TY - GEN
T1 - DFG research group 537
T2 - 2nd International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR 2008
AU - Von Greve-Dierfeld, S.
AU - Gehlen, C.
AU - Menzel, K.
PY - 2009
Y1 - 2009
N2 - Corrosion of steel reinforcement in concrete is substantially governed by macro cell activity whereas the effective range of cathodic areas is strongly dependent on the electrolytic resistivity. As the corrosion rate depends on the effective cathode to anode area ratio, electrolytic resistivity influences the corrosion rate of anodic spots and must be one of the main parameters in modelling the corrosion process. This paper focuses on concrete resistivity only and is based on a series of measurements performed during the latest four years from exposure tests. Herein the factorial approach for calculating electrolytic resistivity will be introduced followed by the validation of a factorial approach for the probabilistic calculation of electrolytic resistivity. The factorial approach is one part of the corrosion model which predicts values in regard to corrosion current.
AB - Corrosion of steel reinforcement in concrete is substantially governed by macro cell activity whereas the effective range of cathodic areas is strongly dependent on the electrolytic resistivity. As the corrosion rate depends on the effective cathode to anode area ratio, electrolytic resistivity influences the corrosion rate of anodic spots and must be one of the main parameters in modelling the corrosion process. This paper focuses on concrete resistivity only and is based on a series of measurements performed during the latest four years from exposure tests. Herein the factorial approach for calculating electrolytic resistivity will be introduced followed by the validation of a factorial approach for the probabilistic calculation of electrolytic resistivity. The factorial approach is one part of the corrosion model which predicts values in regard to corrosion current.
UR - http://www.scopus.com/inward/record.url?scp=79952293158&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:79952293158
SN - 9780415468503
T3 - Concrete Repair, Rehabilitation and Retrofitting II - Proceedings of the 2nd International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR
SP - 179
EP - 180
BT - Concrete Repair, Rehabilitation and Retrofitting II - Proceedings of the 2nd International Conference on Concrete Repair, Rehabilitation and Retrofitting, ICCRRR
Y2 - 24 November 2008 through 26 November 2008
ER -