Self-healing efficiency and crack closure of smart cementitious composite with crystalline admixture and structural polyurethane

Xue, C; Li, W; Qu, F; Sun, Z; Shah, SP

Self-healing efficiency and crack closure of smart cementitious composite with crystalline admixture and structural polyurethane

Xue, C Li, W

Qu, F Sun, Z Shah, SP

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Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Construction and Building Materials, 2020, 260
Issue Date:: 2020-11-10

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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	Qu, F
dc.contributor.author	Sun, Z
dc.contributor.author	Shah, SP
dc.date.accessioned	2021-03-16T00:57:21Z
dc.date.available	2021-03-16T00:57:21Z
dc.date.issued	2020-11-10
dc.identifier.citation	Construction and Building Materials, 2020, 260
dc.identifier.issn	0950-0618
dc.identifier.issn	0950-0618
dc.identifier.uri	http://hdl.handle.net/10453/147216
dc.description.abstract	© 2020 Elsevier Ltd The crack closure and self-healing efficiency of smart self-healing cementitious composite can effectively reveal the mechanism of self-healing performance recovery. This study focused on effects of crack healing on crack closure and mechanical performance recovery of crack-healed cementitious composite, including flexural compressive behaviours. Meanwhile, several parameters were defined to quantify the efficiency of mechanical performance recovery efficiency for self-healing cementitious composite. Furthermore, the interfaces between self-healing products and crack surface were analyzed and compared to provide understanding insight to the self-healing recovery. It is found that the bonding interface dominated the flexural strength recovery, and therefore autonomous self-healing yielded the maximum self-healing efficiency. On the other hand, the stiffness damage recovery index under compression is found to be an effective parameter to evaluate the inner crack healing, which slightly depends on the bonding interface. The related results indicate that the development of smart self-healing cementitious composite should consider the bonding between self-healing product and crack surface to improve the self-healing recovery efficiency for engineering application.
dc.language	English
dc.publisher	ELSEVIER SCI LTD
dc.relation	http://purl.org/au-research/grants/arc/DE150101751
dc.relation.ispartof	Construction and Building Materials
dc.relation.isbasedon	10.1016/j.conbuildmat.2020.119955
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 1202 Building
dc.subject.classification	Building & Construction
dc.title	Self-healing efficiency and crack closure of smart cementitious composite with crystalline admixture and structural polyurethane
dc.type	Journal Article
utslib.citation.volume	260
utslib.for	0905 Civil Engineering
utslib.for	1202 Building
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
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/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2021-03-16T00:57:19Z
pubs.publication-status	Published
pubs.volume	260

Abstract:

© 2020 Elsevier Ltd The crack closure and self-healing efficiency of smart self-healing cementitious composite can effectively reveal the mechanism of self-healing performance recovery. This study focused on effects of crack healing on crack closure and mechanical performance recovery of crack-healed cementitious composite, including flexural compressive behaviours. Meanwhile, several parameters were defined to quantify the efficiency of mechanical performance recovery efficiency for self-healing cementitious composite. Furthermore, the interfaces between self-healing products and crack surface were analyzed and compared to provide understanding insight to the self-healing recovery. It is found that the bonding interface dominated the flexural strength recovery, and therefore autonomous self-healing yielded the maximum self-healing efficiency. On the other hand, the stiffness damage recovery index under compression is found to be an effective parameter to evaluate the inner crack healing, which slightly depends on the bonding interface. The related results indicate that the development of smart self-healing cementitious composite should consider the bonding between self-healing product and crack surface to improve the self-healing recovery efficiency for engineering application.

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http://hdl.handle.net/10453/147216