Effect of capsule addition and healing temperature on the self-healing potential of asphalt mixtures

Al-Mansoori, T.; Norambuena-Contreras, Jose; Garcia, A.

doi:10.1617/s11527-018-1172-5

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Effect of capsule addition and healing temperature on the self-healing potential of asphalt mixtures

T. Al-Mansoori, Jose Norambuena-Contreras

, A. Garcia

Materials and Structures, Volume: 51, Issue: 2

Swansea University Author: Jose Norambuena-Contreras

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DOI (Published version): 10.1617/s11527-018-1172-5

Abstract

This paper presents the self-healing results of asphalt mixtures by the action of capsules containing sunflower oil as encapsulated rejuvenator. Three different capsule contents, 0.10, 0.25 and 0.50% by total weight of the mixture, were added to the samples. The mechanical and thermal properties of...

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Published in:	Materials and Structures
ISSN:	1359-5997 1871-6873
Published:	Springer Science and Business Media LLC 2018
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URI:	https://cronfa.swan.ac.uk/Record/cronfa66800
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spelling	v2 66800 2024-06-20 Effect of capsule addition and healing temperature on the self-healing potential of asphalt mixtures 73c6854ebb10465fbf7faab297135641 0000-0001-8327-2236 Jose Norambuena-Contreras Jose Norambuena-Contreras true false 2024-06-20 ACEM This paper presents the self-healing results of asphalt mixtures by the action of capsules containing sunflower oil as encapsulated rejuvenator. Three different capsule contents, 0.10, 0.25 and 0.50% by total weight of the mixture, were added to the samples. The mechanical and thermal properties of capsules have been evaluated. In addition, the effect of the capsule addition and the healing temperature on the self-healing properties of asphalt mixtures have been evaluated through three-point bending tests on the cracked asphalt beams with, and without, capsules. The test was implemented by comparing the strength recovery of the broken beams after healing to their original flexural strength. It was proven that the capsules can resist the mixing and compaction processes and break inside the asphalt mixture as a result of applying external mechanical loads, releasing the encapsulated oil. The capsules content in asphalt mixture has a significant influence on the healing level, where a higher capsule content led to obtaining higher healing levels. Likewise, asphalt with, and without, capsules presents an increase of the healing level when the temperature increases. Finally, it was proved that healing temperature has higher influence on the healing levels of the asphalt below 40 °C. Journal Article Materials and Structures 51 2 Springer Science and Business Media LLC 1359-5997 1871-6873 Asphalt mixture; Capsule influence; Encapsulated rejuvenator; Healing temperature; Healing level 26 3 2018 2018-03-26 10.1617/s11527-018-1172-5 COLLEGE NANME Aerospace, Civil, Electrical, and Mechanical Engineering COLLEGE CODE ACEM Swansea University Another institution paid the OA fee The first author would like to acknowledge the financial support of the Higher Committee for Education Development in Iraq for his Ph.D. scholarship. The second author wishes to thank the Government of Chile, since this work was partially funded by the CONICYT/BECAS CHILE 74170030. Finally, the authors would like to thank Highways England from the Government of the UK for the funding given, through the Research Project ref. 558065, entitled: Self-healing asphalt using embedded capsules. 2024-07-26T13:36:35.3264786 2024-06-20T12:29:43.3968615 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering T. Al-Mansoori 1 Jose Norambuena-Contreras 0000-0001-8327-2236 2 A. Garcia 0000-0001-8730-6632 3 66800__30998__17373ab9eaf543e18c818953fd5abf94.pdf 66800.VoR.pdf 2024-07-26T13:35:18.9726511 Output 1549172 application/pdf Version of Record true Copyright: The Author(s) 2018. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License. true eng http://creativecommons.org/licenses/by/4.0/
title	Effect of capsule addition and healing temperature on the self-healing potential of asphalt mixtures
spellingShingle	Effect of capsule addition and healing temperature on the self-healing potential of asphalt mixtures Jose Norambuena-Contreras
title_short	Effect of capsule addition and healing temperature on the self-healing potential of asphalt mixtures
title_full	Effect of capsule addition and healing temperature on the self-healing potential of asphalt mixtures
title_fullStr	Effect of capsule addition and healing temperature on the self-healing potential of asphalt mixtures
title_full_unstemmed	Effect of capsule addition and healing temperature on the self-healing potential of asphalt mixtures
title_sort	Effect of capsule addition and healing temperature on the self-healing potential of asphalt mixtures
author_id_str_mv	73c6854ebb10465fbf7faab297135641
author_id_fullname_str_mv	73c6854ebb10465fbf7faab297135641_***_Jose Norambuena-Contreras
author	Jose Norambuena-Contreras
author2	T. Al-Mansoori Jose Norambuena-Contreras A. Garcia
format	Journal article
container_title	Materials and Structures
container_volume	51
container_issue	2
publishDate	2018
institution	Swansea University
issn	1359-5997 1871-6873
doi_str_mv	10.1617/s11527-018-1172-5
publisher	Springer Science and Business Media LLC
college_str	Faculty of Science and Engineering
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hierarchy_top_id	facultyofscienceandengineering
hierarchy_top_title	Faculty of Science and Engineering
hierarchy_parent_id	facultyofscienceandengineering
hierarchy_parent_title	Faculty of Science and Engineering
department_str	School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering
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description	This paper presents the self-healing results of asphalt mixtures by the action of capsules containing sunflower oil as encapsulated rejuvenator. Three different capsule contents, 0.10, 0.25 and 0.50% by total weight of the mixture, were added to the samples. The mechanical and thermal properties of capsules have been evaluated. In addition, the effect of the capsule addition and the healing temperature on the self-healing properties of asphalt mixtures have been evaluated through three-point bending tests on the cracked asphalt beams with, and without, capsules. The test was implemented by comparing the strength recovery of the broken beams after healing to their original flexural strength. It was proven that the capsules can resist the mixing and compaction processes and break inside the asphalt mixture as a result of applying external mechanical loads, releasing the encapsulated oil. The capsules content in asphalt mixture has a significant influence on the healing level, where a higher capsule content led to obtaining higher healing levels. Likewise, asphalt with, and without, capsules presents an increase of the healing level when the temperature increases. Finally, it was proved that healing temperature has higher influence on the healing levels of the asphalt below 40 °C.
published_date	2018-03-26T13:36:34Z
_version_	1805645140019118080
score	11.037056

Effect of capsule addition and healing temperature on the self-healing potential of asphalt mixtures

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