Abstract Reinforced concrete with lower environmental footprint (lower CO2 emission) can be obtained by reducing the clinker content in the cements. As the carbonation of concrete is faster, corrosion of steel in carbonated concrete during the propagation phase is becoming important both for science and practice. The present literature review summarizes the state of the art, reporting corrosion rate data for a broad range of cement types, w/b ratios and environmental conditions. Correlations between corrosion rate and the main influencing parameters are elaborated and discussed. It confirms that the corrosion rate of steel in carbonated concrete is not under ohmic control. More important are the degree of pore saturation and the effective steel area in contact with water filled pores. It also emerges that the new blended cements have to be systematically studied with respect to the corrosion behavior of steel in carbonated concrete in order to make reliable service life prediction.

中文翻译：

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碳钢在碳化混凝土中的腐蚀率——批判性评论

摘要 通过降低水泥中的熟料含量，可以获得环境足迹更低（二氧化碳排放量更低）的钢筋混凝土。由于混凝土的碳化速度更快，在传播阶段碳化混凝土中钢的腐蚀对科学和实践都变得越来越重要。本文献综述总结了现有技术，报告了各种水泥类型、水灰比和环境条件的腐蚀速率数据。详细阐述和讨论了腐蚀速率与主要影响参数之间的相关性。它证实了碳酸盐混凝土中钢筋的腐蚀速率不受欧姆控制。更重要的是孔隙饱和度和与充满水的孔隙接触的有效钢面积。