AbstractAbout AuthorsReferences
A brief review of regulating documents devoted to the maximum admissible content of chlorides in the concrete is presented. The calculation of chlorides quantity in the concrete at the maximum admissible content of chlorides in the initial materials is given. The calculation is made for two compositions of the concrete: with a low and high content of cement. It is shown that the critical content of chlorides, higher of which there is a danger of corrosion, depends on a large number of factors including the content of chlorides, mineralogical com- position of a clinker, content of alkalines, presence of mineral additives, water-cement ratio, conditions of concrete hardening. Due to the difficulty of determining the amount of free chlorides in the concrete, it is proposed to combine the determination of chlorides content with electro-chemical and corrosion tests of steel reinforcement in the concrete.
N.K. ROZENTAL, Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
V.F. STEPANOVA, Doctor of Sciences (Engineering),
G.V. CHEKHNY, Candidate of Sciences (Engineering)
V.F. STEPANOVA, Doctor of Sciences (Engineering),
G.V. CHEKHNY, Candidate of Sciences (Engineering)
JSC Research Center of Construction (6, 2 nd Institutskaya Street, Moscow, 109428, Russian Federation)
1. Smolyago G.A., Kryuchkov A.A., Drokin S.V., Dronov A.V. Research of aspects of chloride corrosion of steel concrete designs. Vestnik Belgorodskogo gosudarstvennogo tekhnologicheskogo universiteta im. V.G. Shukhova. 2014. No. 2, pp. 22–24. (In Russian).
2. Boltsoni F., Brenna A., Fumagalli G., Goydanich S., Lazzari L., Ormellez M., Pedeferri M. Corrosion inhibitors for steel concrete designs. Korroziya: materialy, zashchita. 2015. No. 2, pp. 14–27. (In Russian).
3. Leonovich S.N., Stepanova A.V. Modeling of chloride aggression on high-quality concrete for providing estimated useful life. Sistemnye tekhnologii. 2016. No. 2 (19), pp. 75–85. (In Russian).
4. Ivannikov V.V., Nikolaev A.G., Schwartz V.M., Ryabov O.B., Stepanov V.N. Corrosion of an armature in concrete goods. Khimicheskaya tekhnika. 2015. No. 1, pp. 10. (In Russian).
5. Ratkin V.V., Kokodeev A.V. Model of impact of the hloridsoderzhashchy environment on a steel concrete beam of a flying structure of the bridge. Resursoenergoeffektivnye tekhnologii v stroitel’nom komplekse regiona. 2015. T. 2. No. 6, pp. 103–106. (In Russian).
6. Morozov N.M., Krasinikova N.M., Borovskikh I.V. The factors influencing destruction of concrete of road plates. Inzhenerno-stroitel’nyi zhurnal. 2015. No. 7 (59), pp. 30–38. (In Russian).
7. Ovchinnikov I.I., Chen T., Ovchinnikov I.G. Probabilistic modeling of a steel concrete pile in case of combined action of loading and the hloridsoderzhashchy environment. Regional’naya arkhitektura i stroitel’stvo. 2016. No. 4 (29), pp. 55–61. (In Russian).
8. Alekseev S.N., Ratinov V.B., Rosenthal N.K., Kashurnikov N.M. Ingibitory korrozii stali v zhelezobetonnykh konstruktsiyakh [Inhibitors of corrosion became in steel concrete designs]. Moscow: Stroyizdat, 1985. 272 p.
9. Rosenthal N.K. Korrozionnaya stoikost’ tsementnykh betonov nizkoi i osobo nizkoi pronitsaemosti [Corrosion resistance of cement concrete of low and especially low permeability]. Moscow: FGUP TsPP, 2006. 520 p.
10. Richartz W. Die Bindung von Chlorid bei der Zementerhärtung. Zement-Kalk-Gips. 1979. Vol. 22, pp. 10–12.
11. Gouda K., Mourad H. Galvanic cells encountered in the corrosion of steel reinforcement. Differential salt concentration cells. Corrosion Science. 1975. V. 15, pp. 112–115.
12. Hausman D.A. Corrosion of steel in concrete. Materials protection. 1967.V.6 No. 19, pp. 370.
2. Boltsoni F., Brenna A., Fumagalli G., Goydanich S., Lazzari L., Ormellez M., Pedeferri M. Corrosion inhibitors for steel concrete designs. Korroziya: materialy, zashchita. 2015. No. 2, pp. 14–27. (In Russian).
3. Leonovich S.N., Stepanova A.V. Modeling of chloride aggression on high-quality concrete for providing estimated useful life. Sistemnye tekhnologii. 2016. No. 2 (19), pp. 75–85. (In Russian).
4. Ivannikov V.V., Nikolaev A.G., Schwartz V.M., Ryabov O.B., Stepanov V.N. Corrosion of an armature in concrete goods. Khimicheskaya tekhnika. 2015. No. 1, pp. 10. (In Russian).
5. Ratkin V.V., Kokodeev A.V. Model of impact of the hloridsoderzhashchy environment on a steel concrete beam of a flying structure of the bridge. Resursoenergoeffektivnye tekhnologii v stroitel’nom komplekse regiona. 2015. T. 2. No. 6, pp. 103–106. (In Russian).
6. Morozov N.M., Krasinikova N.M., Borovskikh I.V. The factors influencing destruction of concrete of road plates. Inzhenerno-stroitel’nyi zhurnal. 2015. No. 7 (59), pp. 30–38. (In Russian).
7. Ovchinnikov I.I., Chen T., Ovchinnikov I.G. Probabilistic modeling of a steel concrete pile in case of combined action of loading and the hloridsoderzhashchy environment. Regional’naya arkhitektura i stroitel’stvo. 2016. No. 4 (29), pp. 55–61. (In Russian).
8. Alekseev S.N., Ratinov V.B., Rosenthal N.K., Kashurnikov N.M. Ingibitory korrozii stali v zhelezobetonnykh konstruktsiyakh [Inhibitors of corrosion became in steel concrete designs]. Moscow: Stroyizdat, 1985. 272 p.
9. Rosenthal N.K. Korrozionnaya stoikost’ tsementnykh betonov nizkoi i osobo nizkoi pronitsaemosti [Corrosion resistance of cement concrete of low and especially low permeability]. Moscow: FGUP TsPP, 2006. 520 p.
10. Richartz W. Die Bindung von Chlorid bei der Zementerhärtung. Zement-Kalk-Gips. 1979. Vol. 22, pp. 10–12.
11. Gouda K., Mourad H. Galvanic cells encountered in the corrosion of steel reinforcement. Differential salt concentration cells. Corrosion Science. 1975. V. 15, pp. 112–115.
12. Hausman D.A. Corrosion of steel in concrete. Materials protection. 1967.V.6 No. 19, pp. 370.
For citation: Rozental N.K., Stepanova V.F., Chekhny G.V. About maximum admissible content of chlorides in concrete. Stroitel’nye Materialy [Construction materials]. 2017. No. 1–2, pp. 82–85. DOI: https://doi.org/10.31659/0585-430X-2017-745-1-2-82-85. (In Russian).