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- W177844721 abstract "This article addresses locating failures in the grouting of posttensioned bridges in the U.S. The need for such an investigation is highlighted by the failure of the bridge along Interstate 35W in Minneapolis, Minnesota. Upon a routine inspection of the Varina-Enon Bridge near Richmond, Virginia, inspectors discovered that one of the bridge’s posttensioned tendons had been severely corroded. The bridge’s posttensioned segments were comprised of precast concrete with draped steel tendons encased in plastic tube housing. This housing was flooded with portland cement grouting in order to prevent corrosion. This practice was common until two failures were detected in Florida’s Mid-Bay Bridge and the Sunshine Skyway Bridge. In these cases, the tendons were found to have housing that was filled with concrete It was found that water in the portland cement would seep into the steel, causing corrosion. The failed tendon’s replacement is also discussed." @default.
- W177844721 created "2016-06-24" @default.
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- W177844721 date "2007-11-01" @default.
- W177844721 modified "2023-09-26" @default.
- W177844721 title "Tendon Failure Raises Questions About Grout in Posttensioned Bridges" @default.
- W177844721 hasPublicationYear "2007" @default.
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