Scientific Justification for Structural Modification of Foam Concrete Properties

The relevance of the development of the theory and practice of foam concrete, based on evolutionary changes in science and society, is reflected. A brief overview of the work confirming the possibility of improving their properties during dispersed reinforcement with fibers is given. The provision is made that the structural modification of foam concrete should be understood as technological and recipe techniques that ensure such use of the surface energy of dispersed raw materials, which is suitable for controlling the quality of mass transfer during the formation of its structure. The reasons that allow synthetic fibers to be effective initiators of mass transfer in non-autoclave foam concrete technology are listed. Scientific justification of these processes is given during homogenization of raw materials in turbulent mixers and during the period of predominance of viscous bonds between components of raw materials after placing of mixtures in formwork. A scientific analysis of the influence of mutually competing and mutually dependent mass transfer processes on the properties of foam concrete mixtures was performed, which makes it possible to predict the physical and mechanical properties of foam concrete depending on the formulation. The results of experimental evaluation of the effect of dispersed reinforcement of foam concrete mixtures by fibers on the rate of phase transition from viscous to solid and the physical and mechanical properties of foam concrete are given.

V.N. MORGUN, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)

Southern Federal University (105/42, Bolshaya Sadovaya Street, Rostov-on-Don, 344006, Russian Federation)

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