The present study was initiated with the objective of increasing lifespan of concrete coastal structures exposed to chlorides. Two techniques were proposed: increasing the thickness of concrete cover or adding Carbon Fiber Reinforced Polymer (CFRP) sheets. A experimental program was conducted where 27 RC columns were exposed to variable sodium chloride ratios by weight “salt cement ratio" (s/c) (i.e. 3:100 “3%", 3:50 “6%" and 1:10 “10%"). The experimental results showed that the proposed techniques succeeded to improve the behavior of RC columns subjected to aggressive environments. This approach could probably extend the lifespan of concrete coastal structures.