Evaluation of Corrosion Protection Methods for Reinforced Concrete HighwayStructures

摘要

Since the 1970s, research projects and field studies have been conducted ondifferent methods for protecting reinforced concrete bridges from corrosion damage. The methods include alternative reinforcement and slab design, barrier methods, electrochemical methods, and corrosion inhibitors. Each method and its underlying principles are described, performance results of laboratory and/or field trials are reviewed, and systems are evaluated based on the results of the trials. Using performance results from the studies and costs obtained from transportation agencies, an economic analysis is used to estimate the cost of each system over a 75-year economic life using discount rates of 2, 4, and 6 percent.