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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">10.21122/2227-1031-2016-15-4-281-286</article-id><article-id custom-type="elpub" pub-id-type="custom">sat-931</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>ВЛИЯНИЕ ЦИТРАТА НАТРИЯ НА ПРОЦЕСС ФОРМИРОВАНИЯ ЦЕМЕНТНОГО КАМНЯ В ГЛИНОЗЕМИСТОМ ВЯЖУЩЕМ</article-title><trans-title-group xml:lang="en"><trans-title>SODIUM CITRATE INFLUENCE ON FORMATION OF CEMENT STONE IN THE ALUMINOUS BINDER</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>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>Доктор технических наук, профессор</p><p>Адрес для переписки: Леонович Сергей Николаевич  – Белорусский национальный технический университет, просп. Независимости, 150, 220013, г. Минск, Республика Беларусь Тел.: +375 17 265-96-76  leonovichsn@tut.by</p><p> </p></bio><bio xml:lang="en"><p>Professor, PhD in Engineering</p><p>Address for correspondence: Leonovich Sergey N. – Belаrusian National Technical University, 150 Nezavisimosty Ave.,   220013, Minsk, Republic of Belarus Tel.: +375 17 265-96-76  leonovichsn@tut.by</p></bio><email xlink:type="simple">leonovichsn@tut.by</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>Свиридов</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Sviridov</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"><p>Professor, PhD in Chemistry</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Щукин</surname><given-names>Г. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Shchukin</surname><given-names>G. L.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"><p>PhD in Chemistry</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Беланович</surname><given-names>А. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Belanovich</surname><given-names>A. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кандидат  химических наук</p></bio><bio xml:lang="en"><p>PhD in Chemistry</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Савенко</surname><given-names>В. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Savenko</surname><given-names>V. P.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карпушенков</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Karpushenkov</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кандидат  химических наук</p></bio><bio xml:lang="en"><p>PhD in Chemistry</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский национальный технический университет</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Belarusian National Technical University</institution><country>Belarus</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Белорусский государственный университет</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Belаrusian State University</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>22</day><month>08</month><year>2016</year></pub-date><volume>15</volume><issue>4</issue><fpage>281</fpage><lpage>286</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Леонович С.Н., Свиридов Д.В., Щукин Г.Л., Беланович А.Л., Савенко В.П., Карпушенков С.А., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Леонович С.Н., Свиридов Д.В., Щукин Г.Л., Беланович А.Л., Савенко В.П., Карпушенков С.А.</copyright-holder><copyright-holder xml:lang="en">Leonovich S.N., Sviridov D.V., Shchukin G.L., Belanovich A.L., Savenko V.P., Karpushenkov S.A.</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/931">https://sat.bntu.by/jour/article/view/931</self-uri><abstract/><trans-abstract xml:lang="en"><p>The paper deals with the effect of sodium citrate on the formation of a cement stone in the aluminous binder. Formation of cement stone framework in cement hydraulic binder is accompanied with complicated physical and chemical processes of interphase interactions and dispersion, these processes are predicated on qualitative and quantitative composition of the cement mortar, continuous changes in its properties from preparation stage till curing. Addition of sodium citrate to tempering water enhances hydration of both Portland cement and calcium aluminate cement. Process pertaining to an increase of cement hydration rate is considered as a consequence of destruction in surface formations and exclusion of damping effect in respect of hydration rate and hydrolysis of products resulted from interaction of clinker material with tempering. It has been established that sodium citrate makes it possible to control processes of hydration, hydrolysis, binding and curing for cement mass. High degree of hydration of aluminous cement in the presence of sodium citrate provides fast binding and curing of binder, low porosity and rather high compression breaking strength of cement stone for all curing stages. An increase in concentration of sodium citrate in cement mixture up to 10 % of the cement mass exerts an influence not only on the process of cement mortar liquefaction, reduction of time for cement mass setting and hardening but also increases compression strength of cement stone. An analysis of the structure for cleavage surface of cement stone gives ground to declare that the addition of sodium citrate provides cement stone sealing and reduces its water absorption.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>глиноземистое вяжущее</kwd><kwd>цементный камень</kwd><kwd>водопоглощение</kwd><kwd>цитрат натрия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>aluminous binder</kwd><kwd>cement stone</kwd><kwd>water absorption</kwd><kwd>sodium citrate</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">Кузнецова, Т. В. Глиноземистые цементы / Т. В. Кузнецова, Й. Талабер. М.: Стройиздат, 1988. 266 с.</mixed-citation><mixed-citation xml:lang="en">Kuznetsova T. V., Talaber J. 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