Low-Cycle Fatigue Testing of High-Performance Concrete Bonded Overlay–Bridge Deck Slab Systems
Publication: Journal of Bridge Engineering
Volume 12, Issue 4
Abstract
Plain and fibrous latex modified concrete and microsilica concrete overlays with acceptable laboratory strength and durability characteristics were installed on a full-scale prototype bridge deck for field performance evaluation. After of exposure to drying shrinkage, temperature variations, and freeze–thaw cycles, no cracking or debonding were observed in the overlays. The bond strengths at and at were acceptable for all overlay types due to the excellent curing and surface preparation using water-jet blasting. The prototype bridge was then statically tested before and after applying low-cycle fatigue loading simulating AASHTO HS20 truck service load, overload, and ultimate load. Minor bond strength deterioration at the maximum negative moment region and slight bridge stiffness degradation were observed after each load case. Significant enhancement in the bridge stiffness was observed after installation of the overlays. Also, the overlay with synthetic fibers showed better crack bridging action than the overlay with steel fibers.
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Acknowledgments
This study is funded by a contract awarded to the University of Illinois at Chicago (UIC) by Modjeski and Masters, Inc. Their financial support is gratefully acknowledged. Thanks are due to Jeff Krozel, Prairie Materials, for supplying the MSC. Thanks are also due to Gary Vandenbroucke, Henry Frerk Sons, Inc., for supplying the LMC. Thanks are due to Dan Garreffa, Illinois Cement Company, for his continuous support. Thanks are also due to the technical support of M. Basrawi and G. Basraoui and graduate students for their valuable contributions.
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Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 12 • Issue 4 • July 2007
Pages: 419 - 428
Copyright
© 2007 ASCE.
History
Received: Apr 14, 2006
Accepted: Jun 9, 2006
Published online: Jul 1, 2007
Published in print: Jul 2007
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