AbstractAbout the AuthorReferences
Capabilities of the developed physical-mathematical model of mass transfer in processes of the first type corrosion of cement blocks in the liquid-reservoir system in the presence of an internal source of mass in the solid phase are demonstrated. It is shown, as using the proposed model, it is possible to calculate profiles of concentrations of the free calcium hydroxide through the thickness of a concrete or reinforced concrete structure at any moment of time as well as to determine the content of solved calcium hydroxide in the liquid phase that, in the aggregate, makes it possible to monitor the process of mass transfer at the first type corrosion of concrete blocks. The conducted numerical experiment shows as similarity criteria (Fourier, Bio, Pomerantsev) influence on the intensity of the process of corrosion interaction of dynamics and kinetics within the wide range of parameters. In addition, the structural solution of a monolithic reinforced concrete reservoir for fire extinction is described. Results of the calculation of dimensionless concentrations of calcium hydroxide according to the thickness of the reservoir in the form of graphical dependences which make it possible to determine the service time of the tank are presented.
S.V. FEDOSOV, Doctor of Sciences (Engineering), Academician of RAACS,
V.E. RUMYANTSEVA, Doctor of Sciences (Engineering), Adviser of RAACS (This email address is being protected from spambots. You need JavaScript enabled to view it.),
I.V. KRASILNIKOV, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
S.A. LOGINOVA, Engineer Ivanovo State Polytechnical University (20, 8 Marta Street, Ivanovo, 153037, Russian Federation)
V.E. RUMYANTSEVA, Doctor of Sciences (Engineering), Adviser of RAACS (This email address is being protected from spambots. You need JavaScript enabled to view it.),
I.V. KRASILNIKOV, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
S.A. LOGINOVA, Engineer Ivanovo State Polytechnical University (20, 8 Marta Street, Ivanovo, 153037, Russian Federation)
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13. Fedosov S.V. Teplomassoperenos v tekhnologicheskikh protsessakh stroitel’noi industrii [Heat and mass transfer in technological processes of the construction industry]. Ivanovo: IPK PresSto, 2010. 364 p. (In Russian).
2. Polak A.F. Mathematical model of the process of corrosion of concrete in liquid media. Beton i zhelezobeton. 1988. No. 3, pp. 30–31. (In Russian).
3. Gusev B.V., Faivusovich A.S. Fiziko-matematicheskaya model’ protsessov korrozii armatury zhelezobetonnykh konstruktsii v agressivnykh sredakh. Teoriya. [A physicomathematical model of processes corrosion of reinforcement for reinforced concrete structures in aggressive environments. Theory.] Moscow: Nauchnyi mir. 2011. 56 p.
4. Rozental’ N.K. A new set of rules for the protection of building structures from corrosion. Proceedings of the first German-Russian conference “Innovative concrete technology”. Moscow. MUCE. 2012, pp. 6–8. (In Russian).
5. Fedosov S.V., Rumyantseva V.E., Khrunov V.A., Aksakovskaya L.N. Modeling of mass transfer in corrosion of concrete of the first type (the small values of the Fourier number. Stroitel’nye Materialy [Construction Materials]. 2007. No. 5, pp. 70–71. (In Russian).
6. Fedosov S.V., Rumyantseva V.E., Krasilnikov I.V., Kas’yanenko N.S. Theoretical and experimental studies of the processes to corrosions of the first type cement concrete with the availability of the internal source of the mass in the solid phase. Stroitel’nye Materialy [Construction Materials]. 2013. No. 6, pp. 44–47. (In Russian).
7. Fedosov S.V., Rumyantseva V.E., Krasilnikov I.V., Kas’yanenko N.S. Modeling of mass transfer in the corrosion processes of the first type of cement concrete in the «liquid—reservoir» system with the availability of the internal source of the mass in the solid phase. Vestnik grazhdanskikh inzhenerov. 2013. No. 2 (37), pp. 65–70. (In Russian).
8. Lykov A.V. Yavleniya perenosa v kapillyarno-poristykh telakh [Transport phenomena in capillary-porous bodies]. Moscow: Gostekhizdat. 1954. 296 p. (In Russian).
9. Fedosov S.V., Rumyantseva V.E., Krasilnikov I.V. Theoretical study of the influence of power internal source mass on process mass transfer in corrosion of the first kind of cement concrete. Academia. Arkhitektura i stroitel’stvo. 2014. No. 1, pp. 102–105. (In Russian).
10. Fedosov S.V., Akulova M.V., Koksharov S.A., Meteleva O.V. Theoretical fundamentals of heat and mass transfer in promising technologies of production of textile and construction materials industries. Izvestiya vysshikh uchebnykh zavedenii. Tekhnologiya tekstil’noi promyshlennosti. 2015. № 6 (360), pp. 170–175. (In Russian).
11. Matveeva N.Yu., Krasilnikov I.V., Peshcherova O.V., Matrunchik A.S. About structure of energy audit program in industry. Informatsionnaya sreda vuza. 2015. No. 1, pp. 436–443. (In Russian).
12. Aloyan R.M., Petrukhin A.B., Gruzintseva N.A. Trends and prospects of use of geotextiles in road construction. Izvestiya vysshikh uchebnykh zavedenii. Tekhnologiya tekstil’noi promyshlennosti. 2017. No. 2 (368), pp. 318–321. (In Russian).
13. Fedosov S.V. Teplomassoperenos v tekhnologicheskikh protsessakh stroitel’noi industrii [Heat and mass transfer in technological processes of the construction industry]. Ivanovo: IPK PresSto, 2010. 364 p. (In Russian).
For citation: Fedosov S.V., Rumyantseva V.E., Krasilnikov I.V., Loginova S.A. Study of effect of mass transfer processes on reliability and durability of reinforced concrete structures operating in liquid aggressive media. Stroitel’nye Materialy [Construction Materials]. 2017. No. 12, pp. 52–57. DOI: https://doi.org/10.31659/0585-430X-2017-755-12-52-57. (In Russian).