Corrosion resistance of grouted post-tensioning systems : [summary].

PDFBrief0-4562-SCorrosion resistancePosttensioningBridgesDurabilityStructural health monitoringSpecimensGroutTexasTexas. Dept. of TransportationBreen, John E.Kreger, Michael E.Kilduff, Andrew L.Moyer, Kevin L.McCool, Gregory E.Ahern, Michael E.Kalina, Ryan D.MacLean, SeanLuthi, TanyaIcaza, Juan J.Diephuis, Jeffrey R.Texas. Dept. of Transportation. Research and Technology Implementation OfficeUS Transportation CollectionThe increased popularity of post-tensioned bridge construction in the United States has led to concerns about corrosion and its impact on the life cycle of these bridges. Although the vast majority of post-tensioned bridges in the United States have performed satisfactorily, corrosion problems on a small number of bridges have raised concerns about the durability of these types of structures. Problems in coastal and deicing regions of the United States have highlighted the importance of controlling corrosion, including the use of new materials and construction methods. New materials have been produced by commercial manufacturers and are being used in post-tensioning systems. New construction methods have also been developed and include procedures recommended by the Post-Tensioning Institute (PTI)