SOIL ZINC CONTAMINATION FROM CORROSION OF GALVANIZED STRUCTURES |
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| Authors: | Gabriele Fava Romeo Fratesi Maria Letizia Ruello Daniela Sani |
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| Institution: |
a Department of Materials and Environmental Engineering and Physics, University of Ancona, Brecce Bianche - 60131 Ancona, Italy. |
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| Abstract: | The present work relates to galvanized structures with several years of time life subjected to atmospheric corrosion, like galvanized high tension steel pylons. The mass and fate of zinc released is evaluated both via empirical and experimental procedures. The corrosion rate determination requested atmospheric condition characterization, especially for SO 2 concentration and experimental activities focused on soil sampling around pylons. The soil zinc content, total and exchangeable, is determinates by different analytical procedures. The zinc diffusion in environment and the zinc extension under the top soil is evaluated using 1-dimensional mathematical model for miscible species in porous soil. |
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| Keywords: | Atmospheric Corrosion Galvanized Structures Zinc Risk Assessment Dgt Diffusive Sampler |
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