Research Status and Progress of Concrete Crack Self-Repairing Technology

This paper analyzes the causes of concrete cracks and discusses concrete self-healing techniques to solve concrete crack repair problems, i.e., self-healing by bacteria, self-healing by mineral admixtures, and self-healing by adhesives. Self-healing techniques can greatly reduce the economic and environmental costs of concrete production. This paper analyzes three specific self-healing methods and their advantages and disadvantages, and evaluates the effectiveness of the self-healing technology in dealing with concrete cracks, gives a method for evaluating the repair quality of cracks, and looks forward to the development prospect of the self-healing technology for concrete cracks.