The focus of this work is to present test results on the bond of steel-mortar interface undergoing stray current. The bond strength, derived by pull-out tests, is correlated to the electrochemical response of the steel rebar and the properties of the mortar bulk matrix. The effects of curing regimes (in terms of duration of curing) and starting point of stray current are also investigated. It is found that stray current exerts bond degradation of the steel-mortar interface in all investigated cases, irrespective of the presence or absence of a corrodent (Cl⁻) in the external medium. For the ease of operation in lab tests, the stray current is generally simulated by anodic polarization, although fundamentally, the stray current effect on the steel surface is composed of both anodic and cathodic polarizations. Hence this work also differentiates the effects of stray current on steel-mortar bond, versus the effects of anodic polarization.

这项工作的重点是展示钢-砂浆界面在杂散电流下的结合试验结果。通过拉拔试验得出的粘合强度与钢筋的电化学响应和砂浆块体的特性相关。还研究了固化方案（在固化持续时间方面）和杂散电流起点的影响。发现在所有研究的情况下，杂散电流都会使钢-砂浆界面的结合退化，而不管是否存在腐蚀剂（Cl ^-) 在外部介质中。为便于实验室测试，杂散电流一般采用阳极极化来模拟，尽管从根本上说，杂散电流对钢表面的影响由阳极极化和阴极极化组成。因此，这项工作还区分了杂散电流对钢-砂浆结合的影响与阳极极化的影响。