The　combination　of　environmentally　friendly　large　rupture　strain　fiber-reinforced　polymers　(LRS　FRPs)　and　recycled　fine　and　coarse　aggregates　presents　a　promising　alternative　to　overcome　the　scarcity　of　natural　river　sand　and　natural　gravels.　Recycled　aggregate　concrete　(RAC)　can　obtain　sufficient　ductility　and　strength　by　the　confinement　of　LRS　FRPs,　and　these　two　green　materials　are　particularly　suited　to　sustainable　construction.　However,　existing　research　on　LRS　FRP-confined　RAC　is　very　limited　and　primarily　focused　on　small-scale　specimens.　The　objective　of　this　paper　is　to　investigate　the　axial　compression　performance　of　large-scale　steel-reinforced　RAC　square　columns　wrapped　with　LRS　FRP　and　promote　the　practical　application　of　this　sustainable　structural　system.　The　experimental　variables　include　the　effective　confinement　stiffness　ratio　(ρk,eff)　and　the　type　of　LRS　FRP　(i.e.,　polyethylene　naphthalate　(PEN)　FRP　and　polyethylene　terephthalate　(PET)　FRP).　Test　results　showed　that　the　application　of　RAC　had　a　negligible　effect　on　the　axial　compression　behavior　of　large-scale　LRS　FRP-confined　square　columns.　The　behavior　of　the　test　columns　was　primarily　influenced　by　ρk,eff.　Finally,　evaluations　were　conducted　on　the　existing　models　of　LRS　FRP-confined　concrete　with　square　cross-sections,　based　on　the　compilation　of　available　test　results　from　large-scale　specimens.　©　2024　Elsevier　Ltd