Aiming at the status of freshwater and river sand resources shortage due to large-scale application of concrete structures,research progress and application of seawater-sea sand concrete at home and abroad were reviewed,including material properties of seawater and sea sand as well as hydration process of seawater-sea sand concrete cementitious materi-als,development of hydrated calcium silicate microstructure,mechanical properties,durability,and internal steel corrosion.Current research achievements of seawater-sea sand concrete were summarized and main shortcomings were analyzed.As a low-cost concrete material with rapid setting and hardening,poor durability,and easy corrosion of steel bars,future research focuses of seawater-sea sand concrete were pointed out to be formation of combined structure of seawater-sea sand concrete with fiber reinforced polymers,refinement of effects of different maintenance methods and conditions on seawater-sea sand concrete,and durability of seawater-sea sand concrete under real and complex conditions.
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