Change in the Chemical Composition and Strength of Wood that has been Used for a Long Time Under Water

Rocznik Ochrona Środowiska 2025, vol. 27, pp. 19-24

Alexander Chernykh¹ , Alexander Shkarovskiy^1,2 , Ivan Kudryavtsev¹ , Pavel Koval¹ , Shirali Mamedov¹ This email address is being protected from spambots. You need JavaScript enabled to view it.

	1. Saint Petersburg State University of Architecture and Civil Engineering, Russia 2. Koszalin University of Technology, Poland
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	https://doi.org/10.54740/ros.2025.003

The article shows the importance of analyzing old wood strength properties in restoration and monitoring the structure's condition. The issue of the characteristics of wooden structures destruction in the salty water of the Gulf of Finland is discussed. In particular, wood's physical and mechanical properties are analyzed during the long-term operation in water. The result of testing of small standard samples for different types of stress states is shown. Changes in the chemical composition of wood are identified. The change in the chemical composition of the material affecting its strength properties is described on the example of Fort Kronschlot crib foundation. It has been established that the process of diffusion, amplified by alternating wave loads, led to the washing of extractive substances, a decrease in potassium, and a lack of calcium in the cell walls of tracheids. The results of this research work may be useful in assessing the residual life of long-term wooden structures underwater and in predicting the restoration time for these structures more accurately.

mechanical properties of wood, long-term durability, chemical composition of wood, water-soluble extractive substances

AMA Style
Chernykh A, Shkarovskiy A, Kudryavtsev I, Koval P, Mamedov S. Change in the Chemical Composition and Strength of Wood that has been Used for a Long Time Under Water. Rocznik Ochrona Środowiska. 2025; 27. https://doi.org/10.54740/ros.2025.003

ACM Style
Chernykh, A., Shkarovskiy, A., Kudryavtsev, I., Koval, P., Mamedov, S. 2025. Change in the Chemical Composition and Strength of Wood that has been Used for a Long Time Under Water. Rocznik Ochrona Środowiska. 27. DOI:https://doi.org/10.54740/ros.2025.003

ACS Style
Chernykh, A.; Shkarovskiy, A.; Kudryavtsev, I.; Koval, P.; Mamedov, S. Change in the Chemical Composition and Strength of Wood that has been Used for a Long Time Under Water Rocznik Ochrona Środowiska 2025, 27, 19-24. https://doi.org/10.54740/ros.2025.003

APA Style
Chernykh, A., Shkarovskiy, A., Kudryavtsev, I., Koval, P., Mamedov, S. (2025). Change in the Chemical Composition and Strength of Wood that has been Used for a Long Time Under Water. Rocznik Ochrona Środowiska, 27, 19-24. https://doi.org/10.54740/ros.2025.003

ABNT Style
CHERNYKH, A.; SHKAROVSKIY, A.; KUDRYAVTSEV, I.; KOVAL, P.; MAMEDOV, S. Change in the Chemical Composition and Strength of Wood that has been Used for a Long Time Under Water. Rocznik Ochrona Środowiska, v. 27, p. 19-24, 2025. https://doi.org/10.54740/ros.2025.003

Chicago Style
Chernykh, Alexander, Shkarovskiy, Alexander, Kudryavtsev, Ivan, Koval, Pavel, Mamedov, Shirali. 2025. "Change in the Chemical Composition and Strength of Wood that has been Used for a Long Time Under Water". Rocznik Ochrona Środowiska 27, 19-24. https://doi.org/10.54740/ros.2025.003

Harvard Style
Chernykh, A., Shkarovskiy, A., Kudryavtsev, I., Koval, P., Mamedov, S. (2025) "Change in the Chemical Composition and Strength of Wood that has been Used for a Long Time Under Water", Rocznik Ochrona Środowiska, 27, pp. 19-24. doi:https://doi.org/10.54740/ros.2025.003

IEEE Style
A. Chernykh, A. Shkarovskiy, I. Kudryavtsev, P. Koval, S. Mamedov, "Change in the Chemical Composition and Strength of Wood that has been Used for a Long Time Under Water", RoczOchrSrod, vol 27, pp. 19-24. https://doi.org/10.54740/ros.2025.003