REVERSIBILITY AND MICROSTRUCTURE OF MnO2 REFERENCE ELECTRODES FOR MONITORING CORROSION IN CONCRETE STRUCTURES

摘要：

In this paper, the reversibility and microstructure of a novel manganese dioxide electrodebefore and after aging disposal were investigated. Characteristics of electrodepositedmanganese dioxide (EMD) reference electrodes were investigated by examining CyclicVoltammetry, SEM and EDAX in synthetic concrete pore solution after aging disposal in 1mol/L KOH solution or in distilled water. Results indicate that EMD reference electrodesshowed desirable stability and reversibility in synthetic concrete pore solutions at roomtemperature. Further analysis proved that the film deposited at 0.5 V was an amorphous gel-like product which indicated more dense and stable microstructure. Moreover EMD referenceelectrodes after proper aging disposal will obtain a stable mircostructure to resist thedisturbance of Na+ ions.

作者: Shuang Lu Hengjing Ba Yingzi Yang

作者单位: School of Civil Engineering,Harbin Institute of Technology,Harbin,China

会议类型: 国际会议

会议名称: 1st International Conference on Microstructure Related Durability of Cementitious Composites(首届与水泥基复合材料耐久性相关的微观结构国际会议)

会议地点: 南京

会议语种:英文

页码: 385-392

在线出版日期: 2008-10-13（万方平台首次上网日期，不代表论文的发表时间）