A systematic data collection on chloride-induced steel corrosion in concrete to improve service life modelling and towards understanding corrosion initiation

While the critical chloride content for corrosion initiation in concrete, Ccrit, is a vital parameter for (probabilistic) service life modelling, little information is available on its statistical distribution. To close this gap, we present a comprehensive data collection of Ccrit measured on samples retrieved from various engineering structures. Additional detailed information about the structures (steel type, concrete properties, age, etc.) is systematically documented. This provides guidance to engineers performing service life modelling to select the statistical distribution of Ccrit as model input. Finally, the systematic documentation will allow identifying the dominant parameters influencing chloride-induced corrosion initiation in concrete.