In the present work, chopped carbon fibers (CFs) were incorporated into a CF-reinforced cementitious matrix (C-FRCM) and are considered to be an operative reinforcement material with a good compatibility with concrete. The interfacial bonding between the C-FRCM and concrete was evaluated by pull-off and double-shear tests. The pull-off and shear strengths of the C-FRCM with chopped CFs were enhanced under long-term polarization compared to those for matrixes without chopped CFs. The microstructure of the interface between the C-FRCM and concrete was characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The microanalyses showed that the presence of CFs retarded the degradation of the CF-reinforced plastic (CFRP) mesh, indicating that chopped CFs can serve as a secondary anode and form a three-dimensional conductive system, where the CFRP mesh serves as the main anode and can diffuse the polarization current, lessening the electrical degradation of the CFRP mesh.

在目前的工作中，将短切碳纤维（CFs）掺入CF增强水泥基（C-FRCM）中，并被认为是与混凝土具有良好相容性的有效增强材料。C-FRCM与混凝土之间的界面粘结通过拉拔和双剪切试验进行评估。与没有切碎CFs的基质相比，在短时极化下，具有切碎CFs的C-FRCM的抗拉强度和剪切强度得到了增强。C-FRCM和混凝土之间的界面的微观结构通过扫描电子显微镜（SEM）和X射线衍射（XRD）表征。微观分析表明，CF的存在阻碍了CF增强塑料（CFRP）网格的降解，表明切碎的CF可以充当次级阳极并形成三维导电系统，