Assessment of the protective potential of reinforcing steel in low carbon footprint concrete using electrical resistance corrosion monitoring

The paper presents the results of testing the protective properties of low carbon footprint concrete subjected to an accelerated carbonation process using electrical resistance corrosion monitoring. It was found that a significant reduction in the content of Portland clinker in the composition of low-carbon cement compared to Portland cement CEM I increases the progress of carbonation in concrete and, consequently, reduces its protective properties towards carbon steel. It was also found that the depth of carbonation and protective properties towards steel in low carbon footprint concrete is determined not only by the content of Portland clinker in the cement composition, but also by the activity of the main non-clinker components used.