Durability study of concrete incorporating dredged sediments

•Evaluation of the performance and the durability of concrete blocks incorporating 12.5% and 20% of dredged sediments.•Characterizationof two marine sediment-based blocks using innovative non-destructive methods.•Assessment of the durability of concrete mixtures with performance tests (freeze/thaw and external sulfate attack).•Understanding of the impact of the sediment addition on the durability against damage caused by freeze/thaw cycles and external sulfate attack.•Success of valorization of marine sediments concrete.