AbstractAbout AuthorsReferences
The analysis of scientific, technical and normative literature on the use of shotcrete shows that focusing on high strength and water tightness, the authors state that the shotcrete has high corrosion resistance. The presented test results do not always confirm this position. Insufficient study of the corrosion properties of shotcrete limits the scope of its application not only for concreting new structures, but also for repair work. For the use of shotcrete as a protection of reinforced concrete structures against aggressive impacts of the environment, data on its sulfate resistance and diffusion permeability for chlorides as the most aggressive media are required. On the basis of the performed studies of shotcrete in sulfate and chloride media, the normalized parameters of shotcrete of increased corrosion resistance were determined. The data obtained make it possible to consider shotcrete as an effective protection of concrete and reinforced concrete structures against corrosion in sulfate and chloride media
V.F. STEPANOVA1 , Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
N.К. ROZENTAL1 , Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
G.V. CHEKHNIY1 , Candidate of Scinces (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.);
S.M. BAEV2 , General Director (This email address is being protected from spambots. You need JavaScript enabled to view it.)
N.К. ROZENTAL1 , Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
G.V. CHEKHNIY1 , Candidate of Scinces (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.);
S.M. BAEV2 , General Director (This email address is being protected from spambots. You need JavaScript enabled to view it.)
1 Research, Design and Technological Institute for Concrete and Reinforced Concrete named after A.A. Gvozdev, “Research and Development Center “Stroitel’stvo” AO (6, 2-nd Institutskaya Street, Moscow, 109428, Russian Federation)
2 Structural Protection Service, ZAO (7, building 3, office 9, Kolskaya Street, Moscow, 129329, Russian Federation)
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2. Denisova A.P., Kostina O.D. Revival of shotcrete in construction. Resursoenergoeffektivnye tekhnologii v stroitel’nom komplekse regiona. 2011. No. 1, pp. 96–99. (In Russian)
3. Shvyrkov S.A., Petrov A.P., Nazarov V.P., Yur’ev Ya.I. Thermotechnical properties of concrete, shotcrete-concrete and shotcrete-fiber-reinforced concrete in conditions of hydrocarbon fire. Pozharovzryvobezopasnost’. 2016. Vol. 25. No. 12, pp. 5–12. (In Russian).
4. Ivashchenko Yu.V., Troncha L.A., Ryabukhin A.K. Development of an effective solution of a protective structure in difficult construction conditions. Scientific provision of the agro-industrial complex Collection of articles on the materials of the IX All-Russian Conference of Young Scientists. Krasnodar. 2016, pp. 793–794. (In Russian).
5. Melbye N., Dimmock R., Garshol K.F. Sprayed concrete for rock support. MBT International Underground Construction Group, Division of MBT Ltd. Switzerland. 2001. 247 p.
6. Moskvin V.M., Ivanov F.M., Alekseev S.N., Guzeev E.A. Korrozija betona i zhelezobetona. Metody ih zashhity. [Corrosion of concrete and reinforced concrete. Methods of their protection]. Moscow: Stroyizdat. 1980. 536 p.
7. Stark I., Wicht B. Dolgovechnost’ betona [Durability of concrete]. Kiev: Oranta. 2004. 295 p.
8. Rosental N.K. Korrozionnaja stojkost’ cementnyh betonov nizkoj i osobo nizkoj pronicaemosti [Corrosion resistance of cement concrete of low and particularly low permeability]. Moscow: FSUE CPP. 2006. 520 p.
9. Sheynfeld A.V. Organomineralic modifiers as a factor increasing the durability of reinforced concrete structures. Beton i zhelezobeton. 2014. No. 3, pp. 16–21. (In Russian).
10. Rosental N.K., Chehniy G.V., Lyubarskaya G.V. Concretes with water-reducing and sealing additives in sulfate and chloride media. Cement i ego primenenie. 2011. No. 1, pp. 106–110. (In Russian).
11. Patent RF 2269777. Sposob opredelenija diffuzionnoj pronicaemosti betona [Method for determining the diffusion permeability of concrete]. Rosental N.K., Chehniy G.V., Fedorov D.Yu.; Declared 31.05.2004. Published 10.02.2006. Bulletin No. 4. (In Russian).
For citation: Stepanova V.F., Rozental N.K., Chekhny G.V., Baev S.M. Determination of corrosion resistance of shotcrete as a protective coating of concrete and reinforced concrete structures. Stroitel’nye Materialy [Construction Materials]. 2018. No. 8, pp. 69–72. DOI: 10.31659/0585-430Х-2018-762-8-69-72 (In Russian).