FIELD OBSERVATION WITH SEA SALT SPRAY IN A COAST ON WAVE-DISSIPATING CONCRETE BLOCKS

Abstract

 Sea salt spray consists of small particle of seawater, generated by interaction of wave, wind and coastal structures. Sea salt spray, which is transported by wind sticks to the surface of structures, harms long-term durability of the structures. In this study, field observation of sea salt spray from sea surface were carried out in the coast where the wave-dissipating concrete blocks were installed. From the results, it was shown that the amount of the sea salt spray from sea surface is related to the wave-dissipating concrete blocks installed in the coast. The increased amount of spray is estimated by classifying a locations of the wave-dissipating concrete blocks.