Analysis of Phase and Structure Formation Processes During Hydration and Hardening of Composite Binders for 3D-Printing

Structure formation in cement systems is associated with a complex set of chemical, physical and chemical and physical-mechanical processes, the interaction of various dispersed phases among themselves and their joint interaction with the mixing water. The hardening period is characterized by a high rate of increase in strength of the structure in the beginning and attenuation in the later periods of structure formation. The structure of cement stone is coagulation-crystallization with predominance of crystallization structure. In the process of hardening, the strength ratio of the crystallization and coagulation structures continuously increases.