Ferroaluminate　cement　(FAC)　is　a　relatively　new　type　of　low-carbon　cement.　The　corrosion　performance　of　steel　reinforcement　embedded　in　FAC　concrete　is　critical　for　its　application　in　the　structure.　In　this　study,　the　corrosion　behaviors　of　steel　reinforcement　in　FAC　concrete　were　investigated　by　conducting　steel　corrosion　tests　and　chloride　penetration　tests　considering　the　effect　of　different　water-to-binder　(w/b)　ratios.　In　addition,　the　effect　of　substitution　rate　of　fly　ash　(FA)　and　granulated　ground　blast　furnace　slag　(GGBS)　for　FAC　on　the　corrosion　behavior　of　steel　reinforcement　was　also　investigated.　The　results　show　that　compared　to　ordinary　Portland　cement　concrete,　FAC　concrete　showed　much　better　corrosion　resistance　at　a　w/b　ratio　of　0.4　but　the　corrosion　resistance　reduced　significantly　at　a　high　w/b　ratio　of　0.56.　At　a　low　w/b　ratio,　the　abundant　hydration　products　in　FAC　reduced　its　porosity,　resulting　in　a　low　chloride　diffusivity　and　good　corrosion　resistance.　Incorporating　FA/GGBS　generally　reduced　the　corrosion　resistance　of　FAC　concrete.　The　dilution　of　FAC　cement　by　FA/GGBS　reduced　the　hydration　products　and　increased　the　porosity,　thus　increasing　the　chloride　diffusivity.　FAC　concrete　with　GGBS　showed　better　corrosion　resistance　than　that　of　FAC　concrete　with　FA　at　the　same　content.　©　2024　Elsevier　Ltd