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Biocapsules containing low-cost rejuvenators for asphalt self-healing

Jose L. Concha Fuentealba, Luis Arteaga-Pérez Orcid Logo, Irene Gonzalez-Torre, Jose Norambuena-Contreras Orcid Logo

RILEM Technical Letters, Volume: 6, Pages: 1 - 7

Swansea University Author: Jose Norambuena-Contreras Orcid Logo

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DOI (Published version): 10.21809/rilemtechlett.2021.129

Abstract

This study aimed to characterise polynuclear biocapsules containing low-cost rejuvenating agents for asphalt self-healing. Capsules consisted of a biopolymeric matrix of calcium alginate containing cooking oil and mineral oil as rejuvenating agents, being synthesised using ionic gelation through the...

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Published in: RILEM Technical Letters
ISSN: 2518-0231
Published: Rilem Publications SARL 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa66770
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spelling v2 66770 2024-06-20 Biocapsules containing low-cost rejuvenators for asphalt self-healing 73c6854ebb10465fbf7faab297135641 0000-0001-8327-2236 Jose Norambuena-Contreras Jose Norambuena-Contreras true false 2024-06-20 ACEM This study aimed to characterise polynuclear biocapsules containing low-cost rejuvenating agents for asphalt self-healing. Capsules consisted of a biopolymeric matrix of calcium alginate containing cooking oil and mineral oil as rejuvenating agents, being synthesised using ionic gelation through the pumping dripping technique. The physical-chemical properties of the oil-in-biopolymer emulsions and their stability over time were studied. The morphological and thermophysical properties of the biocapsules, as well as the encapsulation efficiency of the rejuvenating agents, were quantified and characterised by microscopic techniques and laboratory tests. Main results showed that emulsions should be used for encapsulation purposes within a period no longer than 3h, reducing the effect of instability phenomena. Besides, the biopolymer-based polynuclear capsules presented uniform size, internal multicavity microstructure resulting in high encapsulation efficiencies and thermal stability at high temperatures, proving that cooking oil and mineral oil can be potentially used as low-cost rejuvenating agents and thermally stable additives for asphalt self-healing purposes. Journal Article RILEM Technical Letters 6 1 7 Rilem Publications SARL 2518-0231 Oil rejuvenators, Oil-in-water emulsion, Emulsion instability, Biocapsules, Asphalt self-healing 15 3 2021 2021-03-15 10.21809/rilemtechlett.2021.129 COLLEGE NANME Aerospace, Civil, Electrical, and Mechanical Engineering COLLEGE CODE ACEM Swansea University 2024-07-26T12:01:34.7513796 2024-06-20T10:18:08.2473179 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering Jose L. Concha Fuentealba 1 Luis Arteaga-Pérez 0000-0003-3982-4165 2 Irene Gonzalez-Torre 3 Jose Norambuena-Contreras 0000-0001-8327-2236 4 66770__30995__b0f9dd1421bf437486cbff172dd32f95.pdf 66770.VoR.pdf 2024-07-26T11:57:49.7276292 Output 1784963 application/pdf Version of Record true Released under the terms of a Creative Commons Attribution 4.0 International License (CC BY 4.0) true eng http://creativecommons.org/licenses/by/4.0/
title Biocapsules containing low-cost rejuvenators for asphalt self-healing
spellingShingle Biocapsules containing low-cost rejuvenators for asphalt self-healing
Jose Norambuena-Contreras
title_short Biocapsules containing low-cost rejuvenators for asphalt self-healing
title_full Biocapsules containing low-cost rejuvenators for asphalt self-healing
title_fullStr Biocapsules containing low-cost rejuvenators for asphalt self-healing
title_full_unstemmed Biocapsules containing low-cost rejuvenators for asphalt self-healing
title_sort Biocapsules containing low-cost rejuvenators for asphalt self-healing
author_id_str_mv 73c6854ebb10465fbf7faab297135641
author_id_fullname_str_mv 73c6854ebb10465fbf7faab297135641_***_Jose Norambuena-Contreras
author Jose Norambuena-Contreras
author2 Jose L. Concha Fuentealba
Luis Arteaga-Pérez
Irene Gonzalez-Torre
Jose Norambuena-Contreras
format Journal article
container_title RILEM Technical Letters
container_volume 6
container_start_page 1
publishDate 2021
institution Swansea University
issn 2518-0231
doi_str_mv 10.21809/rilemtechlett.2021.129
publisher Rilem Publications SARL
college_str Faculty of Science and Engineering
hierarchytype
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
document_store_str 1
active_str 0
description This study aimed to characterise polynuclear biocapsules containing low-cost rejuvenating agents for asphalt self-healing. Capsules consisted of a biopolymeric matrix of calcium alginate containing cooking oil and mineral oil as rejuvenating agents, being synthesised using ionic gelation through the pumping dripping technique. The physical-chemical properties of the oil-in-biopolymer emulsions and their stability over time were studied. The morphological and thermophysical properties of the biocapsules, as well as the encapsulation efficiency of the rejuvenating agents, were quantified and characterised by microscopic techniques and laboratory tests. Main results showed that emulsions should be used for encapsulation purposes within a period no longer than 3h, reducing the effect of instability phenomena. Besides, the biopolymer-based polynuclear capsules presented uniform size, internal multicavity microstructure resulting in high encapsulation efficiencies and thermal stability at high temperatures, proving that cooking oil and mineral oil can be potentially used as low-cost rejuvenating agents and thermally stable additives for asphalt self-healing purposes.
published_date 2021-03-15T12:01:34Z
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score 11.037056

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