Concrete cracking process induced by steel corrosion- A review

The article reviews a number of empirical and analytical models to describe the cracking process of concrete induced by steel corrosion. The experimental study is a direct method to investigate the corrosion-induced concrete cracking. Based on the limited experimental data, generally the empirical models are the simple mathematical expressions and cannot be universally valid. Introducing the smear crack and considering the post-peak softening of concrete, the analytical models can describe the concrete cracking process of a thick-walled cylinder subjected to an internal uniform pressure due to steel corrosion. However, the current analytical is not yet able to handle the uneven corrosion situation and consider the influence of the external loading and stirrups. The further studied in this area are also identified.