APPLICATION OF METHODS OF CATASTROPHE THEORY IN THE TECHNOLOGY OF CONSTRUCTION COMPOSITE MATERIALS

It is known that construction composite materials (mortars and concretes based on mineral or organic cements, slips for making ceramics, coating compositions and many other such dispersions) may be approached as self-organizing systems, the evolution of which in time and space is accompanied by apparition of dissipative structures. Since most above-named systems are characterised by stick-slip phenomena conditioned by interruption of continuity in developing processes of various types, it is proposed to enrich the synergetic approach to studying structure formation particularities with methods of catastrophe theory, which is studying sudden qualitative system reformations resulting from smooth change of external conditions or internal properties. For a number of years, the author, under scientific guidance and with consultations of the chief of Laboratory of High Concentration Disperse Systems of the Institute of Physical Chemistry and Electrochemistry of the Russian Science Academy, member of the Russian Academy of Natural Sciences, Doctor of Chemistry N.B. Uriev, have been conducting research with aim of determining the consistent pattern of formation, stability and decomposition of structured disperse systems in heterogeneous chemical technological processes of making construction materials with predetermined structure and predictable performance indicators while reducing resource consumption for their production. Research program includes solution of tasks connected to description and analysis of such phenomena when increasing the intensity of technological treatment leads to qualitatively new system behaviour. Methodological base of research is the analysis of processes of disperse systems structure formation in dynamical and static conditions from the point of view of synergetics and catastrophe theory. Understanding the nature of dispersions abnormal rheological behaviour uncovers the possibility of implementation of optimal dynamic condition of the system and corresponding level of isotropic decomposition of the structure, which is the necessary condition for obtaining materials with requested properties. Therefore, the matter of informational interpretation of non-trivial viscosimetric data has practical importance for solving many material science tasks. Use of new ideas for disperse systems evolution under conditions of different technological operations let us raise physics-chemical processes modeling to the new level to create modern compositions.