Recent advances in calcium alginate hydrogels encapsulating rejuvenator for asphalt self-healing
Summary: The inherent self-healing ability of asphalt is insufficient and fails to timely repair the cracks due to the combined effect of temperature variation, air oxidation, ultraviolet exposure and traffic loading. Rejuvenator encapsulation based on self-healing asphalt is a green sustainable pre...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2022-09-01
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| Series: | Journal of Road Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2097049822000439 |
| _version_ | 1797742198678093824 |
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| author | Pei Wan Shaopeng Wu Quantao Liu Yingxue Zou Zenggang Zhao Shuaichao Chen |
| author_facet | Pei Wan Shaopeng Wu Quantao Liu Yingxue Zou Zenggang Zhao Shuaichao Chen |
| author_sort | Pei Wan |
| collection | DOAJ |
| description | Summary: The inherent self-healing ability of asphalt is insufficient and fails to timely repair the cracks due to the combined effect of temperature variation, air oxidation, ultraviolet exposure and traffic loading. Rejuvenator encapsulation based on self-healing asphalt is a green sustainable preventive maintenance technology for asphalt pavement. During the last decade, rejuvenator encapsulation for asphalt self-healing has been a research hotspot and calcium alginate hydrogels encapsulating rejuvenator is a promising self-healing technology. Hence, this review sheds light on the recent advances of calcium alginate hydrogels encapsulating asphalt rejuvenator including self-healing capsules and fibers. The synthesis methods of calcium alginate capsules and fibers containing rejuvenator were elaborately introduced, and their surface morphology, interior structure, mechanical strength, thermal stability, rejuvenator content, distribution and survival in asphalt materials were systematically analyzed. Besides, the effect of capsules and fiber on the mechanical property and pavement performance of asphalt concrete were explored. Additionally, a comprehensive review about the effect of calcium alginate capsules and fibers on self-healing ability of asphalt materials were presented, and the rejuvenator release mechanism and release ratio of them in asphalt mixtures were expounded. In a nutshell, this review aims at highlighting the current research achievements on alginate capsules and fibers containing rejuvenator in asphalt materials, and inspiring enhanced self-healing methods for smart and sustainable maintenance of asphalt pavement. |
| first_indexed | 2024-03-12T14:37:34Z |
| format | Article |
| id | doaj.art-d4b1ed8e051c45519cf9651f7312849b |
| institution | Directory Open Access Journal |
| issn | 2097-0498 |
| language | English |
| last_indexed | 2024-03-12T14:37:34Z |
| publishDate | 2022-09-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Road Engineering |
| spelling | doaj.art-d4b1ed8e051c45519cf9651f7312849b2023-08-17T04:27:27ZengKeAi Communications Co., Ltd.Journal of Road Engineering2097-04982022-09-0123181220Recent advances in calcium alginate hydrogels encapsulating rejuvenator for asphalt self-healingPei Wan0Shaopeng Wu1Quantao Liu2Yingxue Zou3Zenggang Zhao4Shuaichao Chen5State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, ChinaCorresponding author.; State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, ChinaState Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, ChinaState Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, ChinaState Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, ChinaState Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, ChinaSummary: The inherent self-healing ability of asphalt is insufficient and fails to timely repair the cracks due to the combined effect of temperature variation, air oxidation, ultraviolet exposure and traffic loading. Rejuvenator encapsulation based on self-healing asphalt is a green sustainable preventive maintenance technology for asphalt pavement. During the last decade, rejuvenator encapsulation for asphalt self-healing has been a research hotspot and calcium alginate hydrogels encapsulating rejuvenator is a promising self-healing technology. Hence, this review sheds light on the recent advances of calcium alginate hydrogels encapsulating asphalt rejuvenator including self-healing capsules and fibers. The synthesis methods of calcium alginate capsules and fibers containing rejuvenator were elaborately introduced, and their surface morphology, interior structure, mechanical strength, thermal stability, rejuvenator content, distribution and survival in asphalt materials were systematically analyzed. Besides, the effect of capsules and fiber on the mechanical property and pavement performance of asphalt concrete were explored. Additionally, a comprehensive review about the effect of calcium alginate capsules and fibers on self-healing ability of asphalt materials were presented, and the rejuvenator release mechanism and release ratio of them in asphalt mixtures were expounded. In a nutshell, this review aims at highlighting the current research achievements on alginate capsules and fibers containing rejuvenator in asphalt materials, and inspiring enhanced self-healing methods for smart and sustainable maintenance of asphalt pavement.http://www.sciencedirect.com/science/article/pii/S2097049822000439Asphalt self-healingCalcium alginateCapsulesFibersRejuvenator encapsulation |
| spellingShingle | Pei Wan Shaopeng Wu Quantao Liu Yingxue Zou Zenggang Zhao Shuaichao Chen Recent advances in calcium alginate hydrogels encapsulating rejuvenator for asphalt self-healing Journal of Road Engineering Asphalt self-healing Calcium alginate Capsules Fibers Rejuvenator encapsulation |
| title | Recent advances in calcium alginate hydrogels encapsulating rejuvenator for asphalt self-healing |
| title_full | Recent advances in calcium alginate hydrogels encapsulating rejuvenator for asphalt self-healing |
| title_fullStr | Recent advances in calcium alginate hydrogels encapsulating rejuvenator for asphalt self-healing |
| title_full_unstemmed | Recent advances in calcium alginate hydrogels encapsulating rejuvenator for asphalt self-healing |
| title_short | Recent advances in calcium alginate hydrogels encapsulating rejuvenator for asphalt self-healing |
| title_sort | recent advances in calcium alginate hydrogels encapsulating rejuvenator for asphalt self healing |
| topic | Asphalt self-healing Calcium alginate Capsules Fibers Rejuvenator encapsulation |
| url | http://www.sciencedirect.com/science/article/pii/S2097049822000439 |
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