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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-8323-2022-66-1-109-112</article-id><article-id custom-type="elpub" pub-id-type="custom">dan-1044</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ТЕХНИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>TECHNICAL SCIENCES</subject></subj-group></article-categories><title-group><article-title>Синергетическое влияние наночастиц SiO2 и углеродных нанотрубок на свойства бетона</article-title><trans-title-group xml:lang="en"><trans-title>Synergistic influence of SiO2 nanoparticles and carbon nanotubes on the properties of concrete</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жданок</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhdanok</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Жданок Сергей Александрович – академик, доктор физико-математических наук, профессор, главный научный сотрудник.</p><p>Ул. Совхозная, д. 1-16, 223058, Лесковка, Минский р-н</p></bio><bio xml:lang="en"><p>Zhdanok Siarhei A. – Academician, D. Sc. (Physics and Mathematics), Professor, Chief Researcher.</p><p>1-16, Sovkhoznaya Str., 223058, Leskovka village, Minsk district</p></bio><email xlink:type="simple">ceo@art-pte.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Леонович</surname><given-names>С. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Leonovich</surname><given-names>S. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Леонович Сергей Николаевич – доктор технических наук, профессор, декан.</p><p>Пр. Независимости, 65, 220013, Минск</p></bio><bio xml:lang="en"><p>Leonovich Sergei N. – D. Sc. (Engineering), Professor, Dean.</p><p>65, Nezavisimosti Ave., 220013, Minsk</p></bio><email xlink:type="simple">sleonovich@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Полонина</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Polonina</surname><given-names>E. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Полонина Елена Николаевна – старший преподаватель.</p><p>Пр. Независимости, 65, 220013, Минск</p></bio><bio xml:lang="en"><p>Polonina Elena N. – Senior Lecturer.</p><p>Nezavisimosti Ave., 65, 220013, Minsk</p></bio><email xlink:type="simple">grushevskay_en@tut.by</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Передовые исследования и технологии</institution></aff><aff xml:lang="en"><institution>Advanced Research and Technologies</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Белорусский национальный технический университет</institution></aff><aff xml:lang="en"><institution>Belarusian National Technical University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>10</day><month>03</month><year>2022</year></pub-date><volume>66</volume><issue>1</issue><fpage>109</fpage><lpage>112</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Жданок С.А., Леонович С.Н., Полонина Е.Н., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Жданок С.А., Леонович С.Н., Полонина Е.Н.</copyright-holder><copyright-holder xml:lang="en">Zhdanok S.A., Leonovich S.N., Polonina E.N.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://doklady.belnauka.by/jour/article/view/1044">https://doklady.belnauka.by/jour/article/view/1044</self-uri><abstract><p>Продемонстрирован взаимоусиливающий эффект влияния сверхмалых доз наночастиц SiO2 и многостенных углеродных нанотрубок (МУНТ) в пределах 0,00004–0,000006 мас. % от массы цемента на структуру цементного камня и механические свойства бетона. Обнаружена корреляция увеличения механической прочности бетона на 56 % с изменениями в структуре цементного камня, при которых существенно возрастает доля кристаллов гидроалюмината кальция, гидросульфоалюмината кальция и тоберморита типа 14А. Полученные результаты закладывают основы для разработки технологии промышленного производства комплексных добавок в бетоны с комбинацией наночастиц (МУНТ + SiO2), позволяющих улучшить механические и физические характеристики бетона и увеличить его долговечность.</p></abstract><trans-abstract xml:lang="en"><p>carbon nanotubes (MWCNTs) in the range of 0.00004–0.000006 wt. % of the mass of cement on the structure and mechanical properties of concrete was demonstrated. A correlation was found between an increase in the mechanical strength of concrete by 56 % with changes in the structure of the cement stone, at which the proportion of crystals of calcium hydroaluminate, calcium hydrosulfoaluminate and type 14A tobermorite increases significantly. The results obtained lay the foundations for the development of a technology for the industrial production of complex additives in concrete with a combination of nanoparticles (MWCNT + SiO2), which make it possible to improve the mechanical and physical characteristics of concrete and increase its durability.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>комплексная добавка</kwd><kwd>наночастицы</kwd><kwd>бетон</kwd><kwd>прочность</kwd></kwd-group><kwd-group xml:lang="en"><kwd>complex additive</kwd><kwd>nanoparticles</kwd><kwd>concrete</kwd><kwd>strength</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Nanomaterials and nanotechnology for high-performance cement composites / K. 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