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The contents of this report reflect the views of the author(s), who is responsible for the facts and the accuracy of the data presented herein. The contents do not necessarily reflect the official views or policies of the Virginia Department of Transportation, the Commonwealth Transportation Board, or the Federal Highway Administration. This report does not constitute a standard, specification, or regulation. Any inclusion of manufacturer names, trade names, or trademarks is for identification purposes only and is not to be considered an endorsement.

Title:

Health Monitoring of Post-Tension Tendons in Bridges
Authors:
Duke, John C.
Year: 2003
VTRC No.: 03-CR13
Abstract: Post-tensioned concrete has been used in a number of bridge structures and is expected to be used more in future construction in Virginia. This type of detail offers unique advantages for improving the performance of concrete members. Recent problems in the United Kingdom and Florida have increased concern over the condition of post-tensioned tendons in Virginia's bridges. There is a need for efficient, cost-effective methods of assessing and monitoring the condition of aging tendons in-situ. This study was carried out to survey the literature that addresses the condition of tendons to identify technology, perform a limited assessment of the feasibility of as many of the candidate technologies as possible, and consider follow-on efforts for development and application to post-tensioned tendons in Virginia in was described.