日本横滨国立大学工学部的朝仓祝治教授致力于不必破坏混凝土就能测定钢筋腐蚀程度的方法,该方法是检测钢筋的电阻.过去已经了解到金属表面腐蚀部分的电阻(极化电阻)和腐蚀速度成反比.利用这一点来测定混凝土中的钢筋腐蚀的速度.实验使用的试样是在直径5.5厘米、厚度3.5厘米的混凝土中埋设两根直径为0.6～ Prof. Asakoshi Asaka, Professor of Engineering, Yokohama National University, Japan, is committed to measuring the corrosion of steel bars without destroying the concrete. This method is to measure the resistance of steel bars. It has been known in the past that the resistance (polarization resistance) and corrosion of the eroded part of the metal surface. Velocity is inversely proportional. Use this to measure the rate of corrosion of steel bars in concrete. The experimental sample is to bury two diameters of 0.6-0.5 cm in a concrete with a thickness of 3.5 cm.