ИССЛЕДОВАНИЕ ВЛИЯНИЯ ПОЛИМЕРНЫХ КОМПОНЕНТОВ НА КОРРОЗИОСТОЙКОСТЬ БЕТОНА

Abstract

Urgency of the research. In the manufacture of structures and structures of special purpose from concrete it is necessary to pay special attention to reducing the permeability of the surface layer of concrete. Target setting. The work is devoted to solving the problem of increasing the operational characteristics of concrete by introducing into the cement system active components that chemically interact with the minerals of cement. Actual scientific researches and issues analysis. Research scientists E. P. Alexandryan, R. A. Andrianova, Yu. M. Bazhenova, V. E. Basina, A. A. Berlin, S. S. Davydova, E. M. Elshina, F. M. Ivanova and others have made a great contribution to the development and development of the theory of creating materials based on polymeric binders, as well as methods for their modification. Uninvestigated parts of general matters defining. The use of traditional polymer compositions used in the repair of concrete structures not directly in contact with groundwater is not always possible under special conditions for the restoration of elements subject to watering. The difficulty consists in changing the properties of repair mixtures when they are injected into voids, cracks and fissures due to mass and heat transfer with confinement space. The research objective. It is necessary to search for new components of mixtures that ensure the preservation of technological characteristics in the course of work, as well as design operational properties. Attention should be paid to studying the regularities of the distribution of a waterproofing solution of variable viscosity with the device of an anti-filtration screen, taking into account the periods of loss of fluidity, and also the study of the strength and longevity of the strengthening, depending on the medium and temperature. The statement of basic materials. Increase the performance of concrete is possible due to the introduction of the cement system of the active components, chemically interacting with the minerals of cement. For the studies, carboxylate divinyl styrene latex BSK and diethylene glycol were chosen. Conclusions. When the complex modifier (diethylene glycol aero-silane and latex) interacts with cement particles, the structure and properties of the modifier undergo qualitative changes and the more significant the thinner the modifier films on the surface or between the surfaces of the cement and aerosil grains and the intensity of the polarization force. In connection with this, the volume of capillary-porous space that is estimated by the porosity and permeability of the forming cement matrix is gradually decreasing.