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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">35860</article-id><article-id pub-id-type="doi">10.22363/1815-5235-2023-19-2-251-257</article-id><article-id pub-id-type="edn">DMOFUJ</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Construction materials and products</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Строительные материалы и изделия</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">Mechanical properties of fine-grained carbonate concretes with a complex additive, including fine limestone filler and superplasticizer</article-title><trans-title-group xml:lang="ru"><trans-title>Механические свойства мелкозернистых карбонатных бетонов с комплексной добавкой, включающей тонкодисперсный известняковый наполнитель и суперпластификатор</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0761-6460</contrib-id><name-alternatives><name xml:lang="en"><surname>Belov</surname><given-names>Vladimir V.</given-names></name><name xml:lang="ru"><surname>Белов</surname><given-names>Владимир Владимирович</given-names></name></name-alternatives><bio xml:lang="en"><p>Doctor of Technical Sciences, Professor, adviser of the Russian Academy of Architecture and Building Sciences, Head of the Department of Building Materials and Structures</p></bio><bio xml:lang="ru"><p>доктор технических наук, профессор, советник Российской академии архитектуры и строительных наук, заведующий кафедрой производства строительных изделий и конструкций</p></bio><email>vladim-bel@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8762-215X</contrib-id><name-alternatives><name xml:lang="en"><surname>Kuliaev</surname><given-names>Pavel V.</given-names></name><name xml:lang="ru"><surname>Куляев</surname><given-names>Павел Викторович</given-names></name></name-alternatives><bio xml:lang="en"><p>Candidate of Technical Sciences, Associate Professor, Associate Professor of the Department of Constructions and Structures</p></bio><bio xml:lang="ru"><p>кандидат технических наук, доцент, доцент кафедры конструкций и сооружений</p></bio><email>p.kuliaev@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0012-1430</contrib-id><name-alternatives><name xml:lang="en"><surname>Barkaya</surname><given-names>Temur R.</given-names></name><name xml:lang="ru"><surname>Баркая</surname><given-names>Темур Рауфович</given-names></name></name-alternatives><bio xml:lang="en"><p>Candidate of Technical Sciences, Associate Professor, Head of the Department of Constructions and Structures</p></bio><bio xml:lang="ru"><p>кандидат технических наук, доцент, заведующий кафедрой конструкций и сооружений</p></bio><email>btrs@list.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Tver State Technical University</institution></aff><aff><institution xml:lang="ru">Тверской государственный технический университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-09-05" publication-format="electronic"><day>05</day><month>09</month><year>2023</year></pub-date><volume>19</volume><issue>2</issue><issue-title xml:lang="en">VOL 19, NO2 (2023)</issue-title><issue-title xml:lang="ru">ТОМ 19, №2 (2023)</issue-title><fpage>251</fpage><lpage>257</lpage><history><date date-type="received" iso-8601-date="2023-09-05"><day>05</day><month>09</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Belov V.V., Kuliaev P.V., Barkaya T.R.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Белов В.В., Куляев П.В., Баркая Т.Р.</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Belov V.V., Kuliaev P.V., Barkaya T.R.</copyright-holder><copyright-holder xml:lang="ru">Белов В.В., Куляев П.В., Баркая Т.Р.</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/35860">https://journals.rudn.ru/structural-mechanics/article/view/35860</self-uri><abstract xml:lang="en"><p style="text-align: justify;">The stress-strain properties of fine-grained carbonate concretes, despite the fact that they have proven themselves well in various types of construction, have not been studied to the same extent as the deformation and strength properties of traditional heavy concrete. The object of the study is to find ways to improve the physical and mechanical properties of fine-grained carbonate concretes by using a mineral complex additive consisting of a finely dispersed limestone filler and a superplasticizer in the composition of concrete. The relationship between the ultimate values of strength characteristics (cubic strength) and crack-initiating stresses and deformations for conventional and carbonate fine-grained concrete compositions were analyzed. Through the damping mechanism of the cracking process in concrete, due to the joint work of a superplasticizer and a carbonate microdisperse filler a composition of carbonate fine-grained concrete was obtained, capable of resisting static and dynamic loads, with a dense structure and increased reliability and durability.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;">Деформационные и прочностные свойства мелкозернистых карбонатных бетонов, несмотря на то что они хорошо зарекомендовали себя в различных типах строительства, не изучены в той же степени, как характеристики традиционных тяжелых бетонов. Цель исследования - разработка способов повышения физико-механических свойств мелкозернистых карбонатных бетонов с использованием минеральной комплексной добавки, состоящей из тонкодисперсного известнякового наполнителя и суперпластификатора в составе бетона. Проанализированы взаимосвязи предельных значений прочностных характеристик (кубиковая прочность) и трещинообразующих напряжений и деформаций для обычного и карбонатного мелкозернистого составов бетона. Через механизм демпфирования процесса трещинообразования в бетоне, за счет совместной работы суперпластификатора и карбонатного микродисперсного наполнителя получен состав карбонатного мелкозернистого бетона, способный сопротивляться статическим и динамическим нагрузкам, с плотной структурой и повышенными надежностью и долговечностью.</p></trans-abstract><kwd-group xml:lang="en"><kwd>cracking stresses</kwd><kwd>deformations</kwd><kwd>carbonate micro-filler</kwd><kwd>superplasticizer</kwd><kwd>complex additive</kwd><kwd>microcracking</kwd><kwd>damping</kwd><kwd>mesopores</kwd><kwd>micropores</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>трещинообразующие напряжения</kwd><kwd>деформации</kwd><kwd>карбонатный микронаполнитель</kwd><kwd>суперпластификатор</kwd><kwd>комплексная добавка</kwd><kwd>микротрещинообразование</kwd><kwd>демпфирование</kwd><kwd>мезопоры</kwd><kwd>микропоры</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Yu R., Spiesz P., Brouwers H.J.H. 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