Electromagnetic wave absorption performance of UHPC incorporated with carbon black and carbon fiber

Xu, S; Yang, Y; Wu, C; Liu, K

Electromagnetic wave absorption performance of UHPC incorporated with carbon black and carbon fiber

Xu, S Yang, Y Wu, C

Liu, K

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Publisher:: SPRINGERNATURE
Publication Type:: Journal Article
Citation:: Archives of Civil and Mechanical Engineering, 2022, 22, (2)
Issue Date:: 2022-05-01

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Field	Value	Language
dc.contributor.author	Xu, S
dc.contributor.author	Yang, Y
dc.contributor.author	Wu, C https://orcid.org/0000-0001-6786-7934
dc.contributor.author	Liu, K
dc.date.accessioned	2023-04-20T00:54:43Z
dc.date.available	2023-04-20T00:54:43Z
dc.date.issued	2022-05-01
dc.identifier.citation	Archives of Civil and Mechanical Engineering, 2022, 22, (2)
dc.identifier.issn	1644-9665
dc.identifier.issn	2083-3318
dc.identifier.uri	http://hdl.handle.net/10453/170003
dc.description.abstract	This study focuses on the electromagnetic wave absorption performance (EWAP) of ultra-high-performance concrete (UHPC) incorporated with carbon black (CB) and carbon fiber (CF) in 2–18 GHz frequency range (required for the radar wave absorbing materials). The reflectivity of the traditional UHPC was investigated and compared to the cement-based composites reported in the literatures, so as to illustrate the advantages of novel UHPCs with respect to EWAP. Afterwards, the effect of CB and CF on the compressive strength, complex permittivity and reflectivity of the novel UHPCs was investigated. The microstructure of the novel UHPCs was also explored via scanning electron microscopy to illustrate the mechanism of performance enhancement on incorporating CB and CF. The results indicated that EWAP of the traditional UHPC was similar or inferior (at specific frequencies) to the literature reported cement-based composites. However, EWAP of the novel UHPCs was significantly improved after reinforcing with CB or CF. A positive effect of CB and CF was also observed on the compressive strength of the developed UHPCs. This study provides avenues for the use of UHPCs in protecting structures for absorbing the electromagnetic waves and safeguarding these structures against extreme loads, including blast and penetration.
dc.language	English
dc.publisher	SPRINGERNATURE
dc.relation	National Natural Science Foundation of China51978186
dc.relation.ispartof	Archives of Civil and Mechanical Engineering
dc.relation.isbasedon	10.1007/s43452-022-00380-1
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the version of record and does not reflect post-acceptance improvements, or any corrections. The version of record is available online at: http://dx.doi.org/10.1007/s43452-022-00380-1
dc.subject	0913 Mechanical Engineering
dc.title	Electromagnetic wave absorption performance of UHPC incorporated with carbon black and carbon fiber
dc.type	Journal Article
utslib.citation.volume	22
utslib.for	0913 Mechanical Engineering
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	open_access	*
dc.date.updated	2023-04-20T00:54:42Z
pubs.issue	2
pubs.publication-status	Published
pubs.volume	22
utslib.citation.issue	2

Abstract:

This study focuses on the electromagnetic wave absorption performance (EWAP) of ultra-high-performance concrete (UHPC) incorporated with carbon black (CB) and carbon fiber (CF) in 2–18 GHz frequency range (required for the radar wave absorbing materials). The reflectivity of the traditional UHPC was investigated and compared to the cement-based composites reported in the literatures, so as to illustrate the advantages of novel UHPCs with respect to EWAP. Afterwards, the effect of CB and CF on the compressive strength, complex permittivity and reflectivity of the novel UHPCs was investigated. The microstructure of the novel UHPCs was also explored via scanning electron microscopy to illustrate the mechanism of performance enhancement on incorporating CB and CF. The results indicated that EWAP of the traditional UHPC was similar or inferior (at specific frequencies) to the literature reported cement-based composites. However, EWAP of the novel UHPCs was significantly improved after reinforcing with CB or CF. A positive effect of CB and CF was also observed on the compressive strength of the developed UHPCs. This study provides avenues for the use of UHPCs in protecting structures for absorbing the electromagnetic waves and safeguarding these structures against extreme loads, including blast and penetration.

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http://hdl.handle.net/10453/170003