Evaluation of the Physical and Adhesive Properties of Natural Weathering Asphalt
Asphalt suffers from a series of aging processes in the natural environment. This is a significant factor in asphalt pavement diseases. Research of the properties of the decay processes in the natural weathering of asphalt will be helpful in distinguishing the characteristics of the various types of...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/5783256 |
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| author | Yanzhu Wang Xudong Wang Xingye Zhou Guang Yang Lei Zhang |
| author_facet | Yanzhu Wang Xudong Wang Xingye Zhou Guang Yang Lei Zhang |
| author_sort | Yanzhu Wang |
| collection | DOAJ |
| description | Asphalt suffers from a series of aging processes in the natural environment. This is a significant factor in asphalt pavement diseases. Research of the properties of the decay processes in the natural weathering of asphalt will be helpful in distinguishing the characteristics of the various types of asphalt and in the selection of pavement materials. Neat asphalt A70, a styrene-butadiene-styrene- (SBS-) modified asphalt, and crumb-rubber-modified asphalt AR are exposed to outdoor conditions to weather naturally. This process is traced by testing the basic physical properties and the surface free energy of asphalts, using the sessile drop method. Results illustrate that the basic physical properties of asphalt change significantly during the natural weathering process and that the rubber asphalt has the superior aging resistance, while the neat asphalt A70 has a high aging susceptibility. Furthermore, the presence of the SBS and rubber-powder modifiers transforms the change trend of the surface free energy of neat asphalt. The adhesion work between aggregate and asphalt can be used to quantitatively evaluate the adhesive properties between them. Meanwhile, the presence of moisture between the asphalt and aggregate changes cohesive failure into adhesive failure. |
| format | Article |
| id | doaj-art-b2d76c18d1e6422bb2e99deb03ee09ac |
| institution | OA Journals |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-b2d76c18d1e6422bb2e99deb03ee09ac2025-08-20T02:23:27ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422021-01-01202110.1155/2021/57832565783256Evaluation of the Physical and Adhesive Properties of Natural Weathering AsphaltYanzhu Wang0Xudong Wang1Xingye Zhou2Guang Yang3Lei Zhang4School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, ChinaSchool of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, ChinaResearch Institute of Highway, Ministry of Transport, Beijing 100088, ChinaSchool of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, ChinaResearch Institute of Highway, Ministry of Transport, Beijing 100088, ChinaAsphalt suffers from a series of aging processes in the natural environment. This is a significant factor in asphalt pavement diseases. Research of the properties of the decay processes in the natural weathering of asphalt will be helpful in distinguishing the characteristics of the various types of asphalt and in the selection of pavement materials. Neat asphalt A70, a styrene-butadiene-styrene- (SBS-) modified asphalt, and crumb-rubber-modified asphalt AR are exposed to outdoor conditions to weather naturally. This process is traced by testing the basic physical properties and the surface free energy of asphalts, using the sessile drop method. Results illustrate that the basic physical properties of asphalt change significantly during the natural weathering process and that the rubber asphalt has the superior aging resistance, while the neat asphalt A70 has a high aging susceptibility. Furthermore, the presence of the SBS and rubber-powder modifiers transforms the change trend of the surface free energy of neat asphalt. The adhesion work between aggregate and asphalt can be used to quantitatively evaluate the adhesive properties between them. Meanwhile, the presence of moisture between the asphalt and aggregate changes cohesive failure into adhesive failure.http://dx.doi.org/10.1155/2021/5783256 |
| spellingShingle | Yanzhu Wang Xudong Wang Xingye Zhou Guang Yang Lei Zhang Evaluation of the Physical and Adhesive Properties of Natural Weathering Asphalt Advances in Materials Science and Engineering |
| title | Evaluation of the Physical and Adhesive Properties of Natural Weathering Asphalt |
| title_full | Evaluation of the Physical and Adhesive Properties of Natural Weathering Asphalt |
| title_fullStr | Evaluation of the Physical and Adhesive Properties of Natural Weathering Asphalt |
| title_full_unstemmed | Evaluation of the Physical and Adhesive Properties of Natural Weathering Asphalt |
| title_short | Evaluation of the Physical and Adhesive Properties of Natural Weathering Asphalt |
| title_sort | evaluation of the physical and adhesive properties of natural weathering asphalt |
| url | http://dx.doi.org/10.1155/2021/5783256 |
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