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Effect of dissolved oxygen on corrosion properties of reinforcing steel

机译：溶解氧对钢筋腐蚀性能的影响

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A series of electrochemical experiments were conducted to investigate the effect of dissolved oxygen, pH and Cl~- on the corrosion rate of reinforcing steel of geological disposal facility saturated with groundwater. It was found that the corrosion rate was proportional to the concentration of Cl~ and dissolved oxygen which are known as a corrosive agent and an electron acceptor, respectively. The pH level also strongly influenced the corrosion rate of the reinforcing steel. Under the pore water conditions of concrete structure of geological disposal facility, i.e. pH of 10-12 and dissolved oxygen of 1 mg L~(-1), the corrosion rate of reinforcing steel was determined to be in the range of ～10~(-8) to ～10~(-9) m/year. The corrosion rates were higher than those estimated from an empirical model based on the diffusion of dissolved oxygen.
机译：进行了一系列电化学实验，研究了溶解氧，pH和Cl〜-对地下水饱和的地质处置设施中钢筋腐蚀速率的影响。已发现腐蚀速率与分别被称为腐蚀剂和电子受体的Cl-和溶解氧的浓度成比例。 pH值也极大地影响了钢筋的腐蚀速率。在地质处置设施混凝土结构的孔隙水条件下，即pH值为10-12，溶解氧为1 mg L〜（-1），确定钢筋的腐蚀速率为〜10〜（ -8）至〜10〜（-9）m /年。腐蚀速率高于根据溶解氧扩散的经验模型估算的腐蚀速率。

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