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A platform for research: civil engineering, architecture and urbanism
Chloride induced reinforcement corrosion: Electrochemical monitoring of initiation stage and chloride threshold values
Reinforcement steel embedded in six different concrete mixes was exposed to chloride by wetting/drying cycles. Various parameters were continuously monitored during more than 1 year. Cement replacement with fly ash had beneficial long-term effects regarding chloride penetration resistance. Concerning corrosion performance, by far the most dominant influencing parameter was the steel/concrete interface since corrosion initiated on the lower side of the rebar (with respect to casting direction) regardless of binder type and water/binder (w/b) ratio. In many cases, after the first signs of depassivation, a marked increase in chloride content was required to prevent repassivation and to enable stable pit growth. Significant increase in chloride content was often needed to sustain stable pitting.
Chloride induced reinforcement corrosion: Electrochemical monitoring of initiation stage and chloride threshold values
Reinforcement steel embedded in six different concrete mixes was exposed to chloride by wetting/drying cycles. Various parameters were continuously monitored during more than 1 year. Cement replacement with fly ash had beneficial long-term effects regarding chloride penetration resistance. Concerning corrosion performance, by far the most dominant influencing parameter was the steel/concrete interface since corrosion initiated on the lower side of the rebar (with respect to casting direction) regardless of binder type and water/binder (w/b) ratio. In many cases, after the first signs of depassivation, a marked increase in chloride content was required to prevent repassivation and to enable stable pit growth. Significant increase in chloride content was often needed to sustain stable pitting.
Chloride induced reinforcement corrosion: Electrochemical monitoring of initiation stage and chloride threshold values
Chloridinduzierte Korrosion der Bewehrung: Elektrochemische Beobachtung des Anfangsstadiums und des Chloridgrenzwertes
Angst, Ueli M. (author) / Elsener, Bernhard (author) / Larsen, Claus K. (author) / Vennesland, Oystein (author)
Corrosion Science ; 53 ; 1451-1464
2011
14 Seiten, 12 Bilder, 6 Tabellen, 57 Quellen
Article (Journal)
English
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