Influence of Alkaline Environment of Concrete on Epoxide Binders and Polymer-Composite Reinforcement

The stability of various types of epoxide binders (epoxy-anhydrate and epoxy-amine) for polymer-composite reinforcement (PCR) in the alkaline environment of the concrete (simulated with the help of water-cement suspension) at 23°C and 80°C has been studied. It is established that the sorption of water solution Ca(OH)₂ is accompanied by destruction of polymers and leads to the plasticization and, as a result, to the decrease in micro-hardness and to the increase in bending resistance. It is also established that epoxy-amine binders are more resistant to the alkaline environment than epoxy-anhydrate. Nano-modification of binders increases the stability of the PCR in the concrete and its durability.

V.G. KHOZIN, Doctor of Sciences (Engineering)
E.S. ZYKOVA, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.)
V.Kh. FAKHRUTDINOVA, Candidate of Sciences (Chemistry)
A.R. GIZDATULLIN, Engineer

Kazan State University of Architecture and Engineering (1, Zelenaya Street, 420043, Kazan, Russian Federation)

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