Program of experimental atmospheric corrosion tests of weathering steels

This article presents the program of experimental atmospheric corrosion test of weathering steels. This program is designed as a long-term project. Attention is paid to study of corrosion processes at different structural elements of supporting structures of bridges. Measurements of corrosion losses and average thicknesses of corrosion products are carried out within this experimental program. Protective ability of corrosion products is evaluated using X-ray diffraction analysis. The article presents results of corrosion tests after one year of exposure of corrosion specimens. It results from the tests that corrosion losses of weathering steels are signifi cantly conditioned by position and location of exposed surface within the structure.