A time-saving method to assess the efficiency of corrosion inhibitors by electro osmosis

作     者：Chun-lei Geng Duan Weng 

作者机构：Department of Materials Science and Engineering Tsinghua University Beijing 000 China Beijing Building Materials Academy of Sciences Research （State Key Laboratory） Beijing 100041 China 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2011年第18卷第3期

页      面：370-376页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 08[工学] 0806[工学-冶金工程] 082304[工学-载运工具运用工程] 0708[理学-地球物理学] 081402[工学-结构工程] 081304[工学-建筑技术科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 0813[工学-建筑学] 0814[工学-土木工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 0823[工学-交通运输工程] 

主　　题：reinforced concrete corrosion corrosion inhibitors corrosion protection 

摘      要：The corrosion inhibitor is one of the most important technologies to enhance the durability of steel-reinforced concrete. A kind of time-saving method was developed to assess the inhibitor efficiency by using a 32 V electric field to accelerate chloride ion migration in concrete. Potentiodynamic polarization scanning test was used to evaluate the corrosion states. The comprehensive efficiency of an inhibitor should be assessed in two aspects： resistance to chloride ion permeability and inhibiting efficiency. The specimens with different mixing amount of sodium nitrite and migration corrosion inhibitors were used to verify the accuracy and reliability of this method. The results show the differences in inhibiting efficiency of the inhibitors clearly, indicating the reliability of this time-saving method.