Journal of Siberian Federal University. Engineering & Technologies / Application of Biological Substances to Increase the Strength of Materials and Structures

Full text (.pdf)
Issue
Journal of Siberian Federal University. Engineering & Technologies. 2024 17 (7)
Authors
Turakhujaeva, Shirinkhon N.; Turakhodjaeva, Fazilatkhon N.; Komolov, Khayriddin; Karimov, Kamolkhan A.; Turakhodjaev, Nodir J.; Obidov, Ziyodullo R.; Shohiyon, Almossho N.; Abduvaliev, Abdunabi M.
Contact information
Turakhujaeva, Shirinkhon N. : Turin Polytechnic University in Tashkent Tashkent, Republic of Uzbekistan; Turakhodjaeva, Fazilatkhon N. : Turin Polytechnic University in Tashkent Tashkent, Republic of Uzbekistan; Komolov, Khayriddin : Tashkent Medical Academy Tashkent, Republic of Uzbekistan; Karimov, Kamolkhan A. : Tashkent State Technical University named after I. A. Karimov Tashkent, Republic of Uzbekistan; Turakhodjaev, Nodir J. : Tashkent State Technical University named after I. A. Karimov Tashkent, Republic of Uzbekistan; Uzbek-Japan Innovation Center of Yors Tashkent, Republic of Uzbekistan; Obidov, Ziyodullo R.: Chemistry Institute named after V. I. Nikitin NAS of Tajikistan, Tajik Technical University named after academician M. S. Osimi Dushanbe, Republic of Tajikistan; ; ; Shohiyon, Almossho N.: Institute of Technology and Innovation Management in Kulyab Kulyab, Republic of Tajikistan; Abduvaliev, Abdunabi M. : Tashkent State Transport University Tashkent, Republic of Uzbekistan
Keywords
Bacillus pasteurii; concrete; urease; calcium carbonate; degradation; durability
Abstract

This article explores the innovative field of bioconcrete, where bacteria, specifically Bacillus pasteurii, are employed to enhance the strength and durability of concrete structures. The key mechanism involves the bacteria’s ability to produce urease, catalyzing the hydrolysis of urea into carbonate and ammonia. The resulting carbonate ions react with calcium ions in the concrete, forming calcium carbonate (calcite), which fills cracks and pores in the structure. This process not only contributes to increased strength but also provides bioconcrete with remarkable self-healing properties

Pages
910–917
EDN
BJCTSC
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/154212

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