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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.Almaz R. Shakirov, graduate student, Kazan State University of Architecture and Engineering, Kazan, Russian Federation E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Alfred M. Suleymanov, Doctor of Technical Sciences, Professor, Kazan State University of Architecture and Engineering, corr.-m. Academy of Sciences of the Republic of Tatarstan, Kazan, Russian Federation E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Title of the articleResearch of adhesive joints between concrete and carbon fiber on epoxy adhesives of various configurations
Abstract.The main problem in the strength study of adhesive joints between concrete and carbon fiber on epoxy adhesives is that in most cases the destruction occurs by the separation of concrete. Thus, it is not the strength of the adhesive layer itself that is being investigated, but the strength of concrete for separation. To study the durability of such joints, it is advisable to study their creep. The purpose of this work is to determine the most suitable type of sample for the creep test of an adhesive joint. The objectives of the study are: the development of types of samples with different configurations of adhesive joints, the determination of the samples strength, the study of the samples behavior under the influence of a constant creep load. Results. The results of the study showed that adhesive joints on samples with relatively small adhesive areas have a rather high rigidity in relation to the concrete substrate itself. The strength of the concrete part lags far behind the strength of the adhesive and carbon fiber itself. The rate of creep development on such samples is extremely low. Conclusions. The deformability of samples with a relatively small adhesive area does not allow their use to predict creep, since the rate of deformation development on these samples is extremely low, and the effect of temperature exposure is not significant. To study creep, the most suitable type of samples is a structurally similar sample – a reinforced concrete beam reinforced with an external reinforcement system made of carbon fiber.
Keywords.external reinforcement, reinforcement, carbon fiber, epoxy adhesive, creep
For citations:Shakirov A. R., Suleymanov A. M. Research of adhesive joints between concrete and carbon fiber on epoxy adhesives of various configurations // News KSUAE, 2023, № 4(66), p.8-16, DOI: 10.52409/20731523_2023_4_8, EDN: AIRICV


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