Abstract
Microbiological corrosion poses a serious danger to building structures in direct contact with an aquatic medium. The destruction of cement concrete during biocorrosion is determined by the processes of mass transfer. The article presents a physical and mathematical model of diffusion processes in the “cement concrete - biofilm - liquid” system. A model of mass transfer in an unbounded two-layer plate is calculated in the form of differential equations of parabolic type in partial derivatives. The author presents the results of the numerical experiment to study the influence of the mass conductivity and mass transfer on the kinetics and dynamics of the process. A numerical experiment has been carried out to illustrate the effect of similarity criteria on the intensity of the process of corrosive mass transfer.
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