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GFRP Reinforced Corrosion-Free Bridge Deck Slabs Based on ISIS Winnipeg Principles

GFRP Reinforced Corrosion-Free Bridge Deck Slabs Based on ISIS Winnipeg Principles In places where deicing salts are used to keep roads free of ice, the bridge components most prone to corrosion are concrete deck slabs, which can be made corrosion-free by replacing the steel reinforcement by bars made of fibre reinforced polymer (FRP). Recent experimental investigation has shown that only the transverse bars at the bottom of the deck slab confine the slab for full arching action. The rest of the reinforcement in the two assemblies only controls the widths of environmental and fatigue-induced cracks. An experimental fatigue study on full-scale models of deck slabs showed that slabs with steel bars have the poorest fatigue resistance and slabs with glass fibre reinforced polymer (GFRP) bars the best. ISIS Canada conducted field studies in 2005 to show that the GFRP is not attacked by alkaline reaction in concrete. Because of this finding the Canadian Bridge Highway Bridge Design Code (CSA S06–06) permits GFRP as a primary reinforcement. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Advances in Structural Engineering SAGE

GFRP Reinforced Corrosion-Free Bridge Deck Slabs Based on ISIS Winnipeg Principles

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Publisher
SAGE
Copyright
© 2010 SAGE Publications
ISSN
1369-4332
eISSN
2048-4011
DOI
10.1260/1369-4332.13.5.773
Publisher site
See Article on Publisher Site

Abstract

In places where deicing salts are used to keep roads free of ice, the bridge components most prone to corrosion are concrete deck slabs, which can be made corrosion-free by replacing the steel reinforcement by bars made of fibre reinforced polymer (FRP). Recent experimental investigation has shown that only the transverse bars at the bottom of the deck slab confine the slab for full arching action. The rest of the reinforcement in the two assemblies only controls the widths of environmental and fatigue-induced cracks. An experimental fatigue study on full-scale models of deck slabs showed that slabs with steel bars have the poorest fatigue resistance and slabs with glass fibre reinforced polymer (GFRP) bars the best. ISIS Canada conducted field studies in 2005 to show that the GFRP is not attacked by alkaline reaction in concrete. Because of this finding the Canadian Bridge Highway Bridge Design Code (CSA S06–06) permits GFRP as a primary reinforcement.

Journal

Advances in Structural EngineeringSAGE

Published: Oct 1, 2010

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