Bond durability between BFRP bars and seawater coral aggregate concrete under seawater corrosion environments

•Bond durability between BFRP bars and seawater coral aggregate concrete (CAC) under seawater environments was evaluated.•Seawater environment exposure weakened the bond strength of the specimens but strengthened their bond stiffness.•Increasing the exposure temperature accelerated the deterioration in bond characteristics.•The deterioration in the bond strength was related to the degradation in material strength.