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Numerical modelling of macrocells occurring during corrosion of steel in concrete
Author(s) -
Warkus J.,
Raupach M.
Publication year - 2008
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.200804164
Subject(s) - carbonation , corrosion , reinforcement , chloride , alkalinity , materials science , reinforced concrete , structural engineering , finite element method , boundary (topology) , metallurgy , composite material , engineering , chemistry , mathematics , mathematical analysis , organic chemistry
Reinforcement in concrete members is usually protected against corrosion by the alkalinity of the pore solution, but as a result of chloride ingress or carbonation (initiation stage) the reinforcing steel can be depassivated and corrosion can proceed (propagation stage). During the past few years numerous research activities have been carried out—mainly by laboratory experiments—to investigate reinforcement corrosion. Another approach, which will be presented within this paper, is given by using the finite or boundary element method. The results of the simulations will be compared to measurements and used to investigate the impact of single parameters.