Filtern
Erscheinungsjahr
- 2012 (3) (entfernen)
Dokumenttyp
- Beitrag zu einem Tagungsband (3) (entfernen)
Referierte Publikation
- nein (3)
Schlagworte
- Chloridinduzierte Korrosion (2)
- Instandsetzung (2)
- Kathodischer Korrosionsschutz (2)
- Stahlbeton (2)
- Ausbildung (1)
- Cathodic protection (1)
- Chloride migration (1)
- Concrete (1)
- Corrosion (1)
- Instandhaltung (1)
A joint research project was accomplished by ibac and BAM with the aim to develop a numerical model
of cathodic protection (CP) of reinforced concrete with a special focus on CP of the rear reinforcement
layer. The model was intended to include the effects of chemical alterations within the concrete and the
steel concrete interface, which are induced by long-term application of CP. The investigations presented
in this paper focus on the migration of chloride ions due to small electric fields as applied during cathodic
protection of steel in reinforced concrete structures and its impact on polarisation characteristics. A
comparatively new method, laser induced breakdown spectroscopy (LIBS), was used to determine
chloride profiles on laboratory specimens in order to investigate one of several model parameters to
describe cathodic protection of the rear reinforcement of reinforced concrete structures. These
investigations are described elsewhere, [1].
The paper focuses on long term polarisation tests and their impact on the charge depending cathodic
polarisation behaviour of laboratory specimens.