Assessing corrosion mechanisms in Brazilian reinforced concrete bridges: Considerations on inspection procedures and detection techniques

摘要

This article presents general remarks on concrete bridge inspection, taking Brazilian examples to illustrate the concepts and ideas shown in this work. Brazilian bridges have a special role in the country's viary system, permitting the circulation of products and people. Despite its importance, many Brazilian bridges are not treated correctly when affected by corrosive processes. Many of these structures are built in reinforced concrete, although steel and wood bridges are also found. This work describes the most common damages caused by corrosion in Brazilian reinforced concrete bridges. The most relevant types of corrosion found in Brazilian structures are presented, followed by a discussion of the main inspection methods used for the detection of these corrosive processes, emphasising the importance of visual verifications. The inspection procedures presented are also useful for assessing defects in buildings and other concrete structures.