Production and Transportation Processes of Sea Salt Spray around Coastal Structures and its Long-term Analysis

Sea salt spray, which is generated by coastal waves and transported by winds sticks to the surface of structures adjacent to coastal zone, harms long-terms durability of the structures, because salinity contained in the spray disintegrates the structural material. In this study, numerical simulation for long-term characteristics of production and transportation of sea salt spray are carried out. Field measurements are also conducted to confirm the validity of the numerical results. The comparison between adherent salt observed with PWRI (Doken) method and transported salt by numerical model shows possibility of empirical formula to estimate the long-term adhesion salt amount to the structures.