||Corrosion-Resistant Stainless Steel for Prestressed and Post-Tensioning Strands
Stephen R. Sharp
The purpose of this project is to confirm that stainless steel can be used as a replacement for traditional steel strands in bridge piles. The Virginia Department of Transportation (VDOT) and its research division, the Virginia Center for Transportation Innovation and Research (VCTIR), are placing carbon-fiber composite cable (CFCC) in 18 piles of a new bridge on the Nimmo Parkway over West Neck Creek in Virginia Beach. In addition, VDOT will use stainless-steel strands and spirals in several of the other piles. Upon completion of this study, VDOT will be able to use either corrosion-free (CFCC) or corrosion-resistant (stainless steel) strands in bridge piles where corrosion is a concern, such as concrete elements exposed to brackish water, saltwater or deicing salts. To assist VDOT in understanding how to deploy this material, VCTIR and the University of Virginia will conduct in-depth corrosion testing, comparing the performance of the stainless steel and uncoated strands.