INFLUENCE OF SURFACE CONDITIONS, INHIBITOR ON THE CHLORIDE THRESHOLD LEVEL FOR CORROSION OF STEEL IN A SIMULATED CONCRETE PORE SOLUTION

摘要：

The aim of this study is to evaluate the influence of steel surface conditions and anorganic inhibitor on the chloride threshold level for corrosion of steel in a concretecontaminated by chlorides. The corrosion of steel with two different surface conditions, i.e. amill scale and polishing treatment, has been simulated in a saturated Ca(OH)2 solutioncontaining different chloride concentration. N,N-dimethylaminoethanol (DMEA) has beenapplied as an amino-alcohol based inhibitor. The results concluded by electrochemicalimpedance spectra (EIS) indicate that, contrasted to the steel with a mill scale, the polishingsteel has an increasing chloride threshold value. However, the addition of the inhibitorexhibits little effect on the chloride threshold level for the steel corrosion in the saturatedCa(OH)2 solution, although it is effective to reduce the corrosion rate of the steel.

作者: Jinxia Xu Linhua Jiang

作者单位: Department of Materials Science and Engineering,Hohai University,Nanjing 210098,PR 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: 609-617

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）