BACKGROUND OF GEOPOLYMER-BASED CELLULAR CONCRETE PRODUCTION

Abstract

Geopolymer systems are currently quite promising among scientists in the field of building materials science in terms of free of cement binders and athermal synthesis materials due to a wide list of their positive properties that compete well with traditional analogs such as cement and cement concrete. The article provides a literary review of the current research and practical experience among Russian and foreign scientists on the issue of the synthesis of cellular concrete based on geopolymer. Based on a review analysis of modern publications in this field over the past 20-25 years, it has been shown that the key parameters that dominate the formation of a high-quality pore structure, as well as the thermophysical and mechanical properties of cellular geopolymer concrete are the following: choice and preparation of the main raw material, taking into account its chemical the nature and microstructure of the system, the type of modifying and pore-forming component, the sequence of introduction of components, the conditions and mode of hardening, the technology of pore formation, etc. As a result of analytical research, it was also revealed that, despite the rather large number of works devoted to obtaining cellular geopolymer systems, in general, today there is no deep understanding of the principles of formation and behavior of the pore structure during the operational period in geopolymer systems.