摘要
应用交流导纳方法对混凝土中钢筋锈蚀过程的等效电路进行分析, 混凝土电阻,钢筋的钝化膜电阻、膜电容、极化电阻及扩散阻抗均可作为等效电路的元件参数来求得,并可得到钢筋钝化膜的厚度.从Nyquist图和导纳图可以直接测得所需参数,比直流的线性极化方法可得到更多的信息.
AC admittance method has been used to measure the polarization resistance Rp and resistance of concrete,the resistance and capacitance of the film on the rebar in the process of corrosion. The method is simple and accurate. An equivalent circuit has been used to explain the process of corrosion in the rebar of concrete.
出处
《腐蚀与防护》
CAS
1997年第3期23-25,共3页
Corrosion & Protection
基金
国家自然科学基金资助项目
