A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effect of ECE in removing chlorides at free and bound ones in concrete contaminated with chlorides in cast and with penetrated chlorides
https://orcid.org/0000-0002-1438-2893
Abstract The present study concerned the effect of electrochemical chloride extraction (ECE) to chloride-contaminated concrete on chloride removal with incremental depths after the ECE at 1000 mA/m2 for 2, 4 and 8 weeks. The steel reinforcement was taken as an anode, while the titanium mesh as cathode. The chloride was extracted by diluting concrete dust sample in acid solution and still water for total and free chlorides, respectively. As a result, most free chlorides were removed from concrete at the increased current density, while bound chlorides were quite removed, presumably due to a reduction of the alkalinity of concrete.
Highlights A removal of chlorides at electrochemical chloride extraction was studied. Free chlorides were mostly removed under ECE except at near the surface. Bound chlorides were quite removed under ECE at all depths. The ECE lowered the alkalinity of inner concrete pore solution.
Effect of ECE in removing chlorides at free and bound ones in concrete contaminated with chlorides in cast and with penetrated chlorides
https://orcid.org/0000-0002-1438-2893
Abstract The present study concerned the effect of electrochemical chloride extraction (ECE) to chloride-contaminated concrete on chloride removal with incremental depths after the ECE at 1000 mA/m2 for 2, 4 and 8 weeks. The steel reinforcement was taken as an anode, while the titanium mesh as cathode. The chloride was extracted by diluting concrete dust sample in acid solution and still water for total and free chlorides, respectively. As a result, most free chlorides were removed from concrete at the increased current density, while bound chlorides were quite removed, presumably due to a reduction of the alkalinity of concrete.
Highlights A removal of chlorides at electrochemical chloride extraction was studied. Free chlorides were mostly removed under ECE except at near the surface. Bound chlorides were quite removed under ECE at all depths. The ECE lowered the alkalinity of inner concrete pore solution.
Effect of ECE in removing chlorides at free and bound ones in concrete contaminated with chlorides in cast and with penetrated chlorides
https://orcid.org/0000-0002-1438-2893
Abstract The present study concerned the effect of electrochemical chloride extraction (ECE) to chloride-contaminated concrete on chloride removal with incremental depths after the ECE at 1000 mA/m2 for 2, 4 and 8 weeks. The steel reinforcement was taken as an anode, while the titanium mesh as cathode. The chloride was extracted by diluting concrete dust sample in acid solution and still water for total and free chlorides, respectively. As a result, most free chlorides were removed from concrete at the increased current density, while bound chlorides were quite removed, presumably due to a reduction of the alkalinity of concrete.
Highlights A removal of chlorides at electrochemical chloride extraction was studied. Free chlorides were mostly removed under ECE except at near the surface. Bound chlorides were quite removed under ECE at all depths. The ECE lowered the alkalinity of inner concrete pore solution.
Effect of ECE in removing chlorides at free and bound ones in concrete contaminated with chlorides in cast and with penetrated chlorides
Ann, Ki Yong (author) / Kim, Jiseok (author) / Hwang, Woongik (author)
2023-12-05
Article (Journal)
Electronic Resource
English
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