The influence of the energy potential of fiber on the structure and properties of foam concrete manufactured using single-stage technology

The relevance of the development of technology of dispersed reinforced foam concrete is briefly noted and the purpose of the work is formulated. Within the framework of clarifying the features of mass transfer occurring in foam concrete mixtures during the period of predominance of viscous bonds between the components of raw materials, the properties of foam films depending on the speed of phase transition, directions of movement of the liquid phase and affecting the quality of the macrostructure of hardened foam concrete are highlighted. A hypothesis is proposed to ensure the stability of the dispersed gas phase with the structure of foam concrete mixtures, which was confirmed during the experimental studies performed. The emergence of an electret energy potential on the surface of polypropylene fiber in the manufacture of foam concrete mixtures using single-stage technology has been scientifically substantiated. It is established that the magnitude of the electret effect depends on the consumption of fiber and has a positive effect on the technological and physico-mechanical properties of foam concrete.