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Synthesis and Effect of Encapsulating Rejuvenator Fiber on the Performance of Asphalt Mixture
,
Shiwen Bao,
Shaopeng Wu,
Lijie Dong,
Chao Li,
Xu Yang,
Jose Norambuena-Contreras ,
Quantao Liu,
Qing Wang
Materials, Volume: 12, Issue: 8, Start page: 1266
Swansea University Author:
Jose Norambuena-Contreras
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DOI (Published version): 10.3390/ma12081266
Abstract
The idea of prolonging the service life of asphalt mixture by improving the self-healing ability of asphalt has received extensive attention in recent years. In view of this, this work synthesized three kinds of encapsulating rejuvenator fibers to improve self-healing properties of asphalt mixtures....
| Published in: | Materials |
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| ISSN: | 1996-1944 |
| Published: |
MDPI AG
2019
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| Online Access: |
Check full text
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa66791 |
| Abstract: |
The idea of prolonging the service life of asphalt mixture by improving the self-healing ability of asphalt has received extensive attention in recent years. In view of this, this work synthesized three kinds of encapsulating rejuvenator fibers to improve self-healing properties of asphalt mixtures. A series of characterizations were performed to study the morphology, chemical structure and thermal stability of the three kinds of fibers. Subsequently, the road performance of asphalt mixture containing the fiber were investigated, which included high and low temperature, water sensitivity and fatigue performances. Finally, the self-healing performance of asphalt mixture containing the fiber was investigated by 3PB test. The results revealed that the three kinds of encapsulating rejuvenator fibers were successfully synthesized. The fibers had excellent thermal stability, which met temperature requirements in the mixing and compaction process of asphalt mixtures. Road performance of asphalt mixture containing the fiber met the requirements. Self-healing ability of asphalt mixture containing the fiber was improved. Synergistic action of temperature and rejuvenator could further significantly improve the self-healing ability of the asphalt mixture. |
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| Keywords: |
asphalt mixture; encapsulated rejuvenator; road performance; self-healing |
| College: |
Faculty of Science and Engineering |
| Funders: |
This research was funded by National Key R&D Program of China (No. 2018YFB1600200). This work presented in this paper was supported by National Natural Science Foundation of China (71961137010). The authors acknowledge the financial support by the Natural Science Foundation of China (No. 51778515) and National Key R&D Program of China (No. 2017YFE0111600). Finally, the sixth author thanks the financial support by the National Science Foundation of China (No. 5170081212). |
| Issue: |
8 |
| Start Page: |
1266 |