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- W2244580786 abstract "Corrosion and corrosion-related tendon failures have been disclosed on several segmental box girder bridges in Florida. One of these was the Mid-Bay Bridge near Destin where as many as 11 tendons were replaced. Corrosion of post-tensioned tendon is suspected in several other post-tensioned bridges. State departments of transportation have been interested in identifying the extent of corrosion problems and the time-to-criticality so they can plan and schedule rehabilitation. This paper discusses work on a post-tensioned bridge in the Midwest. The visual inspection of this bridge revealed (a) cracks on the riding deck, (b) active cracks on webs and diaphragms, (c) corrosion-related distress on the underside of the riding surface, and (c) voids along the tendons. Based upon field and laboratory corrosion investigations, tendon corrosion was present at select locations. The primary causes of tendon corrosion are compromised alkalinity of the grout and the presence of voids. The rate of corrosion measurements indicated that these tendons experience moderate to high corrosion rate. The rates of corrosion of tendons help define the time to a defined section loss. This information was used in determining the remaining structural capacity and identifying areas that require strengthening." @default.
- W2244580786 created "2016-06-24" @default.
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- W2244580786 date "2008-10-01" @default.
- W2244580786 modified "2023-09-28" @default.
- W2244580786 title "Corrosion Evaluation of Post-Tensioned Tendons in a Box Girder Bridge" @default.
- W2244580786 hasPublicationYear "2008" @default.
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