原文传递
Cathodic Protection Developments for Prestressed Concrete Components; Final rept. 1991.12-1993.8
| 题名： | Cathodic Protection Developments for Prestressed Concrete Components; Final rept. 1991.12-1993.8 |
| 作者： | Funahashi, M.; Wagner, J.; Young, W. T. |
| 关键词： | Highway bridges; Prestressed concrete; Reinforcing steels; Cathodic protection; Corrosion; Hydrogen; Embrittlement; Salts; Feasibility |
| 摘要： | This is the final report in a study that evaluated the feasibility of using cathodic protection of prestressed concrete bridge members. The interim report (FHWA-RD-92-056), published in February 1993, presented laboratory data showing that cathodic protection will generate hydrogen on high-strength steel embedded in concrete if the potential is more negative than the thermodynamic hydrogen evolution potential. The hydrogen generated will enter the steel and will cause a loss in ductility that will adversely affect the steel's performance if a notch is present. In addition, conductive paints and polymers were evaluated as anode materials. |
| 总页数： | 133p |
| 报告类型： | 科技报告 |
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