Crack Assessment Using Acoustic Emission in Cement-Free High-Performance Concrete Under Mechanical Stress

Rostampour, MA; Mostofinejad, D; Bahmani, H; Mostafaei, H

Crack Assessment Using Acoustic Emission in Cement-Free High-Performance Concrete Under Mechanical Stress

Rostampour, MA Mostofinejad, D Bahmani, H Mostafaei, H

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Publisher:: MDPI
Publication Type:: Journal Article
Citation:: Journal of Composites Science, 2025, 9, (7)
Issue Date:: 2025-07-01

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Field	Value	Language
dc.contributor.author	Rostampour, MA
dc.contributor.author	Mostofinejad, D
dc.contributor.author	Bahmani, H
dc.contributor.author	Mostafaei, H https://orcid.org/0000-0002-0364-4552
dc.date.accessioned	2025-12-22T00:07:41Z
dc.date.available	2025-12-22T00:07:41Z
dc.date.issued	2025-07-01
dc.identifier.citation	Journal of Composites Science, 2025, 9, (7)
dc.identifier.issn	2504-477X
dc.identifier.issn	2504-477X
dc.identifier.uri	http://hdl.handle.net/10453/191047
dc.description.abstract	This study investigates the cracking behavior of high-performance calcium oxide-activated concrete incorporating basalt and synthetic macro fibers under compressive and flexural loading. Acoustic emission (AE) monitoring was employed to capture real-time crack initiation and propagation, offering insights into damage evolution mechanisms. A comprehensive series of uniaxial compression and four-point bending tests were conducted on fiber-reinforced and plain specimens. AE parameters, including count, duration, risetime, amplitude, and signal energy, were analyzed to quantify crack intensity and classify fracture modes. The results showed that tensile cracking dominated even under compressive loading due to lateral stresses, while fiber inclusion significantly enhanced toughness by promoting distributed microcracking and reducing abrupt energy release. Basalt fibers were particularly effective under flexural loading, increasing the post-peak load-bearing capacity, whereas synthetic macro fibers excelled in minimizing tensile crack occurrence under compression.
dc.language	English
dc.publisher	MDPI
dc.relation.ispartof	Journal of Composites Science
dc.relation.isbasedon	10.3390/jcs9070380
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	4016 Materials engineering
dc.title	Crack Assessment Using Acoustic Emission in Cement-Free High-Performance Concrete Under Mechanical Stress
dc.type	Journal Article
utslib.citation.volume	9
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/Engineering and IT Related HDR Students
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	2025-12-22T00:07:32Z
pubs.issue	7
pubs.publication-status	Published
pubs.volume	9
utslib.citation.issue	7

Abstract:

This study investigates the cracking behavior of high-performance calcium oxide-activated concrete incorporating basalt and synthetic macro fibers under compressive and flexural loading. Acoustic emission (AE) monitoring was employed to capture real-time crack initiation and propagation, offering insights into damage evolution mechanisms. A comprehensive series of uniaxial compression and four-point bending tests were conducted on fiber-reinforced and plain specimens. AE parameters, including count, duration, risetime, amplitude, and signal energy, were analyzed to quantify crack intensity and classify fracture modes. The results showed that tensile cracking dominated even under compressive loading due to lateral stresses, while fiber inclusion significantly enhanced toughness by promoting distributed microcracking and reducing abrupt energy release. Basalt fibers were particularly effective under flexural loading, increasing the post-peak load-bearing capacity, whereas synthetic macro fibers excelled in minimizing tensile crack occurrence under compression.

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http://hdl.handle.net/10453/191047