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Trial Application of Electrochemical Chloride Extraction on Concrete Bridge Components in Virginia
| 题名： | Trial Application of Electrochemical Chloride Extraction on Concrete Bridge Components in Virginia |
| 作者： | Clemena, G. G.; Jackson, D. R. |
| 关键词： | Cathodic protection##Bridges(Structures)##Corrosion prevention##Virginia##Chlorides##Electrochemistry##Titanium##Wire cloth##Reinforced concrete##Bridge piers## |
| 摘要： | Electrochemical chloride extraction is a new technique for mitigating chloride-induced corrosion of the reinforcing bars in concrete bridges. To demonstrate the feasibility of applying this technique on full-sized concrete bridge members and to identify needed improvements to the technology, the technique was tried on two concrete deck spans and three concrete piers in Virginia. For the two deck spans, an anode system consisting of felt-sandwiched catalyzed titanium mesh kept wet by an electrolyte was used. An electrical charge of 741 to 1077 A-hr/sq m was applied between the anode and the steel bar for 57 or 58 days. Approximately 72 to 82 percent of the chloride ions was removed from the concrete at the depth of the first mat of steel bars. |
| 总页数： | 42 |
| 报告类型： | 科技报告 |
相关文献
- PILOT APPLICATIONS OF ELECTROCHEMICAL CHLORIDE EXTRACTION ON CONCRETE BRIDGE DECKS IN VIRGINIA.
- ELECTROCHEMICAL CHLORIDE EXTRACTION: INFLUENCE OF CONCRETE SURFACE ON TREATMENT.
- EFFECT OF ELECTROCHEMICAL CHLORIDE EXTRACTION ON CONCRETE PROPERTIES: INVESTIGATION OF FIELD CONCRETE.
- Use of Electro-Chemical Chloride Extraction and Associated Repairs to Extend the Beneficial Life of Reinforced Concrete.
- ELECTROCHEMICAL CHLORIDE REMOVAL AND PROTECTION OF CONCRETE BRIDGE COMPONENTS: FIELD TRIALS.
- ELECTROCHEMICAL CHLORIDE REMOVAL AND PROTECTION OF CONCRETE BRIDGE COMPONENTS: LABORATORY STUDIES.
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