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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Structural Mechanics of Engineering Constructions and Buildings</journal-id><journal-title-group><journal-title xml:lang="en">Structural Mechanics of Engineering Constructions and Buildings</journal-title><trans-title-group xml:lang="ru"><trans-title>Строительная механика инженерных конструкций и сооружений</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1815-5235</issn><issn publication-format="electronic">2587-8700</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">33410</article-id><article-id pub-id-type="doi">10.22363/1815-5235-2022-18-5-438-443</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Analytical and numerical methods of analysis of structures</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Аналитические и численные методы расчета конструкций</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Predicting the residual life of concrete structures in biocorrosion from the position of the theory of mass transfer</article-title><trans-title-group xml:lang="ru"><trans-title>Прогнозирование остаточного ресурса бетонных конструкций при биокоррозии с позиции теории массопереноса</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6117-7529</contrib-id><name-alternatives><name xml:lang="en"><surname>Fedosov</surname><given-names>Sergey V.</given-names></name><name xml:lang="ru"><surname>Федосов</surname><given-names>Сергей Викторович</given-names></name></name-alternatives><bio xml:lang="en"><p>Academician of the RAACS, Doctor of Technical Sciences, Professor, Professor of the Department of Technology and Organization of Construction Production</p></bio><bio xml:lang="ru"><p>академик РААСН, доктор технических наук, профессор кафедры технологии и организация строительного производства</p></bio><email>mr.fedosow.2011@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6025-8968</contrib-id><name-alternatives><name xml:lang="en"><surname>Loginova</surname><given-names>Svetlana A.</given-names></name><name xml:lang="ru"><surname>Логинова</surname><given-names>Светлана Андреевна</given-names></name></name-alternatives><bio xml:lang="en"><p>Candidate of Technical Sciences, Associate Professor of the Department of Building Structures</p></bio><bio xml:lang="ru"><p>кандидат технических наук, доцент кафедры строительных конструкций</p></bio><email>sl79066171227@yandex.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8263-4546</contrib-id><name-alternatives><name xml:lang="en"><surname>Shalygina</surname><given-names>Anna A.</given-names></name><name xml:lang="ru"><surname>Шалыгина</surname><given-names>Анна Александровна</given-names></name></name-alternatives><bio xml:lang="en"><p>student</p></bio><bio xml:lang="ru"><p>студент</p></bio><email>miss-anna.shalygina@yandex.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Moscow State University of Civil Engineering (National Research University)</institution></aff><aff><institution xml:lang="ru">Национальный исследовательский Московский государственный строительный университет</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Yaroslavl State Technical University</institution></aff><aff><institution xml:lang="ru">Ярославский государственный технический университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2022-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2022</year></pub-date><volume>18</volume><issue>5</issue><issue-title xml:lang="en">VOL 18, NO5 (2022)</issue-title><issue-title xml:lang="ru">ТОМ 18, №5 (2022)</issue-title><fpage>438</fpage><lpage>443</lpage><history><date date-type="received" iso-8601-date="2023-01-29"><day>29</day><month>01</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, Fedosov S.V., Loginova S.A., Shalygina A.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, Федосов С.В., Логинова С.А., Шалыгина А.А.</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="en">Fedosov S.V., Loginova S.A., Shalygina A.A.</copyright-holder><copyright-holder xml:lang="ru">Федосов С.В., Логинова С.А., Шалыгина А.А.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/structural-mechanics/article/view/33410">https://journals.rudn.ru/structural-mechanics/article/view/33410</self-uri><abstract xml:lang="en"><p style="text-align: justify;">The problem of corrosive destruction of concrete and reinforced concrete structures of industrial buildings affected by aggressive environments does not lose its relevance, because, despite the abundance of modern methods of protection, there are still no radical methods of corrosion control. Corrosive destruction of building materials leads to a strength and load-bearing capacity reduction, loss of aesthetic properties of concrete and reinforced concrete structures and, consequently, to a decrease in the residual life of buildings and structures. The biological factor often acts as an intensifier of corrosive destruction. In this regard, it is reasonable to search for the possibility of predicting the durability of concrete and reinforced concrete structures in aggressive liquid mediums, taking into account the biofactor effect from the standpoint of mass transfer theory. The authors present a model of mass transfer in a concrete structure exposed to aggressive environment and biofouling. The proposed physical and mathematical model considers the properties of concrete and aggressive environment, as well as the kinetics of continuous processes of growth, reproduction and death of microorganisms. The results of numerical experiments on the proposed mathematical model are provided. The application of the received solutions will allow timely monitoring of biocorrosive destruction of concrete and reinforced concrete structures and selecting effective methods of protection.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;">Проблема коррозионного разрушения бетонных и железобетонных конструкций производственных зданий, испытывающих влияние агрессивных сред, не теряет своей актуальности, поскольку, несмотря на обилие современных способов защиты, до сих пор радикальных методов борьбы не существует. Коррозионная деструкция строительных материалов приводит к снижению прочности и несущей способности, потере эстетических свойств бетонных и железобетонных конструкций и, следовательно, к снижению остаточного ресурса зданий и сооружений. Интенсификатором коррозионной деструкции нередко выступает биологический фактор. В связи с этим рационален поиск возможности прогнозирования долговечности бетонных и железобетонных конструкций в агрессивных жидких средах с учетом действия биофактора с позиции теории массопереноса. Приводится модель массопереноса в бетонной конструкции, подверженной воздействию агрессивной среды и биообрастанию. Предложенная физико-математическая модель учитывает свойства бетона и агрессивной среды, а также кинетику непрерывных во времени процессов роста, размножения и гибели микроорганизмов. Приводятся результаты численных экспериментов по предложенной математической модели. Применение полученных решений позволит осуществлять своевременный мониторинг биокоррозионных разрушений бетонных и железобетонных конструкций и подбирать эффективные методы защиты.</p></trans-abstract><kwd-group xml:lang="en"><kwd>concrete</kwd><kwd>reinforced concrete</kwd><kwd>corrosion</kwd><kwd>biodegradation</kwd><kwd>residual life</kwd><kwd>mass transference</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>бетон</kwd><kwd>железобетон</kwd><kwd>коррозия</kwd><kwd>биоразрушение</kwd><kwd>остаточный ресурс</kwd><kwd>массоперенос</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Pukhonto L.M. Durability of reinforced concrete constructions of engineering structures. Moscow: ASV Publ.; 2004. (In Russ.)</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Timoshin A.A., Orlova T.S. Analysis of the economic sustainability of industrial enterprises in the context of digitalization and risk control. Scientific Review: Theory and Practice. 2021;6(86):1589-1600. (In Russ.) https://doi.org/10.35679/2226-0226-2021-11-6-1589-1600</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Selyaev P.V., Kechutkina E.L., Babushkina D.R., Gryaznov S.Yu. Modeling of the work of reinforced concrete structures taking into account the combined action of mechanical loads and aggressive media. Expert: Theory and Practice. 2021;1(10):19-24. (In Russ.) https://doi.org/10.51608/26867818_2021_1_19</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Selyaev V.P., Selyaev P.V., Kechutkina E.L., Bezrukova E.S. Kinetic models of interaction of cement and polymer concretes with chemically active media. Saransk; 2020. (In Russ.)</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Erofeev V.T., Al Dulaimi S.D.S., Dergunova A.V. Improving the durability and environmental friendliness of buildings and structures in the textile industry by using materials modified with a microbiological additive. News of Higher Educational Institutions. Technology of the Textile Industry. 2021;3(393):141-146. (In Russ.) https://doi.org/10.47367/0021-3497_2021_3_141</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Erofeev V.T., Yelchishcheva T.F., Vatin N.I., Mitina E.A., Rodin A.I., Erofeeva I.V. Design of structures of external walls of buildings under adverse environmental influences. Industrial and Civil Construction. 2020;8:4-15. (In Russ.) https://doi.org/10.33622/0869-7019.2020.08.04-15</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Rimshin V.I., Shubin I.L., Erofeev V.T., Avetisyan A.A. Automation of the life cycle of buildings during reconstruction and major repairs. Housing Construction. 2022;7:6-12. (In Russ.) https://doi.org/10.31659/0044-4472-2022-7-6-12</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Gusev B.V., Fayvusovich A.S. Calculated dependencies for predicting the technical condition of reinforced concrete structures. Industrial and Civil Construction. 2021;6:4-12. (In Russ.) https://doi.org/10.33622/0869-7019.2021.06.04-12</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Gusev B.V., Faivusovich A.S. Mathematical theory of processes of concrete corrosion. Industrial and Civil Construction. 2019;7:58-63. (In Russ.) https://doi.org/10.33622/0869-7019.2019.07.58-63</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Rosenthal N.K., Chekhov G.V. Corrosion and protection of reinforced concrete structures in biologically active media. Bulletin of Construction SIC. 2013;7-8:111-118. (In Russ.)</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Morozov V.I., Antsygin O.I., Savchenko A.P. Calculating and modeling the operation of structures with corrosion damages. Bulletin of Civil Engineers. 2009;1:25-30. (In Russ.)</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>Wasim M., Duc Ngo T., Abid M. Investigation of long-term corrosion resistance of reinforced concrete structures constructed with various types of concretes in marine and various climate environments. Construction and Building Materials. 2020;237:117701. https://doi.org/10.1016/j.conbuildmat.2019.117701</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>Fedosov S.V., Loginova S.A. Mathematical model of concrete biological corrosion. Magazine of Civil Engineering. 2020;99(7):9906. https://doi.org/10.18720/MCE.99.6</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>Zaikina S.M. Generalized integral Laplace transform and its application to solving some integral equations. Journal of Samara State Technical University. Series: Physical and Mathematical Sciences. 2014;1(34):19-24. (In Russ.) https://doi.org/10.14498/vsgtu1265</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>Chaulagain H. Common structural deficiencies of RC buildings in Nepal. BSMC Journal of Local Development. 2016;1(1):130-141.</mixed-citation></ref><ref id="B16"><label>16.</label><mixed-citation>Loginova S.A. Principles of mathematical modeling of corrosion processes in aggressive environments. Smart Composites in Construction. 2022;3(1):47-57. (In Russ.) https://doi.org/10.52957/27821919_2022_1_47</mixed-citation></ref><ref id="B17"><label>17.</label><mixed-citation>Yang Y., Wang M. Pore-scale modeling of chloride ion diffusion in cement microstructures. Cement and Concrete Composites. 2018;85:92-104. https://doi.org/10.1016/j.cemconcomp.2017.09.014</mixed-citation></ref><ref id="B18"><label>18.</label><mixed-citation>Davis J.L., Nica D., Shields K., Roberts D.J. Analysis of concrete from corroded sewer pipe. International Biodeterioration and Biodegradation. 1998;42(1):75-84. https://doi.org/10.1016/S0964-8305(98)00049-3</mixed-citation></ref><ref id="B19"><label>19.</label><mixed-citation>Salihovic A., Ademovic N. Nonlinear analysis of reinforced concrete frame under lateral load. Coupled System Mechanics. 2017;6(4):523-537. https://doi.org/10.12989/csm.2017.6.4.523</mixed-citation></ref></ref-list></back></article>
