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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">ekip</journal-id><journal-title-group><journal-title xml:lang="ru">Экология и промышленность России</journal-title><trans-title-group xml:lang="en"><trans-title>Ecology and Industry of Russia</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1816-0395</issn><issn pub-type="epub">2413-6042</issn><publisher><publisher-name>ООО "Калвис"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18412/1816-0395-2025-2-19-23</article-id><article-id custom-type="elpub" pub-id-type="custom">ekip-2840</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>НАУЧНЫЕ РАЗРАБОТКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>SCIENTIFIC DEVELOPMENTS</subject></subj-group></article-categories><title-group><article-title>Тонкодисперсные отходы титанового производства как добавка для изготовления строительных материалов</article-title><trans-title-group xml:lang="en"><trans-title>Finely-dispersed Wastes of Titanium Production as an Additive for Manufacturing of Building Materials</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>Пашкевич</surname><given-names>М.А.</given-names></name><name name-style="western" xml:lang="en"><surname>Pashkevich</surname><given-names>M.A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р техн. наук, зав. кафедрой</p></bio><bio xml:lang="en"><p>Dr. Sci. (Eng.), Head of the Department</p></bio><email xlink:type="simple">podpiska@kalvis.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>Евдокимова</surname><given-names>М.Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Evdokimova</surname><given-names>M.E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант</p></bio><bio xml:lang="en"><p>Post-graduate Student</p></bio><email xlink:type="simple">podpiska@kalvis.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский горный университет императрицы Екатерины II</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Empress Catherine II Saint Petersburg Mining University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>12</day><month>02</month><year>2025</year></pub-date><volume>29</volume><issue>2</issue><fpage>19</fpage><lpage>23</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ООО "Калвис", 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">ООО "Калвис"</copyright-holder><copyright-holder xml:lang="en">ООО "Калвис"</copyright-holder><license xlink:href="https://www.ecology-kalvis.ru/jour/about/submissions#copyrightNotice" xlink:type="simple"><license-p>https://www.ecology-kalvis.ru/jour/about/submissions#copyrightNotice</license-p></license></permissions><self-uri xlink:href="https://www.ecology-kalvis.ru/jour/article/view/2840">https://www.ecology-kalvis.ru/jour/article/view/2840</self-uri><abstract><p>Рассмотрена возможность использования титанового шлама, представляющего собой тонкодисперсный отход с высоким содержанием диоксида титана TiO2 и фторида кальция CaF2, в строительной промышленности в качестве агента, замещающего цементное вяжущее и улучшающего свойства бетонной композиции. Исследованы свойства модифицированных бетонов с разным процентом замещения вяжущего, определены характеристики прочности, пористости и водопоглощения по стандартизированным методикам, выявлен состав, показавший наилучшие характеристики. Описан механизм влияния основных соединений отхода на бетоны.</p></abstract><trans-abstract xml:lang="en"><p>The possibility of using titanium sludge, which is a finely-dispersed waste with high content of titanium dioxide TiO2 and calcium fluoride CaF2 in the construction industry as an agent replacing cement binder and improving the properties of concrete composition, is considered. The properties of modified concretes with different percentage of binder replacement were studied, the characteristics of strength, porosity and water absorption were determined according to standardized methods, and the composition showing the best characteristics was revealed. The mechanism of the effect of the main waste compounds on concrete is described.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>модифицированный бетон</kwd><kwd>титановый шлам</kwd><kwd>прочность на сжатие</kwd><kwd>водопоглощение</kwd><kwd>диоксид титана</kwd><kwd>фторид кальция</kwd><kwd>утилизация отходов</kwd></kwd-group><kwd-group xml:lang="en"><kwd>modified concrete</kwd><kwd>titanium sludge</kwd><kwd>compressive strength</kwd><kwd>water absorption</kwd><kwd>titanium dioxide</kwd><kwd>calcium fluoride</kwd><kwd>waste utilization</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">Wu H., Huang B., Shu X., Yin J. Utilization of solid wastes/byproducts from paper mills in Controlled Low Strength Material (CLSM). Construction and Building Materials. 2016. Vol. 118. P. 155—163.</mixed-citation><mixed-citation xml:lang="en">Wu H., Huang B., Shu X., Yin J. 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