Improvement of design methods and technology of concrete works (on the example of Sakhalin Island)
https://doi.org/10.31659/0005-9889-2022-610-2-30-34
Abstract
The methods of designing frost-resistant and high-frost-resistant concretes and technologies of concrete works used in the construction of port facilities on Sakhalin Island are given. Justifications for improving the design methods and technology of concrete works, taking into account the actual work of concrete construction, are presented. The analysis of the construction of port facilities on Sakhalin Island using traditional and modern technology of concrete works, revealed the advantages and disadvantages of traditional and modern technologies of concrete works. It is shown that on the basis of the principles of traditional technology of concrete works, it is possible to obtain high-resistance concretes for the structures of port facilities in conditions of frost exposure. The principles of modern technology, based on the use of additive-modifiers in concrete to improve the technological properties of the concrete mixture and improve the qualitative indicators of concrete, make it possible to increase frost resistance by two orders of magnitude. It is established that the observed destruction of concrete after the first winter season is associated with technological miscalculations that do not take into account the actual work of concrete in the structure. A comparative analysis of various concrete technologies, working conditions and its quality indicators in structures make it possible to establish the defining qualitative indicators of external influences and concrete, which it is advisable to take as a basis for improving concrete technology and formulating the concept of a concrete durability model in conditions of frost exposure.
About the Authors
V. V. Malyuk
Branch of the Central Research and Design Institute of the Ministry of Construction, Housing and Utilities of the Russian Federation, Far Eastern Research, Design and Technological Institute for Construction
Russian Federation
Russian Federation
Engineer
e-mail: mvv.77@mail.ru
V. D. Malyuk
Branch of the Central Research and Design Institute of the Ministry of Construction, Housing and Utilities of the Russian Federation, Far Eastern Research, Design and Technological Institute for Construction
Russian Federation
Russian Federation
Candidate of Sciences (Engineering)
S. N. Leonovich
Belarusian National Technical University; Qingdao University of Technology
Belarus
Belarus
Doctor of Sciences (Engineering), Foreign Academician of RAACS
e-mail: sleonovich@mail.ru
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For citations:
Malyuk V.V., Malyuk V.D., Leonovich S.N. Improvement of design methods and technology of concrete works (on the example of Sakhalin Island). Concrete and Reinforced Concrete. 2022;610(2):30-34. (In Russ.) https://doi.org/10.31659/0005-9889-2022-610-2-30-34
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