Abandoned　concrete　in　coastal　areas　were　corroded　by　chloride　ions.　In　order　to　better　recycle　the　concrete　corroded　by　chloride　ions,　and　explore　the　corrosion　properties　of　reinforcement　in　recycled　aggregate　concrete　with　chloride　salt　in　original　concrete.　Here　15　groups　of　concrete　were　designed　with　the　types　and　contents　of　mineral　admixtures　and　aggregate　strengthening　as　variables.　After　accelerated　corrosion　by　electrification,　the　steel　reinforcement　electrochemical　indexes　were　measured　by　linear　polarization　method　and　electrochemical　impedance　spectroscopy　method　of　electrochemical　work.　The　results　show　that　the　corrosion　process　of　steel　reinforcement　in　chlorine-containing　recycled　aggregate　concrete　is　faster　than　that　in　ordinary　recycled　concrete.　Both　nano-SiO2　solution　strengthening　recycled　aggregate　and　adding　mineral　admixtures　can　commonly　improve　the　corrosion　resistance　of　recycled　concrete　with　chloride　salt　in　original　concrete.　And　by　strengthening　and　modifying,　the　corrosion　resistance　of　chloride　containing　recycled　aggregate　concrete　can　not　lower　than　that　of　ordinary　recycled　aggregate　concrete　without　chlorine.　©　2024　Cailiao　Daobaoshe/　Materials　Review.　All　rights　reserved.