Condition Evaluation of Concrete Bridges Relative to Reinforcement Corrosion.Volume 1. State of the Art of Existing Methods

摘要

Volume 1 reviews and summarizes the existing methods and equipment for evaluatingthe condition of concrete bridge components. The purpose is to identify viable techniques that can be combined with the new techniques described in Volumes 2 through 7 of this report series in order to provide a 'toolbox' for an integrated approach to the condition assessment of concrete bridges (Volume 8 of this report series). This volume discusses methods for detection of damage resulting from corrosion of steel in concrete, poor quality or deteriorated concrete, and damage to prestressed/posttensioned tendons embedded in concrete. The discussion covers only the methods or procedures that are currently used for field evaluations. The discussion of each method includes any experiences with the method or procedure as reported in available literature sources and in interviews with state and provincial department of transportation inspection and maintenance personnel. An appendix summarizes comments from these engineers.