This　paper　experimentally　investigates　the　bond　strength　and　behavior　of　concrete-filled　steel　tube　columns　using　manufactured　sand　(MS-CFT).　A　total　of　54　push-out　tests　on　MS-CFT　columns　are　conducted.　The　test　parameters　are:　(i)　type　of　stone　that　was　used　to　manufacture　the　sand　(i.e.,　limestone　or　pebble),　(ii)　steel　tube　diameter-to-thickness　ratio,　(iii)　concrete　compressive　strength,　and　(iv)　stone　powder　content.　Results　from　the　tests　indicate　that:　(i)　MS-CFT　columns　have　higher　bond　strength　than　CFT　columns,　(ii)　the　bond　strength　of　MS-CFT　columns　increases　with　decreasing　steel　tube　diameter-to-thickness　ratios;　(iii)　MS-CFT　columns　using　limestone　to　manufacture　the　sand　have　slightly　higher　bond　strength　than　those　using　pebble　to　manufacture　the　sand;　(iv)　the　influence　of　the　concrete　compressive　strength　on　the　bond　strength　of　MS-CFT　columns　is　not　consistent;　and　(v)　the　bond　strength　of　MS-CFT　columns　is　slightly　influenced　by　the　stone　powder　content.　Idealized　bond　stress-slip　relationships　for　MS-CFT　columns　are　also　proposed.　The　proposed　relationships　reasonably　matched　the　experimental　bond　stress-slip　response　of　the　54　MS-CFT　columns.