Martynov V. Experimental-theoretical basics of specified-structure foam concrete with prognosed properties

The object of research is the structure and properties of cellular concrete, the solution component, physical models of materials of dense and macro-pore structure; the goal is the experimental and theoretical justification of improving the properties of foam concrete due to a directed change in the nature of the spatial distribution and internal structure of the solid ingredient by initiating the internal resources of self-organizing systems; methods - determination of physical and mechanical properties of foam concrete, binding and solution component that were carried out by standard methods. The study of the process of structure formation of materials of a dense and macro-pore structure was carried out on physical models and using specially developed software for computer modeling. To solve the problems of determining influence of prescription and technological factors on the mechanical-and-physical properties and optimizing the compositions, a nonhomogeneous continuum model is adopted. In this case, the studies were carried out using mathematical and statistical methods for planning experiments; results are the developed methods for quantifying the structural characteristics of matrix material and foam concrete (the length of the IIF, the strength of the equipotential field), that is the basis for the production of foam concrete with predetermined structure parameters and predicted properties. Structural diagrams of manufacturing foam concrete of non-autoclaved hardening with different means of "internal" and "external" activation and their complex application have been developed. A draft regulation for the production of non-autoclaved hardening foam concrete with an activated solution component has been developed. Consecutive sequence and methods of technical control of the production process and the quality of the foam concrete are proposed; it is adapted during producing of wall blocks of foam concrete.