▎ 摘　　要

The effects of graphene oxide (GO), notch depth, rebar and load on the resistivity of cement paste and mortar were investigated. The electrical conductivity of GO/cement reaches its largest value when the GO content is 0.03%, which is about 50% higher than that of the composite without GO. The resistivity of the GO/cement changes obviously with the load increasing from 0 to 40 kN. The gauge factor for compressive loading ranges from about 26 to 73 for different GO contents. The resistivity variation with the notch depth in GO/cement is much greater than that in the GO/ mortar reinforced by rebars. The findings of this work could contribute to further research on the design of self-sensing concrete in structural health monitoring.