Repassivation of Steel Rebars After an Electrochemical Chlorides Removal Treatment by Simultaneous Application of Calcium Nitrite
作者： M Sanchez , M C Alonso
DOI:
关键词: Cathode 、 Metallurgy 、 Nitrite 、 Anode 、 Electrochemistry 、 Materials science 、 Composite material 、 Corrosion 、 Rebar 、 Chloride 、 Calcium nitrite
摘要: The Electrochemical Removal of Chlorides (CE) can be proposed as a methodology for the treatment reinforced concrete structures affected by corrosion. This is based on temporary application an external voltage between anode located and rebar connected cathode. After treatment, extraction chloride from level repassivation are expected. migration ionic inhibitors to could considered during connection electric field favour regeneration passive film. In present work novel enhance efficiency Chloride Extraction simultaneous calcium nitrite. A fast reached after CE when inhibitor applied connection. penetration near surface has been confirmed by. new conditions steel were electrochemical measurements. was assured analysing nitrite dissolved into aqueous phase. presence promoted faster film that maintained in time.
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