Microbial self-healing of cement-based material cracks has gained extensive attention due to its great healing potential and environmental-friendly characteristics.In this paper,we systematically introduce the development of crack selfhealing of cement-based materials based on microorganism,the mechanism of microbial induced mineralization precipitation crystallization,induced mineralization yield and its influencing factors,immobilization of microorganism and determination of mineralization activity after immobilization,crack making method and self-healing condition,characterization method of selfhealing effect,crack self-healing effect,and the performance of microbial self-healing agent on cement-based materials.Meanwhile,we point out some main problems in the research of microbial self-healing cement-based materials and prospect its future,so as to provide reference for subsequent researchers to carry out related research.

cement-based materials  /  crack  /  microorganism  /  self-healing