Shrinkage Cracking of Restrained Concrete Slabs
Publication: Journal of Engineering Mechanics
Volume 124, Issue 7
Abstract
The goal of this investigation was to better understand and predict early-age shrinkage cracking in restrained concrete structures. The threefold aim of this study included: (1) the development of test methods to assess the potential for shrinkage cracking; (2) the development of a theoretical model to predict cracking; and (3) the evaluation of a nonexpansive shrinkage reducing admixture. Two test configurations were used in evaluating the potential for restrained shrinkage cracking, ring-type and slab-type specimens. Experiments were performed on both normal and high strength concrete with 0, 1, and 2% shrinking reducing admixture. Time-dependent material properties were measured and the effect of restraint was tested in both ring and slab specimens. A computer-automated fracture mechanics model was used to successfully predict the age at first cracking. Results exhibit favorable comparison between theoretical modeling and experimental observations.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 124 • Issue 7 • July 1998
Pages: 765 - 774
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Jul 1, 1998
Published in print: Jul 1998
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