Effects of UV Aging on Physical Properties and Physicochemical Properties of ASA Polymer-Modified Asphalt
The purpose of this study was to characterize and evaluate the effects of UV radiation on the rheological and physicochemical properties of ASA polymer-modified asphalt. The conventional properties (penetration, softening point, ductility, and Brookfield viscosity) of ASA polymer-modified asphalt we...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/1157687 |
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| _version_ | 1832558347983781888 |
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| author | Xiaolong Sun Qinyuan Peng Yongqiang Zhu Qian Chen Junshen Yuan Yunchu Zhu |
| author_facet | Xiaolong Sun Qinyuan Peng Yongqiang Zhu Qian Chen Junshen Yuan Yunchu Zhu |
| author_sort | Xiaolong Sun |
| collection | DOAJ |
| description | The purpose of this study was to characterize and evaluate the effects of UV radiation on the rheological and physicochemical properties of ASA polymer-modified asphalt. The conventional properties (penetration, softening point, ductility, and Brookfield viscosity) of ASA polymer-modified asphalt were tested. Based on rheology, the effect of different UV irradiation times on the high-temperature performance of ASA polymer-modified asphalt was systematically characterized, the thermogravimetric analyzer (TGA) was used to analyze thermogravimetric properties of ASA polymer-modified asphalt, and the micromorphological characteristics of ASA-modified asphalt under different UV irradiation times were characterized by scanning electron microscope (FIB-SEM). The results show that the ASA polymer has a significant effect on the basic properties of asphalt. Compared with the base asphalt, the high-temperature stability of the modified asphalt was decreased, and the low-temperature ductility performance was improved. ASA polymer can effectively reduce the aging effect of ultraviolet radiation on the base asphalt and inhibit the generation of microcracks. ASA polymers improve the thermal stability of asphalt binders. During the aging process, the formation of carbonyl and sulfoxide groups was inhibited, indicating that ASA polymer can effectively delay the UV aging of asphalt. |
| format | Article |
| id | doaj-art-d83ea5b27db24bbdbfb260be72aa79db |
| institution | Kabale University |
| issn | 1687-8442 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-d83ea5b27db24bbdbfb260be72aa79db2025-02-03T01:32:36ZengWileyAdvances in Materials Science and Engineering1687-84422022-01-01202210.1155/2022/1157687Effects of UV Aging on Physical Properties and Physicochemical Properties of ASA Polymer-Modified AsphaltXiaolong Sun0Qinyuan Peng1Yongqiang Zhu2Qian Chen3Junshen Yuan4Yunchu Zhu5School of Civil and Transportation EngineeringSchool of Civil and Transportation EngineeringGuangdong GuanYue Highway & Bridge Co. Ltd.Key Laboratory for Special Area Highway Engineering of Ministry of EducationSchool of Civil and Transportation EngineeringSchool of Civil and Transportation EngineeringThe purpose of this study was to characterize and evaluate the effects of UV radiation on the rheological and physicochemical properties of ASA polymer-modified asphalt. The conventional properties (penetration, softening point, ductility, and Brookfield viscosity) of ASA polymer-modified asphalt were tested. Based on rheology, the effect of different UV irradiation times on the high-temperature performance of ASA polymer-modified asphalt was systematically characterized, the thermogravimetric analyzer (TGA) was used to analyze thermogravimetric properties of ASA polymer-modified asphalt, and the micromorphological characteristics of ASA-modified asphalt under different UV irradiation times were characterized by scanning electron microscope (FIB-SEM). The results show that the ASA polymer has a significant effect on the basic properties of asphalt. Compared with the base asphalt, the high-temperature stability of the modified asphalt was decreased, and the low-temperature ductility performance was improved. ASA polymer can effectively reduce the aging effect of ultraviolet radiation on the base asphalt and inhibit the generation of microcracks. ASA polymers improve the thermal stability of asphalt binders. During the aging process, the formation of carbonyl and sulfoxide groups was inhibited, indicating that ASA polymer can effectively delay the UV aging of asphalt.http://dx.doi.org/10.1155/2022/1157687 |
| spellingShingle | Xiaolong Sun Qinyuan Peng Yongqiang Zhu Qian Chen Junshen Yuan Yunchu Zhu Effects of UV Aging on Physical Properties and Physicochemical Properties of ASA Polymer-Modified Asphalt Advances in Materials Science and Engineering |
| title | Effects of UV Aging on Physical Properties and Physicochemical Properties of ASA Polymer-Modified Asphalt |
| title_full | Effects of UV Aging on Physical Properties and Physicochemical Properties of ASA Polymer-Modified Asphalt |
| title_fullStr | Effects of UV Aging on Physical Properties and Physicochemical Properties of ASA Polymer-Modified Asphalt |
| title_full_unstemmed | Effects of UV Aging on Physical Properties and Physicochemical Properties of ASA Polymer-Modified Asphalt |
| title_short | Effects of UV Aging on Physical Properties and Physicochemical Properties of ASA Polymer-Modified Asphalt |
| title_sort | effects of uv aging on physical properties and physicochemical properties of asa polymer modified asphalt |
| url | http://dx.doi.org/10.1155/2022/1157687 |
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