Modelling sea-salt transport and deposition in marine atmosphere zone – A tool for corrosion studies

Abstract

Atmospheric corrosion of metals and corrosion of reinforcements in concrete structures are influenced by salt concentration of marine aerosol inland. This work presents a model that represents marine aerosol behaviour in marine atmosphere zone. The model has the distance from the sea and wind speed as the major variables and takes into account changes in marine aerosol due to settlement of salts when being transported inland. The proposed equations M = M 0 e ( v dep 0 / α h ) [ e ( - α x / v ) - 1 ] , D = D 0 e ( v dep 0 / α h ) [ e ( - α x / v ) - 1 ] show good consistency with literature data and well represent the results obtained. This model can be a useful tool to indicate the salinity level expected at different distances from sea in marine atmosphere zone.