Development of Self-sensing Cementitious Composites with Improved Water and Chloride Resistance

Dong, W; Li, W; Liebscher, M; Mechtcherine, V

Development of Self-sensing Cementitious Composites with Improved Water and Chloride Resistance

Dong, W Li, W

Liebscher, M Mechtcherine, V

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Publisher:: Springer Nature
Publication Type:: Chapter
Citation:: RILEM Bookseries, 2023, 44, pp. 499-508
Issue Date:: 2023-01-01

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Field	Value	Language
dc.contributor.author	Dong, W
dc.contributor.author	Li, W https://orcid.org/0000-0002-4651-1215
dc.contributor.author	Liebscher, M
dc.contributor.author	Mechtcherine, V
dc.date.accessioned	2023-11-09T03:32:39Z
dc.date.available	2023-11-09T03:32:39Z
dc.date.issued	2023-01-01
dc.identifier.citation	RILEM Bookseries, 2023, 44, pp. 499-508
dc.identifier.isbn	9783031331862
dc.identifier.uri	http://hdl.handle.net/10453/173267
dc.description.abstract	The piezoresistivity of cement-based sensors subjected to moisture ambient is changeable due to the porous structures and pore solutions inside of cementitious composites. This study explored the electrical resistivity and self-sensing performance of carbon black (CB) filled cement-based sensors mixed with silicone hydrophobic powder (SHP) and crystalline waterproofing admixture (CWA), especially before and after different durations of immersion in freshwater and 3% sodium chloride solution. The results show that the composites with SHP exhibited the best water impermeability, while the counterpart containing CWA presented the optimal chloride resistance. The piezoresistivity increased in sodium chloride solution because of the increased free ions. The outcomes are expected to illuminate the piezoresistive behavior of hydrophobic cement-based sensors subjected to moisture and chloride environments, thereby promoting structural health monitoring applications in the future.
dc.language	en
dc.publisher	Springer Nature
dc.relation.ispartof	RILEM Bookseries
dc.relation.ispartofseries	RILEM Bookseries
dc.relation.isbasedon	10.1007/978-3-031-33187-9_46
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Development of Self-sensing Cementitious Composites with Improved Water and Chloride Resistance
dc.type	Chapter
utslib.citation.volume	44
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	*
dc.date.updated	2023-11-09T03:32:38Z
pubs.publication-status	Published
pubs.volume	44

Abstract:

The piezoresistivity of cement-based sensors subjected to moisture ambient is changeable due to the porous structures and pore solutions inside of cementitious composites. This study explored the electrical resistivity and self-sensing performance of carbon black (CB) filled cement-based sensors mixed with silicone hydrophobic powder (SHP) and crystalline waterproofing admixture (CWA), especially before and after different durations of immersion in freshwater and 3% sodium chloride solution. The results show that the composites with SHP exhibited the best water impermeability, while the counterpart containing CWA presented the optimal chloride resistance. The piezoresistivity increased in sodium chloride solution because of the increased free ions. The outcomes are expected to illuminate the piezoresistive behavior of hydrophobic cement-based sensors subjected to moisture and chloride environments, thereby promoting structural health monitoring applications in the future.

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http://hdl.handle.net/10453/173267