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Corrosion inhibitor systems for remedial treatment of reinforced concrete. Part 1: calcium nitrite
Laboratory investigations were performed to assess the efficacy of calcium nitrite as an inhibitor when used in surface treatments applied to reinforced concrete specimens that were chloride contaminated to varying extents in the presence or absence of carbonation. The corrosion responses of embedded steel bars at various depths of cover were monitored electrochemically during a controlled programme of cyclic wetting and drying undertaken for several months prior to the inhibitor treatment and for approximately 18 months thereafter. On completion of the exposure tests, measurements of corrosion weight losses and their distribution on the steel surfaces were also made. In non-carbonated specimens with high levels of internal chloride and carbonated specimens with even low levels of internal chloride, the surface-applied inhibitor treatment appeared to be ineffective under the conditions of the experiments and enhancement of local corrosion rates was observed in some specimens.
Corrosion inhibitor systems for remedial treatment of reinforced concrete. Part 1: calcium nitrite
Laboratory investigations were performed to assess the efficacy of calcium nitrite as an inhibitor when used in surface treatments applied to reinforced concrete specimens that were chloride contaminated to varying extents in the presence or absence of carbonation. The corrosion responses of embedded steel bars at various depths of cover were monitored electrochemically during a controlled programme of cyclic wetting and drying undertaken for several months prior to the inhibitor treatment and for approximately 18 months thereafter. On completion of the exposure tests, measurements of corrosion weight losses and their distribution on the steel surfaces were also made. In non-carbonated specimens with high levels of internal chloride and carbonated specimens with even low levels of internal chloride, the surface-applied inhibitor treatment appeared to be ineffective under the conditions of the experiments and enhancement of local corrosion rates was observed in some specimens.
Corrosion inhibitor systems for remedial treatment of reinforced concrete. Part 1: calcium nitrite
Korrosionsinhibitorsysteme zur Instandsetzung von bewehrtem Beton. Teil 1: Calciumnitrit
Ngala, V.T. (author) / Page, C.L. (author) / Page, M.M. (author)
Corrosion Science ; 43 ; 2073-2087
2001
15 Seiten, 11 Bilder, 1 Tabelle, 18 Quellen
Article (Journal)
English
Corrosion inhibitor systems for remedial treatment of reinforced concrete. Part 1: calcium nitrite
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British Library Online Contents | 2002
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