Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
Add to Favorite Get Latest Update

Electrochemical Behavior of Reinforcing Steel Embedded in Fresh Concrete Mud

Zhang Lin; Wu Yinshun; Fang Zhi; Yao Yan; Tian Pei (Department of Surface Science and Corrosion Engineering, USTB, Beijing 100083, PRC) (China Building Materials Academy, Beijing 100024)  
The Potential vs time curves of reinforcing steels embedded in fresh concrete mud containing trace amount of Cl- have been measured by galvanostatic method with anodic current density of 50μA/cm2. The effect of 7 kinds of additives (water reduced agent, fast strengthening agent, inhibits solidifing agent and high performance water reduced agent, et al) on electrochemical behavior of the embedded steels in low concentration of Cl- has been investigated. The results show that the correct and effective testing method in the Standard JC 475-92 is proved,and trace amount of Cl- is detrimental to the passivity of the steel tendon embedded in concrete. The additives tested are beneficial to inhibition the breaking up of passive film by Cl- for reinforcing steels embedded in fresh concrete mud.
【Fund】: 冶金部腐蚀-磨蚀与表面技术开放实验室资助
【CateGory Index】: TG172.85
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved