDe GruyterReviews on Advanced Materials Science1605-81272023-09-01621pp. 9910510.1515/rams-2023-0109UV aging behavior evolution characterization of HALS-modified asphalt based on micro-morphological featuresSun Xiaolong0Zhu Yunchu1Mao Jie2Qin Xiao3Li Lijuan4Jin Jiao5Yu Huayang6School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, ChinaSchool of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, ChinaGuangdong Guan Yue Highway & Bridge Co., Ltd, Guangzhou, 511450, ChinaSchool of Transportation and Civil Engineering and Architecture, Foshan University, Foshan528000, ChinaSchool of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006, ChinaNational Engineering Research Center of Highway Maintenance Technology, Changsha University of Science & Technology, Changsha, 410114, Hunan, ChinaSchool of Civil Engineering and Transportation, South China University of Technology, Guangzhou, 510641, ChinaTo clarify the effect of Hindered amine light stabilizer (HALS) on ultraviolet (UV) aging behavior of asphalt binder, the evolution history and characteristics of the UV induced micro-structure of modified asphalt were characterized. Scanning Electron Microscope (SEM) and Atomic Force Microscope (AFM) were used to analyze the microscopic morphology evolution of light stabilizer-modified asphalt during UV aging. By defining the micro-structure of asphalt in aging joints induced by UV, the identification and classification of typical micro-structure are proposed. On this basis, an evaluation method based on the morphology evolution process of modified asphalt aging was proposed to quantitatively analyze the effect of HALS on the UV aging of asphalt binder. The results show that the control effect of HALS on the UV aging behavior of asphalt can be verified by SEM and AFM detection methods. At the same time, the aging interval of the asphalt modified by hindered amine was divided by the method, and it was verified that the HALS could significantly prolong the service life of the asphalt binder. The micro-morphology of asphalt binder undergoes the process of crack generation and propagation during UV aging. The micro-morphological changes of UV aged asphalt were interfered effectively by HALS, which could alleviate and control the development of UV induced micro-cracks, and promote the fusion of micro-cracks. This study provides an effective evaluation method for detecting UV aging microscopic evolution of HALS.https://doi.org/10.1515/rams-2023-0109uv agingquantitative characterizationhindered amine light stabilizer |
| spellingShingle | Sun Xiaolong Zhu Yunchu Mao Jie Qin Xiao Li Lijuan Jin Jiao Yu Huayang UV aging behavior evolution characterization of HALS-modified asphalt based on micro-morphological features Reviews on Advanced Materials Science uv aging quantitative characterization hindered amine light stabilizer |
| title | UV aging behavior evolution characterization of HALS-modified asphalt based on micro-morphological features |
| title_full | UV aging behavior evolution characterization of HALS-modified asphalt based on micro-morphological features |
| title_fullStr | UV aging behavior evolution characterization of HALS-modified asphalt based on micro-morphological features |
| title_full_unstemmed | UV aging behavior evolution characterization of HALS-modified asphalt based on micro-morphological features |
| title_short | UV aging behavior evolution characterization of HALS-modified asphalt based on micro-morphological features |
| title_sort | uv aging behavior evolution characterization of hals modified asphalt based on micro morphological features |
| topic | uv aging quantitative characterization hindered amine light stabilizer |
| url | https://doi.org/10.1515/rams-2023-0109 |
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