Inhibitor protection of the steel reinforcement of armored concrete damaged by cracks.
In: Materials Science, Jg. 46 (2011-05-01), Heft 5, S. 573-582
Online
academicJournal
Zugriff:
For corrosion-electrochemical investigations, we have developed and manufactured original model concrete specimens-cells to identify testing conditions for six reinforcement specimens. We have studied the polarization characteristics of model specimens held in an environment of weak-acid rain, as well as the kinetics and frequency dependences of impedance characteristics. It has been established that, for the rust protection of steel reinforcement, an inhibiting mixture containing equal quantities of sodium molybdate and calcium nitrate is the most efficient. Its inhibiting efficiency is 10 to 12 times as high as the efficiencies of its components separately, which demonstrates the synergetic effect. The mechanism of the synergetic protective action of these inhibitors lies in passing two processes, which mutually strengthen each other, on the metal surface. The addition of inhibitor to the polyurethane injection composition, applied for the repair of armored concrete structures, increases the strength of adherence of reinforcement with concrete, subjected to the long-term action of a corrosive environment, as compared with noninhibited. Using the synergetic effect in developing inorganic inhibiting mixtures, one can reduce significantly the consumption of materials and improve substantially the manufacturability of injection polymeric compositions for the repair of armored concrete structures of long-term operation. [ABSTRACT FROM AUTHOR]
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Inhibitor protection of the steel reinforcement of armored concrete damaged by cracks.
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Autor/in / Beteiligte Person: | Pokhmurs'kyi, V. ; Marukha, V. ; Zin', I. ; Hnyp, I. ; Bilyi, L. |
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Zeitschrift: | Materials Science, Jg. 46 (2011-05-01), Heft 5, S. 573-582 |
Veröffentlichung: | 2011 |
Medientyp: | academicJournal |
ISSN: | 1068-820X (print) |
DOI: | 10.1007/s11003-011-9326-4 |
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