Abstract
The bridge of this project is a reinforced concrete structure of 1980m divided in 40 spans. The deck is a single-cell box girder and a total width of 13m including sidewalks and shoulders. After 25 years in marine environment, the structure showed reinforcement corrosion, especially in piles and deck bottom.It was repaired with four types of intervention: conventional reparation with patches, corrosion inhibitors, cathodic protection with sacrificial anodes and an hybrid cathodic protection system with an initial impressed current and galvanic current. In this research it is described the refurbishment and comparative results of the evolution of the repairs and therefore data of the corrosion progression and its effect in service life. The hybrid system, by the moment, is the system with the best results.
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