Investigation on Superhydrophobicity and Piezoresistivity of Self-sensing Cement-Based Sensors Using Silane Surface Treatment

Dong, WK; Li, WG; Lin, XQ; Shah, SP

Investigation on Superhydrophobicity and Piezoresistivity of Self-sensing Cement-Based Sensors Using Silane Surface Treatment

Dong, WK Li, WG Lin, XQ Shah, SP

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Publisher:: Springer Nature
Publication Type:: Chapter
Citation:: Nanotechnology in Construction for Circular Economy, 2023, 356, pp. 17-22
Issue Date:: 2023

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Field	Value	Language
dc.contributor.author	Dong, WK
dc.contributor.author	Li, WG
dc.contributor.author	Lin, XQ
dc.contributor.author	Shah, SP
dc.date.accessioned	2023-10-16T06:00:45Z
dc.date.available	2023-10-16T06:00:45Z
dc.date.issued	2023
dc.identifier.citation	Nanotechnology in Construction for Circular Economy, 2023, 356, pp. 17-22
dc.identifier.isbn	9789819933297
dc.identifier.uri	http://hdl.handle.net/10453/172706
dc.description.abstract	<jats:title>Abstract</jats:title><jats:p>Cement-based sensors are highly susceptible to the effects of watery environments due to the hydrophilic properties of the cement matrix. In this paper, we applied a surface treatment using a silane/isopropanol solution to graphene/cement-based sensors to achieve superhydrophobicity and mitigate piezoresistive instability in watery environments. After treatment, impressive water contact angles of 163.4° and 142.0° were achieved for the surface and inner cement-based sensors, respectively. Moreover, the piezoresistivity of the coated cement-based sensors exhibited greater stability compared to their untreated counterparts. These results provide valuable insights into the piezoresistivity of hydrophobic cement-based sensors in moist environments, offering promising prospects for future structural health monitoring applications.</jats:p>
dc.language	en
dc.publisher	Springer Nature
dc.relation.ispartof	Nanotechnology in Construction for Circular Economy
dc.relation.ispartofseries	Lecture Notes in Civil Engineering
dc.relation.isbasedon	10.1007/978-981-99-3330-3_3
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Investigation on Superhydrophobicity and Piezoresistivity of Self-sensing Cement-Based Sensors Using Silane Surface Treatment
dc.type	Chapter
utslib.citation.volume	356
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
utslib.copyright.status	open_access	*
dc.date.updated	2023-10-16T06:00:44Z
pubs.publication-status	Published
pubs.volume	356

Abstract:

AbstractCement-based sensors are highly susceptible to the effects of watery environments due to the hydrophilic properties of the cement matrix. In this paper, we applied a surface treatment using a silane/isopropanol solution to graphene/cement-based sensors to achieve superhydrophobicity and mitigate piezoresistive instability in watery environments. After treatment, impressive water contact angles of 163.4° and 142.0° were achieved for the surface and inner cement-based sensors, respectively. Moreover, the piezoresistivity of the coated cement-based sensors exhibited greater stability compared to their untreated counterparts. These results provide valuable insights into the piezoresistivity of hydrophobic cement-based sensors in moist environments, offering promising prospects for future structural health monitoring applications.

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