Concrete cement is the most widely used building material applicable in road construction. Under real exploitation conditions concrete structures are subjected to different types of local destructions such as cracks which lead to the destruction of the roadway as a whole. In order to ensure the safety, stability and durability of the road coating, technology scheme for using ...

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 ...

Recycling of household waste containing thermoplastic PET can effectively solve the environmental problem of their disposal by producing a number of secondary products The use of secondary household waste recycling products has good prospects for wide application in construction, including for the construction of durable road coverings.

In order to develop an external additive suitable for multi-scenario coupled self-healing concrete and verify the feasibility of the theory, the finite element software ABAQUS was selected to verify the structure of the self-healing external additive, and the communication relationship between ABAQUS and the Python language script environment was obtained.

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. ...