SERVICE LIFE PREDICTION’S ALGORITHM: LOADING, CARBONIZATION, CHLORIDE AGRESSION

Authors

  • Evgeny Evgenievich Shalyi LLC "PrimorProjectBuro"
  • Sergej Nikolaevich Leonovich Belarusian National Technical University
  • Nelly Anatolyevna Budrevich Belarusian National Technical University

DOI:

https://doi.org/10.36773/1818-1112-2021-126-3-17-20

Keywords:

structure, concrete, corrosion, carbonation, chloride aggression

Abstract

Corrosion reinforcement marine hydraulic structures due to chloride aggression and carbonization of concrete leads to a sharp decrease in the
safety of the structure. The steel reinforcement will be subjected to a so-called depassivation process, once the chloride concentration on surface exceeds
a certain threshold concentration, or the pH value in the protective layer of concrete decreases to a threshold value due to carbonation. Electrochemical
reactions begin to occur with the formation of corrosion products with the penetration of oxygen on the steel reinforcement surface. This leads
to cracking of the protective layer of concrete. It should also be taken into account that, due to corrosion mechanisms, the cross-sectional area of the
reinforcement also decreases. The article suggests a method for predicting the complex degradation of reinforced concrete structures, taking into account
various mechanisms of corrosion wear, which will allow developing effective ways to improve the durability and maintainability of structures operated
in the marine environment.

Author Biographies

Evgeny Evgenievich Shalyi, LLC "PrimorProjectBuro"

Engineer, LLC "PrimorProjectBuro", Vladivostok, Primorsky Territory, Russian Federation.

Sergej Nikolaevich Leonovich, Belarusian National Technical University

Doctor of Technical Sciences, Professor, Dean of the Faculty of Civil Engineering, Belarusian National Technical University, Minsk, Belarus. Foreign academician of RAASN. Qingdao University of Technology China, Qingdao.

Nelly Anatolyevna Budrevich, Belarusian National Technical University

Engineer, Belarusian National Technical University, Minsk, Belarus.

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Published

2021-12-02

How to Cite

(1)
Shalyi, E. E.; Leonovich, S. N.; Budrevich, N. A. SERVICE LIFE PREDICTION’S ALGORITHM: LOADING, CARBONIZATION, CHLORIDE AGRESSION. Вестник БрГТУ 2021, 17-20.

Issue

No. 3(126) (2021): Vestnik of Brest State Technical University

Section

Civil and Environmental Engineering

License

Copyright (c) 2021 Brest State Technical University

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