The polarization resistance of REBAR in mortars is measured by a rapid, nondestructive electrochemical method, and the porosity of the mortars is also measured.

• 用电化学方法测定砂浆试件中钢筋的极化电阻，并测定了砂浆的孔隙率，结果发现：砂浆的孔隙率、孔径分布与钢筋极化电阻大小有良好的对应关系。