Corrosion Evaluation of Post-Tensioned Tendons Embedded in Concrete Bridges
| 项目名称： | Corrosion Evaluation of Post-Tensioned Tendons Embedded in Concrete Bridges |
| 摘要： | The Coatings and Corrosion Laboratory at Turner-Fairbank Highway Research Center of Federal Highway Administration launched an in-house corrosion study addressing a very critical durability issue related to post-tensioned concrete bridges. Currently, there are no effective non-destructive corrosion detection techniques to diagnose corrosion activities hidden inside post-tensioned tendons despite growing number of this type of bridge structures. Accelerated corrosion testing is being conducted with five 4-in. diameter and 7-10 ft. long field tendons and two mock-up laboratory specimens. Condition of the deteriorated tendon specimens will be assessed, in terms of section loss and extent of corrosion, by several experimental techniques such as Magnetic Flux Leakage (MFL) and other non destructive evaluation (NDE) methods. Reliable NDE technique(s) with accuracy and reproducibility will be identified in the end of the study. |
| 状态： | Active |
| 资金： | 0.00 |
| 资助组织： | Federal Highway Administration |
| 项目负责人： | Lee, Seung-Kyoung |
| 执行机构： | Federal Highway Administration |
| 开始时间： | 20080505 |
| 实际结束时间： | 20110429 |
| 主题领域： | Bridges and other structures；Highways |
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