Experimental exploration on impact characteristics of ultra-high performance concrete at low and cryogenic temperature

Chi, K; Li, J; Shao, R; Liu, J; Liu, Z; Wu, C

Experimental exploration on impact characteristics of ultra-high performance concrete at low and cryogenic temperature

Chi, K

Li, J

Shao, R

Liu, J Liu, Z Wu, C

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Journal of Building Engineering, 2024, 98, pp. 111478
Issue Date:: 2024-12-01

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Field	Value	Language
dc.contributor.author	Chi, K https://orcid.org/0000-0002-1872-6323
dc.contributor.author	Li, J https://orcid.org/0000-0003-2457-1994
dc.contributor.author	Shao, R https://orcid.org/0000-0002-2648-6892
dc.contributor.author	Liu, J
dc.contributor.author	Liu, Z
dc.contributor.author	Wu, C https://orcid.org/0000-0001-8907-8493
dc.date.accessioned	2025-01-24T05:06:24Z
dc.date.available	2025-01-24T05:06:24Z
dc.date.issued	2024-12-01
dc.identifier.citation	Journal of Building Engineering, 2024, 98, pp. 111478
dc.identifier.issn	2352-7102
dc.identifier.issn	2352-7102
dc.identifier.uri	http://hdl.handle.net/10453/184185
dc.description.abstract	Concrete structures in polar region and liquefied gas storage system need to be designed against combined low temperature and dynamic loads. Understanding the mechanical behaviour of concrete under these extreme conditions is critical for ensuring the structural integrity and safety. This study presents an experimental investigation on the dynamic compressive and splitting tensile performance of UHPC subjected to low temperatures of −70 °C and −160 °C. The compressive and splitting tensile strengths of UHPC were examined at various strain rates (40–160 s−1 for compression, 20–80 s−1 for splitting tension) and temperature conditions (at 20, -70 and −160 °C) via Split Hopkinson Pressure Bar (SHPB) device. The dynamic compressive as well as splitting tensile strengths of UHPC increased significantly with rose of the strain rate. The dynamic increase factors in compression (CDIFs) decreased with the decline in temperature. The compressive strength under a strain rate of 120 s−1 at ambient temperature were approximately 1.09 and 1.16 times higher than at −70 and −160 °C, respectively. On the other hand, an opposite behaviour was observed for the dynamic increase factors in split tension (TDIFs) of UHPC, i.e., TDIFs rose as the temperature decreased. Based on the experimental data, it showed that the TDIFs at −70 and −160 °C were nearly 1.16 and 1.21 times higher than at 20 °C at the specified strain rate 60 s−1.
dc.language	en
dc.publisher	Elsevier
dc.relation	http://purl.org/au-research/grants/arc/DP210101100
dc.relation.ispartof	Journal of Building Engineering
dc.relation.isbasedon	10.1016/j.jobe.2024.111478
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0905 Civil Engineering, 1201 Architecture, 1202 Building
dc.subject.classification	3302 Building
dc.subject.classification	4005 Civil engineering
dc.title	Experimental exploration on impact characteristics of ultra-high performance concrete at low and cryogenic temperature
dc.type	Journal Article
utslib.citation.volume	98
utslib.for	0905 Civil Engineering
utslib.for	1201 Architecture
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/UTS Groups
pubs.organisational-group	University of Technology Sydney/UTS Groups/Centre for Built Infrastructure Resilience (CBIR)
utslib.copyright.status	open_access	*
dc.rights.license	This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/
dc.date.updated	2025-01-24T05:06:20Z
pubs.publication-status	Published
pubs.volume	98

Abstract:

Concrete structures in polar region and liquefied gas storage system need to be designed against combined low temperature and dynamic loads. Understanding the mechanical behaviour of concrete under these extreme conditions is critical for ensuring the structural integrity and safety. This study presents an experimental investigation on the dynamic compressive and splitting tensile performance of UHPC subjected to low temperatures of −70 °C and −160 °C. The compressive and splitting tensile strengths of UHPC were examined at various strain rates (40–160 s−1 for compression, 20–80 s−1 for splitting tension) and temperature conditions (at 20, -70 and −160 °C) via Split Hopkinson Pressure Bar (SHPB) device. The dynamic compressive as well as splitting tensile strengths of UHPC increased significantly with rose of the strain rate. The dynamic increase factors in compression (CDIFs) decreased with the decline in temperature. The compressive strength under a strain rate of 120 s−1 at ambient temperature were approximately 1.09 and 1.16 times higher than at −70 and −160 °C, respectively. On the other hand, an opposite behaviour was observed for the dynamic increase factors in split tension (TDIFs) of UHPC, i.e., TDIFs rose as the temperature decreased. Based on the experimental data, it showed that the TDIFs at −70 and −160 °C were nearly 1.16 and 1.21 times higher than at 20 °C at the specified strain rate 60 s−1.

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http://hdl.handle.net/10453/184185