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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">sat</journal-id><journal-title-group><journal-title xml:lang="ru">НАУКА и ТЕХНИКА</journal-title><trans-title-group xml:lang="en"><trans-title>Science &amp; Technique</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2227-1031</issn><issn pub-type="epub">2414-0392</issn><publisher><publisher-name>Belarusian National Technical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21122/2227-1031-2019-18-2-171-180</article-id><article-id custom-type="elpub" pub-id-type="custom">sat-1956</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>СТРОИТЕЛЬСТВО</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CIVIL AND INDUSTRIAL ENGINEERING</subject></subj-group></article-categories><title-group><article-title>Моделирование асфальтобетона методом дискретных элементов</article-title><trans-title-group xml:lang="en"><trans-title>Modeling of Asphalt Concrete While Using Discrete Element Method</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>Алексеенко</surname><given-names>В. B.</given-names></name><name name-style="western" xml:lang="en"><surname>Alekseenko</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кандидат химических наук, доцент</p><p>Адрес для переписки: Алексеенко Виктор Викторович – ул. Лермонтова, 83, Иркутский национальный исследовательский технический университет, 664074, г. Иркутск, Российская Федерация. Тел.: +7 914 875-7915    alavic59@yahoo.com</p></bio><bio xml:lang="en"><p>Address for correspondence: Alekseenko Viktor V. –  Irkutsk National Research Technical University, 83, Lermontov str., 664074, Irkutsk, Russian Federation. Tel.: +7 914 875-7915    alavic59@yahoo.com</p></bio><email xlink:type="simple">alavic59@yahoo.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>Вабищевич</surname><given-names>К. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Vabishchevich</surname><given-names>K. Yu.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Верхотурова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Verkhoturova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доцент</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Иркутский национальный исследовательский технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Irkutsk National Research Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>17</day><month>04</month><year>2019</year></pub-date><volume>18</volume><issue>2</issue><fpage>171</fpage><lpage>180</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Алексеенко В.B., Вабищевич К.Ю., Верхотурова Е.В., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Алексеенко В.B., Вабищевич К.Ю., Верхотурова Е.В.</copyright-holder><copyright-holder xml:lang="en">Alekseenko V.V., Vabishchevich K.Y., Verkhoturova E.V.</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://sat.bntu.by/jour/article/view/1956">https://sat.bntu.by/jour/article/view/1956</self-uri><abstract><p>В статье для исследования композиционного материала, похожего по строению на асфальтобетон, рассмотрена математическая модель, которая явно учитывает наличие твердых частиц разных размеров и мягкого и пластичного связующего. Методом дискретных элементов в двумерной постановке исследовано разрушение асфальтобетонных образцов при одноосном сжатии, растяжении при расколе и сжатии по методу Маршалла. Численная модель учитывает наличие крупных частиц щебня, асфальтовой мастики, заполняющей поры в щебне, и липкой (способной восстанавливаться после разрыва) связи между частицами щебня. Силовое взаимодействие между различными компонентами асфальтобетона описано с помощью упругого отталкивания между частицами щебня, силы трения и силы, отвечающей за прилипание частиц, ввиду наличия вяжущего. Эта модель дает правильную, совпадающую с реальным экспериментом картину разрушения для одноосного сжатия, растяжения при расколе и сжатия по методу Маршалла. Именно правильная картина разрушения для трех различных схем нагружения материала позволяет оценить адекватность использованной математической модели. Установлены основные физико-механические характеристики вяжущего, которые определяют прочность и деформативность асфальтобетона. Показано, что для адекватного описания физико-механических характеристик асфальтобетона необходимо изучать и измерять свойства асфальтовяжущего – смеси битума и мелкодисперсного минерального наполнителя, определяющего параметры взаимодействия между частицами щебня. На основании выполненных авторами численных экспериментов можно предложить новые лабораторные методы испытаний смеси каменных материалов и органических связующих, которые намного более просты и, следовательно, дешевы, чем стандартные испытания асфальтобетона. Кроме того, эти испытания будут точнее предсказывать поведение асфальтобетона в реальных условиях.</p></abstract><trans-abstract xml:lang="en"><p>The paper considers a mathematical model which is used to study a composite material similar in structure to asphalt concrete and it takes into account presence of solid particles of different sizes and a soft and plastic binder. The twodimensional method of discrete elements has been applied to investigate destruction of asphalt-concrete samples under uniaxial compression, tension during splitting and compression by the Marshall method. The numerical model takes into account presence of large particles of rubble, asphalt mastic filling rubble pores and sticky (capable of recovering after rupture) communication between rubble particles. The force interaction between various components of the asphalt concrete has been described with the help of elastic repulsion between rubble particles, friction force and force responsible for sticking of particles due to presence of a binder. This model gives a correct fracture pattern for uniaxial compression, stretching during splitting and compression according to the Marshall method and this pattern coincides with the real experiment. It is the correct picture of destruction for three different schemes of material loading which makes it possible to assess the adequacy of the mathematical model which has been used. Basic physico mechanical characteristics of the binder which determine strength and deformability of asphalt concrete have been established in the paper. It has been shown that for an adequate description of physico mechanical characteristics for asphalt concrete it is necessary to study and measure properties of an asphalt binder that is a mixture of bitumen and fine mineral filler which determines parameters of interaction between rubble particles. The numerical experiments serve as a basis and make it possible to propose new laboratory methods for testing a mixture of stone materials and organic binders which are much simpler and, therefore, cheaper than standard tests on asphalt concrete. In addition these tests will more accurately predict behavior of asphalt concrete in real conditions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>метод дискретных элементов</kwd><kwd>асфальтобетон</kwd><kwd>асфальтовяжущее</kwd><kwd>разрушение</kwd><kwd>прочность</kwd><kwd>деформативность</kwd><kwd>одноосное сжатие</kwd><kwd>растяжение при расколе</kwd><kwd>сжатие по методу Маршалла</kwd></kwd-group><kwd-group xml:lang="en"><kwd>discrete element method</kwd><kwd>asphalt concrete</kwd><kwd>asphalt binder</kwd><kwd>fragmentation</kwd><kwd>strength</kwd><kwd>deformability</kwd><kwd>uniaxial compression</kwd><kwd>indirect tensile test</kwd><kwd>Marshall compression</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">Cundall, P. A. A Discrete Numerical Model for Granular Assemblies / Р. А. Cundall, O. D. L. Strack // Geotechnique. 1979. No 29. 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