Shrinkage cracking and crack control in restrained reinforced concrete members

Nejadi, S; Gilbert, I

Shrinkage cracking and crack control in restrained reinforced concrete members

Nejadi, S Gilbert, I

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Publication Type:: Journal Article
Citation:: ACI Structural Journal, 2004, 101 (6), pp. 840 - 845
Issue Date:: 2004-11-01

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Field	Value	Language
dc.contributor.author	Nejadi, S	en_US
dc.contributor.author	Gilbert, I	en_US
dc.date.issued	2004-11-01	en_US
dc.identifier.citation	ACI Structural Journal, 2004, 101 (6), pp. 840 - 845	en_US
dc.identifier.issn	0889-3241	en_US
dc.identifier.uri	http://hdl.handle.net/10453/13867
dc.description.abstract	Cracking caused by shrinkage in restrained reinforced concrete members is considered both experimentally and analytically. Eight longitudinally restrained slab specimens with different reinforcement layouts were monitored for up to 150 days to measure the effects of shrinkage on the time-dependent development of direct tension cracking. Strains in both the reinforcement and the concrete were monitored throughout the tests. The age of the concrete when each crack developed, the crack locations, and the gradual change in crack widths with time were also recorded. An analytical model developed previously to study the problem by Gilbert is modified and recalibrated and the experimental results and analytical predictions are compared. The effects of varying the quantity of reinforcing steel, the bar diameter, and the bar spacing are studied to gain a clearer understanding of the mechanism of direct tension cracking caused by restrained shrinkage and the factors affecting it. Copyright © 2004, American Concrete Institute. All rights reserved.	en_US
dc.relation.ispartof	ACI Structural Journal	en_US
dc.subject.classification	Civil Engineering	en_US
dc.title	Shrinkage cracking and crack control in restrained reinforced concrete members	en_US
dc.type	Journal Article
utslib.citation.volume	6	en_US
utslib.citation.volume	101	en_US
utslib.for	1202 Building	en_US
utslib.for	0905 Civil Engineering	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	6	en_US
pubs.publication-status	Published	en_US
pubs.volume	101	en_US

Abstract:

Cracking caused by shrinkage in restrained reinforced concrete members is considered both experimentally and analytically. Eight longitudinally restrained slab specimens with different reinforcement layouts were monitored for up to 150 days to measure the effects of shrinkage on the time-dependent development of direct tension cracking. Strains in both the reinforcement and the concrete were monitored throughout the tests. The age of the concrete when each crack developed, the crack locations, and the gradual change in crack widths with time were also recorded. An analytical model developed previously to study the problem by Gilbert is modified and recalibrated and the experimental results and analytical predictions are compared. The effects of varying the quantity of reinforcing steel, the bar diameter, and the bar spacing are studied to gain a clearer understanding of the mechanism of direct tension cracking caused by restrained shrinkage and the factors affecting it. Copyright © 2004, American Concrete Institute. All rights reserved.

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http://hdl.handle.net/10453/13867