Abstract Limestone calcined clay cement (LC3) concrete has attracted world-wide attention as a newly promising low-carbon concrete. In this study, long-term reinforcement corrosion in LC3 concrete was investigated. Both chloride and carbonation-induced reinforcing bar corrosion were examined. Open circuit corrosion potential, polarization resistance, Tafel constants were monitored at regular intervals up to 500 days. Gravimetric mass loss was measured and compared to the loss of mass calculated using electrochemical methods. The performance of concrete with flash calcined clay and limestone was similar to that of traditional Portland cement concrete in long-term investigation. Traditional corrosion methods and classifications used widely to assess of steel in concrete can be applied to concrete containing LC3 providing a recalibration of polarization resistance range for passitivity condition.

中文翻译：

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石灰石闪烧粘土水泥基混凝土的钢筋腐蚀

摘要 石灰石煅烧粘土水泥（LC3）混凝土作为一种新兴的低碳混凝土，受到了全世界的关注。在这项研究中，研究了 LC3 混凝土中的长期钢筋腐蚀。检查了氯化物和碳化引起的钢筋腐蚀。开路腐蚀电位、极化电阻、塔菲尔常数定期监测长达 500 天。测量重量质量损失并与使用电化学方法计算的质量损失进行比较。在长期调查中，闪烧粘土和石灰石混凝土的性能与传统硅酸盐水泥混凝土的性能相似。