The results of experimental atmospheric corrosion tests carried out on weathering steel bridges. The effects of various design parameters on the corrosion are tested in this experimental program. The following local factors affecting the creation of corrosion products are pursued:
x influence of the position and location of a surface in the structure (typical surfaces are tested - upper and bottom flanges of main girders, webs of main girders, orthotropic bridge deck plate, etc.),
x influence of the surface exposure (directly and indirectly wetted surfaces),
x effects resulting from incorrect design, realization or neglected maintenance of structures (especially corrosion failures of surfaces exposed to leaking water)
Relationship between corrosion losses established in accordance with ISO 8407 and average thicknesses of corrosion products is also studied within this experimental program.
This attachment method provides tight contact between corrosion specimen and examined surface of the steel structure. The contact area between the pressure element and the corrosion specimen is minimal, so there is no influence in the development of corrosion products on the exposed surface and specimens copy the thermal inertia of