Effects of Voids in Grouted, Post-Tensioned Concrete Bridge Construction

Project Description

Effects of Voids in Grouted, Post-Tensioned Concrete Bridge Construction Post-tensioned bridge systems provide many advantages for designers and constructors. However, recent investigations of post-tensioned concrete bridges have indicated a link between poor grout and/or voids and observed tendon corrosion. Because corrosion damage to post-tensioned tendons can result in high replacement costs, an evaluation of corrosion susceptibility and the impact of tendon corrosion on the performance of post-tensioned systems is needed. Guidelines are needed to identify cases when mitigation is necessary and to determine an appropriate timeline for mitigation so that localized tendon damage, and potential structural failure, can be avoided. This study defines a comprehensive approach to address the effect of voids in grouted, post-tensioned concrete bridge construction.

Project Publications

Effect of Voids in Grouted, Post-Tensioned Concrete Bridge Construction: Volume 1- Electrochemical Testing and Reliability Assessment 0-4588-1 (VOL1)

Effect of Voids in Grouted Post-Tensioned Concrete Bridge Construction: Inspection and Repair Manual for External Tendons in Segmental, Post-Tensioned Bridges 0-4588-2

Effect of Voids in Grouted, Post-Tensioned Concrete Bridge Construction 0-4588-S

Effect of Voids in Grouted, Post-Tensioned Concrete Bridge Construction: Seminar Slides 0-4588-P2

Effect of Voids in Grouted, Post-Tensioned Concrete Bridge Construction: Volume 2 - Inspection, Repair, Materials, and Risks 0-4588-1 (VOL-2)

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