Deterioration of marine concrete exposed to wetting-drying action

The adverse effects of hostile marine environment on concrete structure have inevitably resulted in huge economic loss and may contribute to catastrophic failure. Concrete is susceptible weathering, particularly under wetting-drying action (WDA), although its current state the art well established. diverse characteristics WDA at different site locations compromised reliability laboratory works. objective this study review impact provide an overview research trend, aiming identify gap. deterioration mechanisms respect are identified. influential factors analyzed. physical mechanical properties corrosion resistance exposed discussed. aggravates by hastening intrusion inimical compounds such as chloride, sulphate carbon dioxide. Chloride convection zone can be expanded two three times cause a significant cover loss. Physical damage starts with efflorescence staining, followed mortar delamination, aggregate detachment spalling, leading properties. use mineral admixtures fly ash silica fume improves against corrosion, but refining effect lead over-accumulation risking long-term durability. Limited works identified synergy between chemical deteriorations, validation simulated experiment, volume expansion, mass change tensile strength concrete.