Modeling the reinforcement corrosion process in reinforced concrete structure at the object of transport infrastructure
https://doi.org/10.17586/0021-3454-2023-66-6-483-488
Abstract
To predict the safe state of reinforced concrete structures at transport infrastructure facilities, information on directions of crack opening in such structures is of principle importance. The cracks appearance is due to formation and increase in the amount of hydrated iron oxide (iron hydroxide) on the reinforcing bars, that is, caused by corrosion processes. Particularly dangerous are cases when reinforced concrete structures are manufactured in violation of the requirements. The paper considers a case of using steel reinforcement pins of different diameters. The presented results of calculations obtained using mathematical modeling of the nonlinear behavior of corrosion processes and the resulting deformation and structural destruction of concrete show the model forms and direction of crack opening.
Keywords
reinforcement,
deformation,
reinforced concrete structure,
corrosion,
mathematical modeling,
Nernst–Planck equation,
crack,
physical and chemical reactions
Supporting agencies: The work was supported by the grant of the President of the Russian Federation No. MK-5323.2022.4.
About the Authors
A. G. Korobeynikov
ITMO University; Pushkov Institute of Terrestrial Magnetism, Ionosphere, and Radio Wave Propagation of the RAS, St. Petersburg Branch
Russian Federation
Russian Federation
Anatoly G. Korobeynikov — Dr. Sci., Professor; ITMO University, Faculty of Information Security and Computer Technologies; Professor; Pushkov Institute of Terrestrial Magnetism, Ionosphere, and Radio Wave Propagation of the RAS, St. Petersburg Branch; Deputy Director for Science.
St. Petersburg
V. L. Tkalich
ITMO University
Russian Federation
Russian Federation
Vera L. Tkalich — Dr. Sci., Professor; ITMO University, Faculty of Information Security and Computer Technologies; Associate Professor.
St. Petersburg
О. I. Pirozhnikova
ITMO University
Russian Federation
Russian Federation
Olga I. Pirozhnikova — PhD, Associate Professor; ITMO University, Faculty of Information Security and Computer Technologies; Associate Professor.
St. Petersburg
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Review
For citations:
Korobeynikov A.G., Tkalich V.L., Pirozhnikova О.I. Modeling the reinforcement corrosion process in reinforced concrete structure at the object of transport infrastructure. Journal of Instrument Engineering. 2023;66(6):483-488. (In Russ.) https://doi.org/10.17586/0021-3454-2023-66-6-483-488
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