Development of Corrosion Processes on Weathering Railway Bridge

This article presents the development of corrosion products and results of experimental atmospheric corrosion test on bearing structures of weathering steel railway bridge in Prague-Motol. This bridge structure is a part of long-term research project focused on development of corrosion processes at different structural elements of supporting structures. Measurements of corrosion losses and average thicknesses of corrosion products are carried out on selected surfaces of weathering steel structures. The article presents results of corrosion tests after one and three years of exposure of corrosion specimens. The results indicate a high degree of correlation dependence between measured average thickness of corrosion products and corrosion losses.