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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">bzhb</journal-id><journal-title-group><journal-title xml:lang="ru">Бетон и железобетон</journal-title><trans-title-group xml:lang="en"><trans-title>Concrete and Reinforced Concrete</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0005-9889</issn><issn pub-type="epub">3034-1302</issn><publisher><publisher-name>АО «НИЦ «Строительство»</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">bzhb-21</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Комплексное модифицирование легких бетонов на полых микросферах для технологии 3D-печати</article-title><trans-title-group xml:lang="en"><trans-title>Complex modification of light concretes on hollow microspheres for 3D printing technology</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>Куй</surname><given-names>Зыонг Тхань</given-names></name><name name-style="western" xml:lang="en"><surname>Qui</surname><given-names>Duong Thanh</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. техн. наук</p></bio><bio xml:lang="en"><p>Candidate of Sciences (Engineering)</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Королев</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Korolev</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р техн. наук, проректор по учебно-методической работе</p><p>e-mail: prorector.umr@spbgasu.ru </p></bio><bio xml:lang="en"><p>Doctor of Sciences (Engineering), Vice-Rector for educational and methodological work</p><p>e-mail: prorector.umr@spbgasu.ru </p></bio><email xlink:type="simple">prorector.umr@spbgasu.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>Иноземцев</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Inozemcev</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. техн. наук</p><p>e-mail: inozemcevAS@mgsu.ru </p></bio><bio xml:lang="en"><p>Candidate of Sciences (Engineering)</p><p>e-mail: inozemcevAS@mgsu.ru </p></bio><email xlink:type="simple">inozemcevAS@mgsu.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Вьетнамский институт строительных материалов</institution><country>Вьетнам</country></aff><aff xml:lang="en"><institution>Vietnam Institute for Building Materials</institution><country>Viet Nam</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный архитектурно-строительный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint Petersburg State University of Architecture and Civil Engineering</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Национальный исследовательский Московский государственный строительный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow State University of Civil Engineering</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>07</day><month>09</month><year>2023</year></pub-date><volume>605</volume><issue>3</issue><fpage>25</fpage><lpage>29</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Куй З.Т., Королев Е.В., Иноземцев А.С., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Куй З.Т., Королев Е.В., Иноземцев А.С.</copyright-holder><copyright-holder xml:lang="en">Qui D.T., Korolev E.V., Inozemcev A.S.</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://www.bzhb.ru/jour/article/view/21">https://www.bzhb.ru/jour/article/view/21</self-uri><abstract><p>С развитием технологии 3D-печати в строительстве все большую актуальность приобретают разработки эффективных строительных материалов с заданными эксплуатационными свойствами для экструзионного формования. В статье представлены результаты исследования влияния двух рецептурных факторов на свойства легких бетонов на полых микросферах посредством математического планирования эксперимента. Получены экспериментально-статистические модели, описывающие зависимости изменения подвижности бетонной смеси, средней плотности, прочности при изгибе, при сжатии и деформаций усадки легкого бетона от содержания раствора суперабсорбирующего полимера (САП), обеспечивающего гидратацию портландцемента в неблагоприятных условиях твердения, и дисперсно-армирующей добавки – полипропиленовой фибры. Установлены оптимальные диапазоны содержания фибры и САП, которые составляют (в %): XФєI[1,19; 1,38] и XСАПєI[0,81; 1,25] соответственно. Состав легкого бетона на полых микросферах, содержащий 1,25 % фибры и 1,25 % САП, имеет наилучшие физико-механические свойства.</p></abstract><trans-abstract xml:lang="en"><p>With the development of 3D printing technology in construction, the development of effective building materials with specified performance properties for extrusion molding is becoming increasingly relevant. The article presents the results of the study of the influence of two prescription factors on the properties of light concretes on hollow microspheres by means of mathematical planning of the experiment. Experimental and statistical models describing the dependences of changes in the mobility of the concrete mixture, average density, bending strength, compression and shrinkage deformations of light concrete on the content of a solution of superabsorbing polymer (SAP), which provides hydration of Portland cement under unfavorable hardening conditions, and a dispersed reinforcing additive-polypropylene fiber, are obtained. The optimal ranges of fiber and SAP content were established, which are (in %): CFєI[1.19; 1.38] and CSAPєI[0.81; 1.25], respectively. The composition of light concrete on hollow microspheres, containing 1.25 % fiber and 1.25 % SAP, has the best physical and mechanical properties.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>легкий бетон</kwd><kwd>конструкционный легкий бетон</kwd><kwd>полые микросферы</kwd><kwd>суперабсорбирующий полимер</kwd><kwd>полипропиленовая фибра</kwd><kwd>3D-печать</kwd></kwd-group><kwd-group xml:lang="en"><kwd>lightweight concrete</kwd><kwd>structural lightweight concrete</kwd><kwd>hollow microspheres</kwd><kwd>superabsorbing polymer</kwd><kwd>polypropylene fiber</kwd><kwd>3D printing</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке гранта Президента Российской Федерации для государственной поддержки молодых российских ученых – кандидатов наук МК-1394.2020.8.</funding-statement><funding-statement xml:lang="en">The work was executed under support of the Grant of the President of the Russian Federation for state support of young Russian scientists – Candidates of Sciences MK-1394.2020.8.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Демиденко А.К., Кулибаба А.В., Иванов М.Ф. 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