Effect of incompatibility between healing agent and cement matrix on self-healing performance of intelligent cementitious composite

Xue, C; Li, W; Castel, A; Wang, K; Sheng, D

Effect of incompatibility between healing agent and cement matrix on self-healing performance of intelligent cementitious composite

Xue, C Li, W

Castel, A

Wang, K Sheng, D

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Publisher:: IOP PUBLISHING LTD
Publication Type:: Journal Article
Citation:: Smart Materials and Structures, 2020, 29, (11)
Issue Date:: 2020-11-01

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Field	Value	Language
dc.contributor.author	Xue, C
dc.contributor.author	Li, W https://orcid.org/0000-0002-4651-1215
dc.contributor.author	Castel, A https://orcid.org/0000-0003-1619-9643
dc.contributor.author	Wang, K
dc.contributor.author	Sheng, D https://orcid.org/0000-0002-1665-6931
dc.date.accessioned	2020-12-21T06:23:30Z
dc.date.available	2020-12-21T06:23:30Z
dc.date.issued	2020-11-01
dc.identifier.citation	Smart Materials and Structures, 2020, 29, (11)
dc.identifier.issn	0964-1726
dc.identifier.issn	1361-665X
dc.identifier.uri	http://hdl.handle.net/10453/144888
dc.description.abstract	© 2020 IOP Publishing Ltd. Encapsulation-based intelligent self-healing cementitious composite with a potential of crack self-healing and closure is promising to recovery concrete from damage and improve the durability and serviceability of infrastructures. The efficiency of self-healing concrete were investigated, but limited studies have been conducted on effect of incompatibility between the self-healing agent and cement matrix on the cracking behaviour and recovery efficiency of crack-healed concrete. In this study, a coupled experimental and numerical investigations were adopted to understand the cracking behaviours of crack-healed cementitious composites using traction-separation law by extended finite element method (XFEM). Firstly, experimental investigation was conducted to characterize the properties and parameters of cement matrix and healing agent-crack interface to calibrate the traction-separation law. Then, various parameters of healing agent, cement matrix, and their interface on the performance of crack-healed cementitious composite was numerically analysed. The results indicate that to achieve excellent self-healing performance, it is vital to consider the incompatibility between healing agent and cement matrix in the design of intelligent self-healing cementitious composites.
dc.language	English
dc.publisher	IOP PUBLISHING LTD
dc.relation	http://purl.org/au-research/grants/arc/DE150101751
dc.relation	http://purl.org/au-research/grants/arc/IH150100006
dc.relation.ispartof	Smart Materials and Structures
dc.relation.isbasedon	http://dx.doi.org/10.1088/1361-665X/aba9ac
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.rights	This is an author-created, un-copyedited version of an article accepted for publication in Smart Materials and Structures. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The definitive publisher-authenticated version is available online at http://dx.doi.org/10.1088/1361-665X/aba9ac.	en_US
dc.subject	03 Chemical Sciences, 09 Engineering
dc.subject.classification	Materials
dc.title	Effect of incompatibility between healing agent and cement matrix on self-healing performance of intelligent cementitious composite
dc.type	Journal Article
utslib.citation.volume	29
utslib.for	0905 Civil Engineering
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
dc.date.updated	2020-12-21T06:23:21Z
pubs.issue	11
pubs.publication-status	Published
pubs.volume	29
utslib.citation.issue	11

Abstract:

© 2020 IOP Publishing Ltd. Encapsulation-based intelligent self-healing cementitious composite with a potential of crack self-healing and closure is promising to recovery concrete from damage and improve the durability and serviceability of infrastructures. The efficiency of self-healing concrete were investigated, but limited studies have been conducted on effect of incompatibility between the self-healing agent and cement matrix on the cracking behaviour and recovery efficiency of crack-healed concrete. In this study, a coupled experimental and numerical investigations were adopted to understand the cracking behaviours of crack-healed cementitious composites using traction-separation law by extended finite element method (XFEM). Firstly, experimental investigation was conducted to characterize the properties and parameters of cement matrix and healing agent-crack interface to calibrate the traction-separation law. Then, various parameters of healing agent, cement matrix, and their interface on the performance of crack-healed cementitious composite was numerically analysed. The results indicate that to achieve excellent self-healing performance, it is vital to consider the incompatibility between healing agent and cement matrix in the design of intelligent self-healing cementitious composites.

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http://hdl.handle.net/10453/144888