Ten different stainless steel grades have been exposed for two years along Swedish roads representing different geographical locations and climate, north, middle and south Sweden, de-icing frequency and traffic intensity. The test sites have covered open roadsides with cleaning in form of rainfall, shielded roadsides without rainfall, on bridges and in a tunnel. The results have been combined with other 2 years exposures in tunnels and on road bridges crossing electrified railways implying a need for grounding of railing posts to the rebar web. The discussion also includes examination of stainless steel components after use in tunnel environments, almost 12 years testing of lampposts, and the use of stainless steel for rebars. All tested stainless steels can be used independent of location for all covered applications if some superficial staining can be accepted, with the exception of tunnel environments where certain precautions might be required. It is also suggested that bridges are made of duplex stainless steel due to the large cost saving potential. A modification of EN ISO 12944-2 is proposed to facilitate selection of stainless steel for components along roadsides.


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    Title :

    Stainless steels in road environments


    Additional title:

    Nichtrostende Stähle unter Umweltbedingungen des Straßenverkehrs


    Contributors:


    Publication date :

    2007


    Size :

    14 Seiten, 8 Bilder, 5 Tabellen, 6 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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