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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Кayumov Rashit Abdulkhakovich doctor of physical and mathematical sciences, professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1 Kashafdinova Аlsu Faritovna engineer E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it LTD «Vostok-C» The organization address: 420111, Russia, Kazan, Moskovskaya st., 27
Title of the articleMethod of describing the degradation process of concrete constructions under the influence of salt corrosion
Abstract.Problem statement. Nowadays the actual problem is the development of theoretical methods of rating the durability of building constructions operating under the co-action of force factors and aggressive environments. The purpose of the research is to create the mathematical model describing the degradation process of concrete under the influence of salt solution allowing calculating the load capacity at different times and giving an estimate of the durability of the construction. Result. The task of diffusion of salt solution into concrete and a task of crystallization of this salt in the pores of concrete are considered. An example of processing of the result of the experiment to determine the liquid diffusion coefficient in concrete is given. The solution is carried out at finite differences of time and coordinates. The ratio is proposed in the form of a differential equation for determining the salt crystallization speed in pores of concrete and its solution. Shows the results of experiments to determine the durability of the samples exposed by the effect of salt solution for three and six months. An estimation of the effect of the crystallized salt weight in the pores of material on strength properties is presented. The dependence of concrete durability on the concentration of salt in it is approximated by the function that makes it possible to determine the value of durability at different points of the wall at a certain point of time. Conclusions. The significance of the results for the construction industry is the ability predict fall of load capacity of the concrete wall over time affected by the salt solution.
Keywords.concrete, durability, corrosion, degradation, salt.
For citations:Кayumov R.A., Kashafdinova А.F. Method of describing the degradation process of concrete constructions under the influence of salt corrosion // Izvestiya KGASU. 2018. №2(44) P.288--1.


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