ЭКСПЕРИМЕНТАЛЬНОЕ ОПРЕДЕЛЕНИЕ ПОЛНЫХ ДЕФОРМАЦИЙ УСАДКИ ЖЕЛЕЗОБЕТОНА
ЭКСПЕРИМЕНТАЛЬНОЕ ОПРЕДЕЛЕНИЕ ПОЛНЫХ ДЕФОРМАЦИЙ УСАДКИ ЖЕЛЕЗОБЕТОНА
DOI:
https://doi.org/10.22337/2587-9618-2025-21-2-129-137Ключевые слова:
усадка, деформации усадки, железобетон, легкий бетон, керамзитобетон, керамзитожелезобетонАннотация
В статье предложен способ фиксирования полных деформаций усадки железобетонной призмы таким образом, чтобы было обеспечено измерение полных деформаций усадки на открытой грани не позднее, чем через три часа после бетонирования, с последующим контролем прироста деформаций по остальным граням призмы после ее распалубки. Объектом настоящего исследования являются усадочные деформации керамзитобетона и деформации продольной арматуры. По результатам проведенных исследований предложен новый способ экспериментального определения полных деформаций усадки железобетона, позволяющий обеспечить начало фиксирования деформаций усадки бетона, начиная с первых суток, и экспериментально подтверждена возможность реализации предложенного способа. Представлены перспективы дальнейших исследований.
Библиографические ссылки
Lazouski D.N., Tur V.V., Gluhov D.O., Lazouski Y.D. (2021) Uchet polzuchesti i usadki betona po SP 5.03.01-2020 pri raschete zhelezobetonnyh konstrukcij na osnove deformacionnoj raschetnoj modeli [Creep and shrinking of concrete accounting according to SP 5.03.01-2020 when analysis of reinforced concrete structures based on deformational analytical model]. Vestnik Brestskogo gosudarstvennogo tekhnicheskogo universiteta [Vestnik of the Brest State Technical University], vol. 2(125), pp. 7–12. doi:10.36773/1818-1212-2021-125-2-7-12. (In Russian)
Bazant Z.P. (2001) Prediction of concrete creep and shrinkage: past, present and future. Nu clear Engineering and Design, vol. 203, iss. 1, pp. 27–38. doi:10.1016/S0029-5493(00)00299-5.
Rzhevutskaya V.A. (2020) Shrinkage of expanded clay concrete: A review. AlfaBuild, vol. 15, iss. 3, 6 p. doi:10.34910/ALF.15.1.
Krivitskiy P., Shelest H., Nevdakh A., Sedlyr T. (2024) Fiziko-mekhanicheskie harakteristiki konstrukcionnogo keramzitobetona v praktike sovremennogo stroitel'stve [Physical and mechanical characteristics of structural expanded direction concrete in the practice of modern construction]. Vesnik Hrodzenskaha Dziarzhaunaha Universiteta Imia Ianki Kupaly. Seryia 6. Tekhnika [Bulletin of the Yanka Kupala Grodno State University. Series 6, Engineering], vol. 14, iss. 2, pp. 33–35. Available at: https://vesnik.grsu.by/?p=s6&lang=ru. (In Russian)
Bondarenko V.M., Suvorkin D.G. (1987) Reinforced concrete and stone structures. Vysshaya shkola [Higher education], 386 p. (In Russ.). Available at: https://gbk.kgasu.ru/images/stories/metodmat/BondarenkoSuvorkinGbiKamKonstr_1987.pdf.
Babich E.M. (1988) Konstrukcii iz legkih betonov na poristyh zapolnitelyah [Structures made of light concrete on porous aggregates]. Vysshaya shkola [Higher education], 207 p. Available at: https://knizhen-pazar.net/products/books/746359-konstruktsii-iz-legkih-betonov-na-porist-h-zapolnitelyah. (In Russian)
Bentur A., Igarashi Sh., Kovler K. (2001) Prevention of autogenous shrinkage in high-strength concrete by internal curing using wet lightweight aggregates. Cement and Concrete Research, vol. 31, pp. 1587–1591. Available at: doi:10.1016/S0008-8846(01)00608-1.
Zhuang Y., Zheng D., Zhen Ng., Ji T., Chen X. (2016) Effect of lightweight aggregate type on early-age autogenous shrinkage of concrete. Construction and Building Materials, vol. 120, pp. 373–381. doi:10.1016/j.conbuildmat.2016.05.105.
Clarke J.L. (2005) Structural lightweight aggregate concrete. Glasgow: Blackie Academic & Professional, an imprint of Chapman & Hall, 161 p.
Wendling A., Sadhasivam K., Floyd R.W. (2018) Creep and shrinkage of lightweight self-consolidating concrete for prestressed members. Construction Building Materials, vol. 167, pp. 205–215. doi:10.1016/j.conbuildmat.2018.02.017.
Maskalkova Y.G., Rzhevutskaya V.A. (2022) Compressive cylinder strength and deformability of expanded clay fiber-reinforced concrete with polypropylene fiber. International Journal for Computational Civil and Structural Engineering, vol. 18, iss. 2, pp. 31–42. doi:10.22337/2587-9618-2022-18-2-31-42.
Maskalkova Yu.G., Rzhevutskaya V.A. (2022) Size effect of cube specimen on strength of expanded clay fiber-reinforced concrete. Magazine of Civil Engineering, vol. 116, iss. 8, 18 p. doi:10.34910/MCE.116.12.
Semenyuk S., Maskalkova Yu., Rzhevutskaya V. (2020) Osobennosti opredeleniya stesnennoj usadki keramzitozhelezobetona [Features of determining restricted shrinkage of reinforced claydite-concrete]. Vestnik Polockogo gosudarstvennogo universiteta [Vestnik of the Polotsk State University], vol. 8, pp. 58–65. Available at: https://elib.psu.by/handle/123456789/25843. (In Russian)
Kuryatnikov Yu.Yu., Kochetkov R.S. Razrabotka matematicheskih modelej fiziko-mekhanicheskih svojstv modificirovannogo keramzitobetona [Development of mathematical models of physico-mechanical properties of modified expanded clay concrete]. Innovacii i modelirovanie v stroitel'nom materialovedenii [Innovations and modeling in building materials science], pp. 64–69. Available at: https://elib.tstu.tver.ru/MegaPro/Download/MObject/30794/001-000135274-000000000-0000-0000-01.pdf. (In Russian)
Suvorov I.O. (2016) Dispersnoe poliarmirovanie kak sposob snizheniya usadki fibropenobetona [Dispersed polyarming as a way to reduce shrinkage of fibropenocrete]. (PhD Thesis). S.-Petersburg: St. Petersburg State University of Architecture and Civil Engineering, 137 p. Available at: https://www.dissercat.com/content/dispersnoe-poliarmirovanie-kak-sposob-snizheniya-usadki-fibropenobetona/read. (In Russian)
Costa H., Júlio E., Lourenço J. (2012) New approach for shrinkage prediction of high-strength lightweight aggregate concrete. Constructions and Buildings materials, vol. 35, pp. 84–91. doi:10.1016/j.conbuildmat.2012.02.052.
Zhao H., Ma Y., Zhang J., Hu Zh., Li H., Wang Y., Liu J., Wang K. (2022) Effect of clay content on shrinkage of cementitious materials. Construction and Building Materials, vol. 157, 12 p. doi:10.1016/j.conbuildmat.2021.125959.
Zhao S., Li Ch., Zhao M., Zhang X. (2016) Experimental study on autogenous and drying shrinkage of steel fiber reinforced lightweight-aggregate concrete. Advances in Materials Science and Engineering, vol. 2016, 9 p. doi:10.1155/2016/2589383.
Gong J, Zeng W., Zhang W. (2018) Influence of shrinkage-reducing agent and polypropylene fiber on shrinkage of ceramsite concrete. Construction and Building Materials, vol. 159, pp. 155–163. doi:10.1016/j.conbuildmat.2017.10.064.
Hussein Z.M., Khalil W.I., Ahmed H.K. (2020) Shrinkage and impact strength of fibre-reinforced artificial lightweight aggregate concrete. Materials Science and Engineering, vol. 671, iss. 1, pp. 1–11. doi:10.1088/1757-899X/671/1/012118.
Rzhevutskaya V.A., Moskal'kova Yu.G. (2024) Polypropylene fiber as a factor of reduction the total shrinkage strain of expanded clay concrete. Russian Journal of Building Construction and Architecture, vol. 64, pp. 6–15. doi:10.36622/2542-0526.2024.64.4.001.
Загрузки
Опубликован
Выпуск
Раздел
Лицензия
Copyright (c) 2025 International Journal for Computational Civil and Structural Engineering
Это произведение доступно по лицензии Creative Commons «Attribution-NonCommercial-ShareAlike» («Атрибуция — Некоммерческое использование — На тех же условиях») 4.0 Всемирная.
