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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Smart composite in construction</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Smart composite in construction</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Умные композиты в строительстве</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="online">2782-1919</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">82646</article-id>
   <article-id pub-id-type="doi">10.52957/27821919_2022_3_41</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Строительные материалы и изделия</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>Construction materials and products</subject>
    </subj-group>
    <subj-group>
     <subject>Строительные материалы и изделия</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">The relationship of changes in the structural-phase composition and strength of hydrophobized concrete under the influence of a chloride-containing medium</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Взаимосвязь изменений структурно-фазового состава и прочности гидрофобизированного бетона при воздействии хлоридсодержащей среды</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Коновалова</surname>
       <given-names>Виктория Сергеевна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Konovalova</surname>
       <given-names>Victoriya Sergeevna</given-names>
      </name>
     </name-alternatives>
     <email>kotprotiv@yandex.ru</email>
     <bio xml:lang="ru">
      <p>кандидат технических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of technical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Ивановский государственный политехнический университет</institution>
    </aff>
    <aff>
     <institution xml:lang="en">Ivanovo State Polytechnic University</institution>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2022-09-25T00:00:00+03:00">
    <day>25</day>
    <month>09</month>
    <year>2022</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2022-09-25T00:00:00+03:00">
    <day>25</day>
    <month>09</month>
    <year>2022</year>
   </pub-date>
   <volume>3</volume>
   <issue>3</issue>
   <fpage>41</fpage>
   <lpage>55</lpage>
   <history>
    <date date-type="received" iso-8601-date="2022-08-28T00:00:00+03:00">
     <day>28</day>
     <month>08</month>
     <year>2022</year>
    </date>
    <date date-type="accepted" iso-8601-date="2022-09-15T00:00:00+03:00">
     <day>15</day>
     <month>09</month>
     <year>2022</year>
    </date>
   </history>
   <self-uri xlink:href="https://chemintech.ru/en/nauka/article/82646/view">https://chemintech.ru/en/nauka/article/82646/view</self-uri>
   <abstract xml:lang="ru">
    <p>Связь между структурой цементного камня и механикой его разрушения устанавливается посредством изучения структурно-фазовых изменений в цементном камне под воздействием сильноагрессивной хлоридсодержащей среды. Для обеспечения объемной гидрофобизации цементного камня бетона предложено вводить в цементную смесь на стадии изготовления стеарат кальция в количестве 0.5 и 0.7 % мас. Изменение физико-механических характеристик образцов цементного камня фиксировали после 6 месяцев воздействия на них двухпроцентного раствора MgCl 2 . Из структурных составляющих исследованной марки портландцемента ЦЕМ I 42,5 Н низкоосновные гидросиликаты кальция, портландит и эттрингит быстрее поддаются разложению при коррозии бетона в жидких хлоридсодержащих средах, что оказывает основное влияние на изменение прочностных характеристик бетона. В результате воздействия жидких хлоридсодержащих сред происходит снижение на 35% прочности на сжатие цементного камня бетона. Введение в цементную смесь гидрофобизатора стеарата кальция приводит к формированию высоко кристаллической структуры при твердении цементного камня бетона. В структуре гидрофобизированного цементного камня повышено содержание гидросиликатов кальция и эттрингита, вследствие чего возрастает его прочность. При воздействии агрессивной хлоридсодержащей среды происходит незначительное снижение интенсивности кальцийсодержащих фаз, количество портландита в структуре цементного камня остается прежним. В результате хлоридной коррозии прочность гидрофобизиорованного бетона понижается на 8%.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>The relationship between the structure of cement stone and the mechanics of its destruction is established by studying the structural and phase changes occurring in cement stone under the influence of a highly aggressive chloride-containing medium. To ensure volumetric hydrophobization of concrete cement stone, it is proposed to introduce calcium stearate in the amount of 0.5 and 0.7 wt. % into the cement mixture at the manufacturing stage. Studies of changes in the physical and mechanical characteristics of cement stone samples were carried out after 6 months of exposure to a environment of a 2% MgCl 2 solution. Of the structural components of the studied brand of Portland cement CEM I 42.5N, low-base calcium hydrosilicates, portlandite and ettringite are more quickly decomposable during concrete corrosion in liquid chloride-containing media, which has a major effect on the change in the strength characteristics of concrete. As a result of exposure to liquid chloride-containing media, the compressive strength of concrete cement stone decreases by 35%. When the calcium stearate hydrophobizer is introduced into the cement mixture, a highly crystalline structure is formed during the hardening of concrete cement stone. In the structure of hydrophobized cement stone, the content of calcium hydrosilicates and ettringite is increased, resulting in an increase in strength. After exposure to an aggressive chloride-containing medium, there is a slight decrease in the intensity of calcium-containing phases, the amount of portlandite in the cement stone structure does not decrease. As a result of chloride corrosion, the strength of hydrophobized concrete decreases by 8%.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>объемная гидрофобизация</kwd>
    <kwd>гидрофобизированный бетон</kwd>
    <kwd>хлоридная коррозия</kwd>
    <kwd>рентгеноструктурный анализ</kwd>
    <kwd>прочность бетона</kwd>
    <kwd>структурно-фазовый состав</kwd>
    <kwd>коррозия бетона</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>volumetric hydrophobization</kwd>
    <kwd>hydrophobized concrete</kwd>
    <kwd>chloride corrosion</kwd>
    <kwd>X-ray structural analysis</kwd>
    <kwd>concrete strength</kwd>
    <kwd>structural and phase composition</kwd>
    <kwd>concrete corrosion</kwd>
   </kwd-group>
  </article-meta>
 </front>
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