Bond Performance of Corroded Steel Reinforcement and Recycled Coarse Aggregate Concrete after Freeze–Thaw Cycles

Freeze–thaw cycles and steel reinforcement corrosion can damage the properties of concrete structures in a frigid marine environment. In this paper, experimental analytical research on freeze–thaw resistance recycled coarse aggregate (RAC) bond performance corroded RAC after was conducted. The results showed that ultimate strength decreases with increasing rates, more rapidly under coupled effect corrosion. Additionally, quantitative analysis relationships between different rates conducted through relativity analysis, revealed have pronounced than A modified bond–slip prediction model established, exhibited better agreement test data other research, demonstrating its rationality applicability. These provide support for freeze–thaw-resistant design