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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">izvestswsu</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Юго-Западного государственного университета</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the Southwest State University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2223-1560</issn><issn pub-type="epub">2686-6757</issn><publisher><publisher-name>ЮЗГУ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21869/2223-1560-2024-28-3-69-81</article-id><article-id custom-type="elpub" pub-id-type="custom">izvestswsu-1329</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>Constructions</subject></subj-group></article-categories><title-group><article-title>Защитное покрытие строительных конструкций от криогенного воздействия на основе цементных плит</article-title><trans-title-group xml:lang="en"><trans-title>Protective coating of steel structures from cryogenic effects based on cement slabs</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>Гравит</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gravit</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гравит Марина Викторовна, кандидат  технических наук, доцент Высшей школы  промышленно-гражданского и дорожного  строительства,</p><p>ул. Политехническая, д. 29, г. Санкт-Петербург 195251.</p></bio><bio xml:lang="en"><p>Marina V. Gravit, Cand. of Sci. (Engineering), Associate Professor, Higher School of Industrial, Civil and Road Construction, </p><p>29, Polytechnicheskaya str., Saint Petersburg 195251.</p></bio><email xlink:type="simple">marina.gravit@mail.ru</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>Недвига</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Nedviga,</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Недвига Екатерина Сергеевна,  старший преподаватель Высшей школы  промышленно-гражданского и дорожного  строительства, </p><p>ул. Политехническая, д. 29, г. Санкт-Петербург 195251.</p></bio><bio xml:lang="en"><p>Ekaterina S. Nedviga, Senior Lecturer,  Higher School of Industrial, Civil  and Road Construction, </p><p>29, Polytechnicheskaya str., Saint Petersburg 195251.</p></bio><email xlink:type="simple">nck@bk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский  политехнический университет Петра Великого</institution></aff><aff xml:lang="en"><institution>Peter the Great St. Petersburg Polytechnic University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>12</day><month>12</month><year>2024</year></pub-date><volume>28</volume><issue>3</issue><fpage>69</fpage><lpage>81</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гравит М.В., Недвига Е.С., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Гравит М.В., Недвига Е.С.</copyright-holder><copyright-holder xml:lang="en">Gravit M.V., Nedviga, E.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://izvestswsu.elpub.ru/jour/article/view/1329">https://izvestswsu.elpub.ru/jour/article/view/1329</self-uri><abstract><sec><title>Цель исследования</title><p>Цель исследования. Применение сжиженного природного газа (СПГ) в качестве энергоносителя расширяется ежегодно. Поэтому целью данной статьи является анализ нормативных требований к защите конструкций от пролива криогенных жидкостей, таких как СПГ. Также в статье оценивается способность огнеза-щитных материалов сопротивляться не только высокотемпературным воздействиям, но и низкотем-пературным. </p></sec><sec><title>Методы</title><p>Методы. В статье рассмотрены основные методики испытания материалов на противодействие проливу криогенных жидкостей и возможность применения средств огнезащиты в качестве криозащитных материалов. Объектом исследования стала огнезащитная конструктивная система, состоящая из плит «ПРОЗАСК Файерпанель». Защитная система производства ООО «ПРОЗАСК» состоит из двух слоев огнезащитных плит «ПРОЗАСК Файерпанель» с негорючей мембраной. А предметом исследования – криозащитная функция такой системы. </p></sec><sec><title>Результаты</title><p>Результаты. Средняя температура образца после 60-минутного криогенного воздействия составила  53°С, сделаны выводы о целесообразности проведения последовательных испытаний на низкотемпературное и огневое воздействия ввиду высокой вероятности развития пожара после пролива криогенной жидкости при наличии источника пламени.</p></sec><sec><title>Заключение</title><p>Заключение. В статье показаны и проанализированы результаты испытания защитной системы производства ООО «ПРОЗАСК». При корректном выборе марки стали (в том числе по требованию к ударной вязкости) несущих конструкций объектов нефтегазового комплекса, можно сделать вывод о работоспособности конструкций, защищенных системой конструктивной огнезащиты с плитами «ПРОЗАСК Файерпанель», после часового криогенного воздействия.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Purpose of research</title><p>Purpose of research. The use of liquefied natural gas (LNG) as an energy carrier is expanding annually. Therefore, the purpose of this article is to analyze the regulatory requirements for the structure protection from the cryogenic liquid spill such as LNG. The article also evaluates the ability of fireprotective materials to resist not only hightemperature influences, but also low-temperature ones.</p></sec><sec><title>Methods</title><p>Methods. The article discusses the main methods of material testings to counteract the cryogenic liquid spill and the possibility of using fireprotective products as cryoprotective materials. The results of testing the protective system manufactured by LLC "PROSASK" are shown and analyzed. The object of the study is a fire-retardant structural system consisting of "PROSASK Fire Panel" plates. The protective system consists of two layers of flame-retardant plates "PROSASK Fire Panel" with a non-flammable membrane " in the middle, manufactured by LLC "PROSASK". And the subject of the research is the cryoprotective function of this system.</p></sec><sec><title>Results</title><p>Results. The average temperature of the sample after 60 minutes cryogenic exposure was - 53 °C, conclusions were drawn about the expediency of conducting successive tests for low-temperature and fire exposure due to the high probability of fire after the cryogenic liquid spill in the presence of a flame source.</p></sec><sec><title>Conclusion</title><p>Conclusion. The article shows and analyzes the test results of the protective system manufactured by LLC "PROSASK". With the correct choice of steel grade (including the requirement for impact strength) of load-bearing structures of oil and gas facilities, it can be concluded that structures protected by a structural fire protection system with PROSASK Firepanel plates are operable after an hour of cryogenic exposure.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>сжиженный природный газ</kwd><kwd>криозащитные материалы</kwd><kwd>защита строительных конструкций</kwd><kwd>конструктивная огнезащита</kwd></kwd-group><kwd-group xml:lang="en"><kwd>liquefied natural gas</kwd><kwd>cryoprotective materials</kwd><kwd>protection of building structures</kwd><kwd>structural fire protection</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">Производство СПГ в России должно вырасти в 4 раза к 2035 году. 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