Crack propagation in recycled aggregate concrete under uniaxial compressive loading

Xiao, J; Li, W; Sun, Z; Shah, SP

Crack propagation in recycled aggregate concrete under uniaxial compressive loading

Xiao, J Li, W

Sun, Z Shah, SP

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Publication Type:: Journal Article
Citation:: ACI Materials Journal, 2012, 109 (4), pp. 451 - 462
Issue Date:: 2012-07-01

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Field	Value	Language
dc.contributor.author	Xiao, J	en_US
dc.contributor.author	Li, W https://orcid.org/0000-0002-4651-1215	en_US
dc.contributor.author	Sun, Z	en_US
dc.contributor.author	Shah, SP	en_US
dc.date.issued	2012-07-01	en_US
dc.identifier.citation	ACI Materials Journal, 2012, 109 (4), pp. 451 - 462	en_US
dc.identifier.issn	0889-325X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/115491
dc.description.abstract	In this study, systematic experimental research was carried out to investigate the crack propagation of modeled recycled aggregate concrete (MRAC) and recycled aggregate concrete (RAC) under uniaxial compressive loading. A two-dimensional (2-D) nondestructive digital image correlation (DIC) technique was applied to record the initiation and propagation of surface microcracks. The obtained results indicated that the fracture process and crack pattern of MRAC were greatly affected by the relative strength of new mortar and old mortar. It was also found that the failure mode of RAC was related to the water-cement ratio (w/c) of the mixture. The bond cracks first appeared around the weak interfacial transition zones (ITZs) and then propagated into the mortar region by connecting with each other. The failure pattern of MRAC can provide insight into the influences of the mechanical properties of each phase on the failure mechanism of RAC. © 2012, American Concrete Institute. All rights reserved.	en_US
dc.relation.ispartof	ACI Materials Journal	en_US
dc.subject.classification	Building & Construction	en_US
dc.title	Crack propagation in recycled aggregate concrete under uniaxial compressive loading	en_US
dc.type	Journal Article
utslib.citation.volume	4	en_US
utslib.citation.volume	109	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	1202 Building	en_US
pubs.embargo.period	Not known	en_US
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
pubs.issue	4	en_US
pubs.publication-status	Published	en_US
pubs.volume	109	en_US

Abstract:

In this study, systematic experimental research was carried out to investigate the crack propagation of modeled recycled aggregate concrete (MRAC) and recycled aggregate concrete (RAC) under uniaxial compressive loading. A two-dimensional (2-D) nondestructive digital image correlation (DIC) technique was applied to record the initiation and propagation of surface microcracks. The obtained results indicated that the fracture process and crack pattern of MRAC were greatly affected by the relative strength of new mortar and old mortar. It was also found that the failure mode of RAC was related to the water-cement ratio (w/c) of the mixture. The bond cracks first appeared around the weak interfacial transition zones (ITZs) and then propagated into the mortar region by connecting with each other. The failure pattern of MRAC can provide insight into the influences of the mechanical properties of each phase on the failure mechanism of RAC. © 2012, American Concrete Institute. All rights reserved.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/115491