In this paper, the mechanism of self-healing of concrete cracks by permeation crystallization method is briefly expounded, and a reaction mechanism of cyclic complexation crystallization/crack self-healing reaction is proposed, and the repair effect of permeable crystalline composites on concrete cracks is further studied, and the self-healing mechanism of permeable crystalline ...

Microcracks in the cementitious matrix are difficult to detect and repair until they appear on the surface. The binder in the microcapsule can repair the internal microcracks in a short period of time, and shows good repair effect in improving the strength and pore structure of the cementitious matrix, but the repair effect is not good for secondary cracking and surface cracks. ...