1 Department of Civil Engineering, Technical University of Denmark2 Section for Structural Engineering, Department of Civil Engineering, Technical University of Denmark3 Section for Construction Materials, Department of Civil Engineering, Technical University of Denmark4 Swiss Federal Laboratories for Materials Testing and Research
In this study, reinforced concrete specimens with and without mixed-in chlorides were conditioned at different relative humidities and subsequently subjected to varying temperatures. Results of the study confirmed that neither temperature nor moisture content have a major impact on the corrosion state and rate of passively corroding reinforcement. For actively corroding reinforcement, a temperature and moisture dependent corrosion rate was observed. The temperature dependency could be described by the Arrhenius equation with moisture dependent activation energies of approximately 10kJ/mol at 75% RH and 35–40kJ/mol above 85% RH.