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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Construction Materials and Products</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Construction Materials and Products</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Строительные материалы и изделия</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="online">2618-7183</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">43842</article-id>
   <article-id pub-id-type="doi">10.34031/2618-7183-2021-4-1-5-17</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">UTILIZATION OF GYPSUM-BEARING WASTES IN MATERIALS  OF THE CONSTRUCTION INDUSTRY AND OTHER AREAS</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>UTILIZATION OF GYPSUM-BEARING WASTES IN MATERIALS  OF THE CONSTRUCTION INDUSTRY AND OTHER AREAS</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Алфимова</surname>
       <given-names>Н. И.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Alfimova</surname>
       <given-names>Nataliya I.</given-names>
      </name>
     </name-alternatives>
     <email>alfimovan@mail.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 contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Пириева</surname>
       <given-names>С. Ю.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Pirieva</surname>
       <given-names>Sevda Yunisovna</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Титенко</surname>
       <given-names>А. А.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Titenko</surname>
       <given-names>A. A.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Белгородский государственный технологический университет им. В.Г. Шухова</institution>
     <city>Белгород</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Белгородский государственный технологический университет им. В.Г. Шухова</institution>
     <city>Белгород</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Белгородский государственный технологический университет им. В.Г. Шухова.</institution>
     <city>Белгород</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Белгородский государственный технологический университет им. В.Г. Шухова.</institution>
     <city>Белгород</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">ООО «Инжиниринговый центр»  НИУ «БелГУ»</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">ООО «Инжиниринговый центр»  НИУ «БелГУ»</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <volume>4</volume>
   <issue>1</issue>
   <fpage>5</fpage>
   <lpage>17</lpage>
   <self-uri xlink:href="http://bstu-journals.ru/archives/10828">http://bstu-journals.ru/archives/10828</self-uri>
   <abstract xml:lang="ru">
    <p>rational environmental management is one of the priorities of the technological development of the Russian Federation and most countries of the world. Particularly important in this area is the work undertaken with previously generated and accumulated waste, a whole group of which is gypsum-bearing wastes (GBW), which includes by-products of various industries: phosphogypsum, borogypsum, chlorogypsum, ferrogypsum, citrogypsum, vitamin gypsum, etc. GBW features are similar compositions, prevalence, perennial volumes of stored reserves with stable dynamics of annual growth. This determines the relevance of research on the development of a unified methodology for converting GBW of various types into target products particularly for construction purposes, providing maximum energy efficiency and minimal generation of secondary waste. The starting point of the research is the monitoring of approaches developed by the scientific community which are presented in the article. It is shown that researchers are exploring several main areas of GBW conversion: components of Portland cement and clinker; single and multicomponent binders; direct raw materials for the production of building materials; and road construction. The latter two directions have the greatest potential capacity for the consumption of GBW. The general level of research on the issue is not exhaustive, but has the potential to improve on existing methods of processing and application and promote the search for new and more efficient methods</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>rational environmental management is one of the priorities of the technological development of the Russian Federation and most countries of the world. Particularly important in this area is the work undertaken with previously generated and accumulated waste, a whole group of which is gypsum-bearing wastes (GBW), which includes by-products of various industries: phosphogypsum, borogypsum, chlorogypsum, ferrogypsum, citrogypsum, vitamin gypsum, etc. GBW features are similar compositions, prevalence, perennial volumes of stored reserves with stable dynamics of annual growth. This determines the relevance of research on the development of a unified methodology for converting GBW of various types into target products particularly for construction purposes, providing maximum energy efficiency and minimal generation of secondary waste. The starting point of the research is the monitoring of approaches developed by the scientific community which are presented in the article. It is shown that researchers are exploring several main areas of GBW conversion: components of Portland cement and clinker; single and multicomponent binders; direct raw materials for the production of building materials; and road construction. The latter two directions have the greatest potential capacity for the consumption of GBW. The general level of research on the issue is not exhaustive, but has the potential to improve on existing methods of processing and application and promote the search for new and more efficient methods</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>gypsum-bearing wastes</kwd>
    <kwd>phosphogypsum</kwd>
    <kwd>borogypsum; citrogypsum</kwd>
    <kwd>gypsum α-hemihydrate</kwd>
    <kwd>gypsum β-hemihydrate</kwd>
    <kwd>cement</kwd>
    <kwd>mortars</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>gypsum-bearing wastes</kwd>
    <kwd>phosphogypsum</kwd>
    <kwd>borogypsum; citrogypsum</kwd>
    <kwd>gypsum α-hemihydrate</kwd>
    <kwd>gypsum β-hemihydrate</kwd>
    <kwd>cement</kwd>
    <kwd>mortars</kwd>
   </kwd-group>
   <funding-group>
    <funding-statement xml:lang="ru">Work realized within the framework of the project &quot;Creation of a complex technology for recycling gypsum-containing waste of industrial enterprises&quot;, that is implemented on the platform of the Belgorod Scientific and Educational Center of the world level &quot;Innovative Solutions in the Agricultural Sector&quot;</funding-statement>
    <funding-statement xml:lang="en">Work realized within the framework of the project &quot;Creation of a complex technology for recycling gypsum-containing waste of industrial enterprises&quot;, that is implemented on the platform of the Belgorod Scientific and Educational Center of the world level &quot;Innovative Solutions in the Agricultural Sector&quot;</funding-statement>
   </funding-group>
  </article-meta>
 </front>
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 </body>
 <back>
  <ref-list>
   <ref id="B1">
    <label>1.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Plaster materials and products (production and use). Directory. Ferronskaya A.V., Publishing House ASV, Russian Federation, 2004. 488 p.</mixed-citation>
     <mixed-citation xml:lang="en">Plaster materials and products (production and use). Directory. Ferronskaya A.V., Publishing House ASV, Russian Federation, 2004. 488 p.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B2">
    <label>2.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Mineral Commodity Summaries, 2021. Department of the Interior, U.S. Geological Survey. P. 122 - 123. https://pubs.usgs.gov/periodicals/mcs2021/mcs2021.pdf</mixed-citation>
     <mixed-citation xml:lang="en">Mineral Commodity Summaries, 2021. Department of the Interior, U.S. Geological Survey. P. 122 - 123. https://pubs.usgs.gov/periodicals/mcs2021/mcs2021.pdf</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B3">
    <label>3.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Rashad A.M. Phosphogypsum as a construction material. Journal of Cleaner Production. 2017. 166. P. 732 - 743. doi:10.1016/j.jclepro.2017.08.049</mixed-citation>
     <mixed-citation xml:lang="en">Rashad A.M. Phosphogypsum as a construction material. Journal of Cleaner Production. 2017. 166. P. 732 - 743. doi:10.1016/j.jclepro.2017.08.049</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B4">
    <label>4.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Tayibi H., Choura M., Lo´pez F.A., Alguacil F.J., Lo´pez-Delgado A. Environmental impact and man-agement of phosphogypsum. Journal of Environmental Management. 2009. 90 (8). P. 2377 - 2386. https://doi.org/10.1016/j.jenvman.2009.03.007</mixed-citation>
     <mixed-citation xml:lang="en">Tayibi H., Choura M., Lo´pez F.A., Alguacil F.J., Lo´pez-Delgado A. Environmental impact and man-agement of phosphogypsum. Journal of Environmental Management. 2009. 90 (8). P. 2377 - 2386. https://doi.org/10.1016/j.jenvman.2009.03.007</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B5">
    <label>5.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Huang Y., Qian J., Kang X., Yu J., Fan Y., Dang Y., Zhang W., Wang, S. Belite-calcium sulfoalumi-nate cement prepared with phosphogypsum: Influence of P2O5 and F on the clinker formation and cement performances. Construction and Building Materials. 2019. 203. P. 432 - 442. https://doi.org/10.1016/j.conbuildmat.2019.01.112</mixed-citation>
     <mixed-citation xml:lang="en">Huang Y., Qian J., Kang X., Yu J., Fan Y., Dang Y., Zhang W., Wang, S. Belite-calcium sulfoalumi-nate cement prepared with phosphogypsum: Influence of P2O5 and F on the clinker formation and cement performances. Construction and Building Materials. 2019. 203. P. 432 - 442. https://doi.org/10.1016/j.conbuildmat.2019.01.112</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B6">
    <label>6.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Kacimi L., Simon-Masseron A., Ghomari A., Derriche Z. Reduction of clinkerization temperature by using phosphogypsum. Journal of Hazardous Materials. 2006. 137. P. 129 - 137. doi:10.1016/j.jhazmat.2005.12.053</mixed-citation>
     <mixed-citation xml:lang="en">Kacimi L., Simon-Masseron A., Ghomari A., Derriche Z. Reduction of clinkerization temperature by using phosphogypsum. Journal of Hazardous Materials. 2006. 137. P. 129 - 137. doi:10.1016/j.jhazmat.2005.12.053</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B7">
    <label>7.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Islam G.M.S., Chowdhury F.H., Raihan M.T., Amit S.K.S., Islam M.R. Effect of Phosphogypsum on the Properties of Portland Cement. Procedia Engineering. 2017. 171. P. 744 - 751. https://doi.org/10.1016/j.proeng.2017.01.440</mixed-citation>
     <mixed-citation xml:lang="en">Islam G.M.S., Chowdhury F.H., Raihan M.T., Amit S.K.S., Islam M.R. Effect of Phosphogypsum on the Properties of Portland Cement. Procedia Engineering. 2017. 171. P. 744 - 751. https://doi.org/10.1016/j.proeng.2017.01.440</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B8">
    <label>8.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Huang Y., Qian J., Lu L., Zhang W., Wang S., Wang W., Cheng, X. Phosphogypsum as a component of calcium sulfoaluminate cement: Hazardous elements immobilization, radioactivity and performances. Journal of Cleaner Production. 2020. 2481. 119287. https://doi.org/10.1016/j.jclepro.2019.119287</mixed-citation>
     <mixed-citation xml:lang="en">Huang Y., Qian J., Lu L., Zhang W., Wang S., Wang W., Cheng, X. Phosphogypsum as a component of calcium sulfoaluminate cement: Hazardous elements immobilization, radioactivity and performances. Journal of Cleaner Production. 2020. 2481. 119287. https://doi.org/10.1016/j.jclepro.2019.119287</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B9">
    <label>9.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Taher M.A. Influence of thermally treated phosphogypsum on the properties of Portland slag cement. Resources, Conservation and Recycling. 2007. 52 (1). P. 28 - 38. https://doi.org/10.1016/j.resconrec.2007.01.008</mixed-citation>
     <mixed-citation xml:lang="en">Taher M.A. Influence of thermally treated phosphogypsum on the properties of Portland slag cement. Resources, Conservation and Recycling. 2007. 52 (1). P. 28 - 38. https://doi.org/10.1016/j.resconrec.2007.01.008</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B10">
    <label>10.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Ozkul M.H. Utilization of citro- and desulphogypsum as set retarders in Portland cement. Cement and Concrete Research. 2000. 30. P. 1755 - 1758. https://doi.org/10.1016/S0008-8846(00)00409-9</mixed-citation>
     <mixed-citation xml:lang="en">Ozkul M.H. Utilization of citro- and desulphogypsum as set retarders in Portland cement. Cement and Concrete Research. 2000. 30. P. 1755 - 1758. https://doi.org/10.1016/S0008-8846(00)00409-9</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B11">
    <label>11.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Bensted J. Early hydration behaviour of portland cement containing boro-, citro- and desulphogyp-sum. Cement and Concrete Research. 1980. 10 (2). P. 165 - 171. https://doi.org/10.1016/0008-8846(80)90073-3</mixed-citation>
     <mixed-citation xml:lang="en">Bensted J. Early hydration behaviour of portland cement containing boro-, citro- and desulphogyp-sum. Cement and Concrete Research. 1980. 10 (2). P. 165 - 171. https://doi.org/10.1016/0008-8846(80)90073-3</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B12">
    <label>12.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Elbeyli İ.Y., Derun M., Gülen J., Pişkin S. Thermal analysis of borogypsum and its effects on the physical properties of Portland cement. Cement and Concrete Research. 2003. 33 (11). P. 1729 - 1735. https://doi.org/10.1016/S0008-8846(03)00110-8</mixed-citation>
     <mixed-citation xml:lang="en">Elbeyli İ.Y., Derun M., Gülen J., Pişkin S. Thermal analysis of borogypsum and its effects on the physical properties of Portland cement. Cement and Concrete Research. 2003. 33 (11). P. 1729 - 1735. https://doi.org/10.1016/S0008-8846(03)00110-8</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B13">
    <label>13.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Sevim U.K., Tumen Y. Strength and fresh properties of borogypsum concrete. Construction and Building Materials. 2013. 48. P. 342 - 347. http://dx.doi.org/10.1016/j.conbuildmat.2013.06.054</mixed-citation>
     <mixed-citation xml:lang="en">Sevim U.K., Tumen Y. Strength and fresh properties of borogypsum concrete. Construction and Building Materials. 2013. 48. P. 342 - 347. http://dx.doi.org/10.1016/j.conbuildmat.2013.06.054</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B14">
    <label>14.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Yang J., Liu W., Zhang L., Xiao B. Preparation of load-bearing building materials from autoclaved phosphogypsum. Construction and Building Materials. 2009. 23. P. 687 - 693. https://doi.org/10.1016/j.conbuildmat.2008.02.011</mixed-citation>
     <mixed-citation xml:lang="en">Yang J., Liu W., Zhang L., Xiao B. Preparation of load-bearing building materials from autoclaved phosphogypsum. Construction and Building Materials. 2009. 23. P. 687 - 693. https://doi.org/10.1016/j.conbuildmat.2008.02.011</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B15">
    <label>15.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Myasnikov N.F., Bershakov N.G., Kozlov V.P., Naumov E.G., Shevchenko N.N. Gypsum binder preparation method. Patent RF, no. 2210540, 2003.</mixed-citation>
     <mixed-citation xml:lang="en">Myasnikov N.F., Bershakov N.G., Kozlov V.P., Naumov E.G., Shevchenko N.N. Gypsum binder preparation method. Patent RF, no. 2210540, 2003.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B16">
    <label>16.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Semlyov V.S., Reutov V.A., Kondrikov N.B. Method of recycling gypsiferous raw materials. Patent RF, no. 2324654, 2008.</mixed-citation>
     <mixed-citation xml:lang="en">Semlyov V.S., Reutov V.A., Kondrikov N.B. Method of recycling gypsiferous raw materials. Patent RF, no. 2324654, 2008.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B17">
    <label>17.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Gubskaya A.G., Podluzsky E.Ya., Melenko V.S. Production of gypsum binder and products from natural and industrial raw materials in the Republic of Belarus. Building Materials. 2018. 3. P. 73 - 75. (rus.)</mixed-citation>
     <mixed-citation xml:lang="en">Gubskaya A.G., Podluzsky E.Ya., Melenko V.S. Production of gypsum binder and products from natural and industrial raw materials in the Republic of Belarus. Building Materials. 2018. 3. P. 73 - 75. (rus.)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B18">
    <label>18.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Ma B., Jin Z., Su Y., Lu W., Qi H., Hu P. Utilization of hemihydrate phosphogypsum for the prepara-tion of porous sound absorbing material. Construction and Building Materials. 2020. 234. 117346. https://doi.org/10.1016/j.conbuildmat.2019.117346</mixed-citation>
     <mixed-citation xml:lang="en">Ma B., Jin Z., Su Y., Lu W., Qi H., Hu P. Utilization of hemihydrate phosphogypsum for the prepara-tion of porous sound absorbing material. Construction and Building Materials. 2020. 234. 117346. https://doi.org/10.1016/j.conbuildmat.2019.117346</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B19">
    <label>19.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Li X., Zhang Q., Ke B., Wang X., Li L., Li X., Mao S. Insight into the effect of maleic acid on the preparation of a-hemihydrate gypsum from phosphogypsum in Na2SO4 solution. Journal of Crystal Growth. 2018. 493. P. 34 - 40. https://doi.org/10.1016/j.jcrysgro.2018.04.025</mixed-citation>
     <mixed-citation xml:lang="en">Li X., Zhang Q., Ke B., Wang X., Li L., Li X., Mao S. Insight into the effect of maleic acid on the preparation of a-hemihydrate gypsum from phosphogypsum in Na2SO4 solution. Journal of Crystal Growth. 2018. 493. P. 34 - 40. https://doi.org/10.1016/j.jcrysgro.2018.04.025</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B20">
    <label>20.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Li X., Zhang Q., Shen Z., Li L., Li X., Ma S. L-aspartic acid: A crystal modifier for preparation of hemihydrate from phosphogypsum in CaCl2 solution. Journal of Crystal Growth. 2019. 511. P. 48 - 55. https://doi.org/10.1016/j.jcrysgro.2019.01.027</mixed-citation>
     <mixed-citation xml:lang="en">Li X., Zhang Q., Shen Z., Li L., Li X., Ma S. L-aspartic acid: A crystal modifier for preparation of hemihydrate from phosphogypsum in CaCl2 solution. Journal of Crystal Growth. 2019. 511. P. 48 - 55. https://doi.org/10.1016/j.jcrysgro.2019.01.027</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B21">
    <label>21.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Lu W., Ma B., Su Y., He X., Jin Z., Qi H. Preparation of a-hemihydrate gypsum from phosphogyp-sum in recycling CaCl2 solution. Construction and Building Materials. 2019. 214. P. 399 - 412. https://doi.org/10.1016/j.conbuildmat.2019.04.148</mixed-citation>
     <mixed-citation xml:lang="en">Lu W., Ma B., Su Y., He X., Jin Z., Qi H. Preparation of a-hemihydrate gypsum from phosphogyp-sum in recycling CaCl2 solution. Construction and Building Materials. 2019. 214. P. 399 - 412. https://doi.org/10.1016/j.conbuildmat.2019.04.148</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B22">
    <label>22.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Ma B., Lu W., Su Y., Li Y., Gao C., He X. Synthesis of a-hemihydrate gypsum from cleaner phos-phogypsum. Journal of Cleaner Production. 2018. 195. 396e405 https://doi.org/10.1016/j.jclepro.2018.05.228</mixed-citation>
     <mixed-citation xml:lang="en">Ma B., Lu W., Su Y., Li Y., Gao C., He X. Synthesis of a-hemihydrate gypsum from cleaner phos-phogypsum. Journal of Cleaner Production. 2018. 195. 396e405 https://doi.org/10.1016/j.jclepro.2018.05.228</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B23">
    <label>23.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Guan B., Yang L., Wu Z., Shen Z., Ma X., Ye Q. Preparation of α-calcium sulfate hemihydrate from FGD gypsum in K, Mg-containing concentrated CaCl2 solution under mild conditions. Fuel. 2009. 88. P. 1286 - 1293. doi:10.1016/j.fuel.2009.01.004</mixed-citation>
     <mixed-citation xml:lang="en">Guan B., Yang L., Wu Z., Shen Z., Ma X., Ye Q. Preparation of α-calcium sulfate hemihydrate from FGD gypsum in K, Mg-containing concentrated CaCl2 solution under mild conditions. Fuel. 2009. 88. P. 1286 - 1293. doi:10.1016/j.fuel.2009.01.004</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B24">
    <label>24.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Shen Z.X., Guan B.H., Fu H.L., Yang L. Effect of Potassium Sodium Tartrate and Sodium Citrate on the Preparation of a-Calcium Sulfate Hemihydrate from Flue Gas Desulfurization Gypsum in a Concentrated Electrolyte Solution. J. Am. Ceram. Soc., 2009. 92 (12). P. 2894 - 2899. doi:10.1111/j.1551-2916.2009.03330.x</mixed-citation>
     <mixed-citation xml:lang="en">Shen Z.X., Guan B.H., Fu H.L., Yang L. Effect of Potassium Sodium Tartrate and Sodium Citrate on the Preparation of a-Calcium Sulfate Hemihydrate from Flue Gas Desulfurization Gypsum in a Concentrated Electrolyte Solution. J. Am. Ceram. Soc., 2009. 92 (12). P. 2894 - 2899. doi:10.1111/j.1551-2916.2009.03330.x</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B25">
    <label>25.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Guan B., Kong B., Fu H., Yu J., Jiang G., Yang L. Pilot scale preparation of a-calcium sulfate hemi-hydrate from FGD gypsum in Ca-K-Mg aqueous solution under atmospheric pressure. Fuel. 2012. 98. P. 48 - 54. http://dx.doi.org/10.1016/j.fuel.2012.03.032</mixed-citation>
     <mixed-citation xml:lang="en">Guan B., Kong B., Fu H., Yu J., Jiang G., Yang L. Pilot scale preparation of a-calcium sulfate hemi-hydrate from FGD gypsum in Ca-K-Mg aqueous solution under atmospheric pressure. Fuel. 2012. 98. P. 48 - 54. http://dx.doi.org/10.1016/j.fuel.2012.03.032</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B26">
    <label>26.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Tarasova G.I., Sverguzova S.V., Bubnova N.Yu., Kozlov V.P., Naumov E.G. Method of gypsum arti-cle making. Patent RF, no. 2132310, 1999.</mixed-citation>
     <mixed-citation xml:lang="en">Tarasova G.I., Sverguzova S.V., Bubnova N.Yu., Kozlov V.P., Naumov E.G. Method of gypsum arti-cle making. Patent RF, no. 2132310, 1999.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B27">
    <label>27.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Sverguzova S.V., Tarasova G.I., Bubnova N.Yu. Promising technologies for the processing of cit-rogypsum. Ecology and industry of Russia. 1998. 8. P. 20 - 24. (rus.)</mixed-citation>
     <mixed-citation xml:lang="en">Sverguzova S.V., Tarasova G.I., Bubnova N.Yu. Promising technologies for the processing of cit-rogypsum. Ecology and industry of Russia. 1998. 8. P. 20 - 24. (rus.)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B28">
    <label>28.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Sverguzova S.V., Bubnova N.Yu., Tarasova G.I. Utilization of gypsum-bearing waste by energy-saving technology. Scienc-product. 2001. 3. P. 41 - 43. (rus.)</mixed-citation>
     <mixed-citation xml:lang="en">Sverguzova S.V., Bubnova N.Yu., Tarasova G.I. Utilization of gypsum-bearing waste by energy-saving technology. Scienc-product. 2001. 3. P. 41 - 43. (rus.)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B29">
    <label>29.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Sverguzova S.V., Chernysheva N.V., Chernysh L.I., Shamshurov A.V. The in-fluence of the pro-cessing conditions of citrogyp-sum on the composition of the obtained gypsum binder. Building Materials. 2010. 7. P. 31 - 32. 9 (rus.)</mixed-citation>
     <mixed-citation xml:lang="en">Sverguzova S.V., Chernysheva N.V., Chernysh L.I., Shamshurov A.V. The in-fluence of the pro-cessing conditions of citrogyp-sum on the composition of the obtained gypsum binder. Building Materials. 2010. 7. P. 31 - 32. 9 (rus.)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B30">
    <label>30.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Sverguzova S.V., Tarasova G.I., Chernysheva N.V., Chernysh L.I. Theoretical substantiation of the possibility of non-fired de-hydration of citrogypsum. Bulletin of BSTU named after V.G. Shukhov. 2010. 2. P. 117 - 121. (rus.)</mixed-citation>
     <mixed-citation xml:lang="en">Sverguzova S.V., Tarasova G.I., Chernysheva N.V., Chernysh L.I. Theoretical substantiation of the possibility of non-fired de-hydration of citrogypsum. Bulletin of BSTU named after V.G. Shukhov. 2010. 2. P. 117 - 121. (rus.)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B31">
    <label>31.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Chernysheva N.V., Sverguzova S.V., Tarasova G.I. Obtaining a gypsum binder from phosphogypsum of Tunisia. Building Materials. 2010. 7. P. 28 - 30. (rus.)</mixed-citation>
     <mixed-citation xml:lang="en">Chernysheva N.V., Sverguzova S.V., Tarasova G.I. Obtaining a gypsum binder from phosphogypsum of Tunisia. Building Materials. 2010. 7. P. 28 - 30. (rus.)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B32">
    <label>32.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Alfimova N.I., Pirieva S.Yu., Elistratkin M.Yu., Kozhuhova N.I., Titenko A.A. Production methods of binders containing gypsum-bearing wastes: a review. Bulletin of BSTU named after V.G. Shukhov. 2020. 11. P. 8 - 23. doi: 10.34031/2071-7318-2020-5-11-8-23 (rus.)</mixed-citation>
     <mixed-citation xml:lang="en">Alfimova N.I., Pirieva S.Yu., Elistratkin M.Yu., Kozhuhova N.I., Titenko A.A. Production methods of binders containing gypsum-bearing wastes: a review. Bulletin of BSTU named after V.G. Shukhov. 2020. 11. P. 8 - 23. doi: 10.34031/2071-7318-2020-5-11-8-23 (rus.)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B33">
    <label>33.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Jin Z., Ma Baoguo, Su Y., Lu W., Qi H., Hu P. Effect of calcium sulphoaluminate cement on me-chanical strength and waterproof properties of beta-hemihydrate phosphogypsum. Construction and Build-ing Materials. 2020. 242. 118198. https://doi.org/10.1016/j.conbuildmat.2020.118198</mixed-citation>
     <mixed-citation xml:lang="en">Jin Z., Ma Baoguo, Su Y., Lu W., Qi H., Hu P. Effect of calcium sulphoaluminate cement on me-chanical strength and waterproof properties of beta-hemihydrate phosphogypsum. Construction and Build-ing Materials. 2020. 242. 118198. https://doi.org/10.1016/j.conbuildmat.2020.118198</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B34">
    <label>34.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Yang L., Zhang Y., Yan Y. Utilization of original phosphogypsum as raw material for the preparation of self-leveling mortar. Journal of Cleaner Production. 2016. 127. P. 204 - 213. http://dx.doi.org/10.1016/j.jclepro.2016.04.054</mixed-citation>
     <mixed-citation xml:lang="en">Yang L., Zhang Y., Yan Y. Utilization of original phosphogypsum as raw material for the preparation of self-leveling mortar. Journal of Cleaner Production. 2016. 127. P. 204 - 213. http://dx.doi.org/10.1016/j.jclepro.2016.04.054</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B35">
    <label>35.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Chernysh L.I. Improving the efficiency of building composites obtained using industrial waste. Ecol-ogy and industry. 2014. 4. P. 87 - 89. (rus.)</mixed-citation>
     <mixed-citation xml:lang="en">Chernysh L.I. Improving the efficiency of building composites obtained using industrial waste. Ecol-ogy and industry. 2014. 4. P. 87 - 89. (rus.)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B36">
    <label>36.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Lukyanova A.N., Starostina I.V. Building composite materials based on modified gypsum binders ob-tained from industrial wastes. Fundamental research. 2013. 4 (4). P. 818 - 822. (rus.)</mixed-citation>
     <mixed-citation xml:lang="en">Lukyanova A.N., Starostina I.V. Building composite materials based on modified gypsum binders ob-tained from industrial wastes. Fundamental research. 2013. 4 (4). P. 818 - 822. (rus.)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B37">
    <label>37.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Romero-Hermida M.I., Borrero-López A.M., Alejandre F.J., Flores-Alés V., Santos A., Franco J.M., Esquivias L. Phosphogypsum waste lime as a promising substitute of commercial limes: A rheological ap-proach. Cement and Concrete Composites. 2019. 95. P. 205 - 216. https://doi.org/10.1016/j.cemconcomp.2018.11.007</mixed-citation>
     <mixed-citation xml:lang="en">Romero-Hermida M.I., Borrero-López A.M., Alejandre F.J., Flores-Alés V., Santos A., Franco J.M., Esquivias L. Phosphogypsum waste lime as a promising substitute of commercial limes: A rheological ap-proach. Cement and Concrete Composites. 2019. 95. P. 205 - 216. https://doi.org/10.1016/j.cemconcomp.2018.11.007</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B38">
    <label>38.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Vinnichenko V.I., Kostyuk T.A., Mokrenko N.N., Ivaschenko T.G. The possibility of obtaining building materials based on phosphogypsum. Dry Build. Mixes. 2014. 3. P. 18 - 19. (rus.)</mixed-citation>
     <mixed-citation xml:lang="en">Vinnichenko V.I., Kostyuk T.A., Mokrenko N.N., Ivaschenko T.G. The possibility of obtaining building materials based on phosphogypsum. Dry Build. Mixes. 2014. 3. P. 18 - 19. (rus.)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B39">
    <label>39.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Zhou J., Sheng Z., Li T., Shu Z., Wang Y. Preparation of hardened tiles from waste phosphogypsum by a new intermittent pressing hydration. Ceramics International. 2016. 42 (61). P. 7237 - 7245 https://doi-org.ezproxy.libfl.ru/10.1016/j.ceramint.2016.01.117</mixed-citation>
     <mixed-citation xml:lang="en">Zhou J., Sheng Z., Li T., Shu Z., Wang Y. Preparation of hardened tiles from waste phosphogypsum by a new intermittent pressing hydration. Ceramics International. 2016. 42 (61). P. 7237 - 7245 https://doi-org.ezproxy.libfl.ru/10.1016/j.ceramint.2016.01.117</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B40">
    <label>40.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Zhou J., Li X., Zhao Y., Shu Z., Wang Y., Zhang Y., Shen X. Preparation of paper-free and fiber-free plasterboard with high strength using phosphogypsum. Construction and Building Materials. 2020. 243. 118091. https://doi.org/10.1016/j.conbuildmat.2020.118091</mixed-citation>
     <mixed-citation xml:lang="en">Zhou J., Li X., Zhao Y., Shu Z., Wang Y., Zhang Y., Shen X. Preparation of paper-free and fiber-free plasterboard with high strength using phosphogypsum. Construction and Building Materials. 2020. 243. 118091. https://doi.org/10.1016/j.conbuildmat.2020.118091</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B41">
    <label>41.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Petropavlovskaya V.B., Belov V.V., Novichenkova T.B., Buryanov A.F., Poleonova Yu.Yu., Petro-pavlovsky, K.S. Resource-saving non-fired gypsum composites. Building Materials. 2015. 6. P. 79 - 81. (rus.)</mixed-citation>
     <mixed-citation xml:lang="en">Petropavlovskaya V.B., Belov V.V., Novichenkova T.B., Buryanov A.F., Poleonova Yu.Yu., Petro-pavlovsky, K.S. Resource-saving non-fired gypsum composites. Building Materials. 2015. 6. P. 79 - 81. (rus.)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B42">
    <label>42.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Petropavlovskaya V.B.; Novichenkova T.B.; Buryanov A.F. Improving the technological properties of non-fired hyper-pressed gypsum products. Bulletin of BSTU named after V.G. Shukhov. 2013. 6. P. 75 - 78. (rus)</mixed-citation>
     <mixed-citation xml:lang="en">Petropavlovskaya V.B.; Novichenkova T.B.; Buryanov A.F. Improving the technological properties of non-fired hyper-pressed gypsum products. Bulletin of BSTU named after V.G. Shukhov. 2013. 6. P. 75 - 78. (rus)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B43">
    <label>43.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Petropavlovskaya V.B., Buryanov A.F., Novichenkova T.B., Poleonova Yu.Yu. About the effect of nanofillers on the properties of non-fired gypsum composites. Actual problems of modern science, technol-ogy and education. 2013. Vol. 2. 71. P. 217 - 220. (rus.)</mixed-citation>
     <mixed-citation xml:lang="en">Petropavlovskaya V.B., Buryanov A.F., Novichenkova T.B., Poleonova Yu.Yu. About the effect of nanofillers on the properties of non-fired gypsum composites. Actual problems of modern science, technol-ogy and education. 2013. Vol. 2. 71. P. 217 - 220. (rus.)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B44">
    <label>44.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Petropavlovskaya V.B. Low-energy gypsum materials and products based on industrial waste. Build-ing Materials. 2006. 7. P. 8 - 9. (rus.)</mixed-citation>
     <mixed-citation xml:lang="en">Petropavlovskaya V.B. Low-energy gypsum materials and products based on industrial waste. Build-ing Materials. 2006. 7. P. 8 - 9. (rus.)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B45">
    <label>45.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Mirsaev R.N., Babkov V.V., Nedoseko I.V., Yunusova S.S., Akhmadulina I.I., Shayakhmetov U.S. Structural formation and hardening of pressed compositions based on calcium sulfate dehydrate. Building Materials. 2009. 6. P. 6 - 9. (rus.)</mixed-citation>
     <mixed-citation xml:lang="en">Mirsaev R.N., Babkov V.V., Nedoseko I.V., Yunusova S.S., Akhmadulina I.I., Shayakhmetov U.S. Structural formation and hardening of pressed compositions based on calcium sulfate dehydrate. Building Materials. 2009. 6. P. 6 - 9. (rus.)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B46">
    <label>46.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Alfimova N.I., Titenko A.A., Nikulin I.S., Galdun Yu.V., Pirieva S.Yu., Elistratkin M.Yu. Raw mix-ture for modified citrogypsum articles and method of their production. Patent RF, no. 2693808, 2018.</mixed-citation>
     <mixed-citation xml:lang="en">Alfimova N.I., Titenko A.A., Nikulin I.S., Galdun Yu.V., Pirieva S.Yu., Elistratkin M.Yu. Raw mix-ture for modified citrogypsum articles and method of their production. Patent RF, no. 2693808, 2018.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B47">
    <label>47.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Alfimova N.I., Titenko A.A., Nikulin I.S., Galdun Yu.V., Pirieva S.Yu., Chepurnyh, A.A. Raw mix for sawdust concrete and a method of manufacturing products from sawdust concrete. Patent RF, no. 2695313, 2018.</mixed-citation>
     <mixed-citation xml:lang="en">Alfimova N.I., Titenko A.A., Nikulin I.S., Galdun Yu.V., Pirieva S.Yu., Chepurnyh, A.A. Raw mix for sawdust concrete and a method of manufacturing products from sawdust concrete. Patent RF, no. 2695313, 2018.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B48">
    <label>48.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Hua S., Wang K., Yao X. Developing high performance phosphogypsum-based cementitious materi-als for oil-well cementing through a step-by-step optimization method. Cement and Concrete Composites. 2016. 72. P. 299 - 308. https://doi.org/10.1016/j.cemconcomp.2016.05.017</mixed-citation>
     <mixed-citation xml:lang="en">Hua S., Wang K., Yao X. Developing high performance phosphogypsum-based cementitious materi-als for oil-well cementing through a step-by-step optimization method. Cement and Concrete Composites. 2016. 72. P. 299 - 308. https://doi.org/10.1016/j.cemconcomp.2016.05.017</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B49">
    <label>49.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Edamenko A.S., Klimenko V.G. About possible use man-made raw materials in production of con-struction materials. Internet magazine &quot;Technosphere Safety Technologies&quot;. 2013. 1. http://agps-2006.narod.ru/ttb/2013-1/06-01-13.ttb.pdf (rus)</mixed-citation>
     <mixed-citation xml:lang="en">Edamenko A.S., Klimenko V.G. About possible use man-made raw materials in production of con-struction materials. Internet magazine &quot;Technosphere Safety Technologies&quot;. 2013. 1. http://agps-2006.narod.ru/ttb/2013-1/06-01-13.ttb.pdf (rus)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B50">
    <label>50.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Tian T., Yun Y., Hu Z.H., Chen Y., Shi J. Utilization of original phosphogypsum for the preparation of foam concrete. Constr. Build. Mater. 2016. 115. P. 143 - 152. https://doi.org/10.1016/j.conbuildmat.2016.04.028</mixed-citation>
     <mixed-citation xml:lang="en">Tian T., Yun Y., Hu Z.H., Chen Y., Shi J. Utilization of original phosphogypsum for the preparation of foam concrete. Constr. Build. Mater. 2016. 115. P. 143 - 152. https://doi.org/10.1016/j.conbuildmat.2016.04.028</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B51">
    <label>51.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Yang L., Yan Y., Hu Z. Utilization of phosphogypsum for the preparation of non-autoclaved aerated concrete. Construction and Building Materials. 2013. 4. P. 600 - 606. http://dx.doi.org/10.1016/j.conbuildmat.2013.03.070</mixed-citation>
     <mixed-citation xml:lang="en">Yang L., Yan Y., Hu Z. Utilization of phosphogypsum for the preparation of non-autoclaved aerated concrete. Construction and Building Materials. 2013. 4. P. 600 - 606. http://dx.doi.org/10.1016/j.conbuildmat.2013.03.070</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B52">
    <label>52.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">López F.A., Gázquez M., Alguacil F.J., Bolívar J.P., García-Díaz I., López-Coto I. Microencapsula-tion of phosphogypsum into a sulfur polymer matrix: physico-chemical and radiological characterization. Journal of Hazardous Materials. 2011. 192. P. 234 - 245. doi:10.1016/j.jhazmat.2011.05.010</mixed-citation>
     <mixed-citation xml:lang="en">López F.A., Gázquez M., Alguacil F.J., Bolívar J.P., García-Díaz I., López-Coto I. Microencapsula-tion of phosphogypsum into a sulfur polymer matrix: physico-chemical and radiological characterization. Journal of Hazardous Materials. 2011. 192. P. 234 - 245. doi:10.1016/j.jhazmat.2011.05.010</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B53">
    <label>53.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Vaicˇiukyniene D., Nizevicˇiene˙ D., Kiele˙ A., Janavicˇius E., Pupeikis D. Effect of phosphogypsum on the stability upon firing treatment of alkali-activated slag. Construction and Building Materials. 2018. 184. P. 485 - 491. https://doi.org/10.1016/j.conbuildmat.2018.06.213</mixed-citation>
     <mixed-citation xml:lang="en">Vaicˇiukyniene D., Nizevicˇiene˙ D., Kiele˙ A., Janavicˇius E., Pupeikis D. Effect of phosphogypsum on the stability upon firing treatment of alkali-activated slag. Construction and Building Materials. 2018. 184. P. 485 - 491. https://doi.org/10.1016/j.conbuildmat.2018.06.213</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B54">
    <label>54.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Rashad A.M. Potential use of phosphogypsum in alkali-activated fly ash under the effects of elevated temperatures and thermal shock cycles. Journal of Cleaner Production. 2015. 87. 717e725. http://dx.doi.org/10.1016/j.jclepro.2014.09.080</mixed-citation>
     <mixed-citation xml:lang="en">Rashad A.M. Potential use of phosphogypsum in alkali-activated fly ash under the effects of elevated temperatures and thermal shock cycles. Journal of Cleaner Production. 2015. 87. 717e725. http://dx.doi.org/10.1016/j.jclepro.2014.09.080</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B55">
    <label>55.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Liu S., Wang L., Yu B. Effect of modified phosphogypsum on the hydration properties of the phos-phogypsum-based supersulfated cement. Construction and Building Materials. 2019. 21430. P. 9 - 16 https://doi.org/10.1016/j.conbuildmat.2019.04.052</mixed-citation>
     <mixed-citation xml:lang="en">Liu S., Wang L., Yu B. Effect of modified phosphogypsum on the hydration properties of the phos-phogypsum-based supersulfated cement. Construction and Building Materials. 2019. 21430. P. 9 - 16 https://doi.org/10.1016/j.conbuildmat.2019.04.052</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B56">
    <label>56.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Liu S., Ouyang J., Ren J. Mechanism of calcination modification of phosphogypsum and its effect on the hydration properties of phosphogypsum-based supersulfated cement. Construction and Building Materi-als. 2020. 24320. 118226</mixed-citation>
     <mixed-citation xml:lang="en">Liu S., Ouyang J., Ren J. Mechanism of calcination modification of phosphogypsum and its effect on the hydration properties of phosphogypsum-based supersulfated cement. Construction and Building Materi-als. 2020. 24320. 118226</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B57">
    <label>57.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Emrullahoglu Abi C.B. Effect of borogypsum on brick properties. Construction and Building Materi-als. 2014. 59. P. 195 - 203. http://dx.doi.org/10.1016/j.conbuildmat.2014.02.012</mixed-citation>
     <mixed-citation xml:lang="en">Emrullahoglu Abi C.B. Effect of borogypsum on brick properties. Construction and Building Materi-als. 2014. 59. P. 195 - 203. http://dx.doi.org/10.1016/j.conbuildmat.2014.02.012</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B58">
    <label>58.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Türkel S., Aksin E. A comparative study on the use of fly ash and phosphogypsum in the brick pro-duction. Sadhana. 2012. 37. P. 595 - 607. https://doi.org/10.1007/s12046-012-0099-8</mixed-citation>
     <mixed-citation xml:lang="en">Türkel S., Aksin E. A comparative study on the use of fly ash and phosphogypsum in the brick pro-duction. Sadhana. 2012. 37. P. 595 - 607. https://doi.org/10.1007/s12046-012-0099-8</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B59">
    <label>59.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Contreras M., Teixeira S.R., Santos G.T.A., Gázquez M.J., Romero M., Bolívar J.P. Influence of the addition of phosphogypsum on some properties of ceramic tiles. Construction and Building Materials. 2018. 17530. P. 588 - 600. https://doi.org/10.1016/j.conbuildmat.2018.04.131</mixed-citation>
     <mixed-citation xml:lang="en">Contreras M., Teixeira S.R., Santos G.T.A., Gázquez M.J., Romero M., Bolívar J.P. Influence of the addition of phosphogypsum on some properties of ceramic tiles. Construction and Building Materials. 2018. 17530. P. 588 - 600. https://doi.org/10.1016/j.conbuildmat.2018.04.131</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B60">
    <label>60.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Vasilenko T.A., Ali Saleh-Jafer Physical and mechanical properties of expanded clay gravel obtained using calcium-containing technogenic materials. Modern problems of science and education. 2015.1-2. Available online: http://science-education.ru/ru/article/view?id=19899 (accessed on 04.05.2020). (rus.)</mixed-citation>
     <mixed-citation xml:lang="en">Vasilenko T.A., Ali Saleh-Jafer Physical and mechanical properties of expanded clay gravel obtained using calcium-containing technogenic materials. Modern problems of science and education. 2015.1-2. Available online: http://science-education.ru/ru/article/view?id=19899 (accessed on 04.05.2020). (rus.)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B61">
    <label>61.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Amrani M., Taha Y., Kchikach A., Benzaazoua M., Hakkou R. Phosphogypsum recycling: New hori-zons for a more sustainable road material application. Journal of Building Engineering. 2020. 101267 https://doi.org/10.1016/j.jobe.2020.101267</mixed-citation>
     <mixed-citation xml:lang="en">Amrani M., Taha Y., Kchikach A., Benzaazoua M., Hakkou R. Phosphogypsum recycling: New hori-zons for a more sustainable road material application. Journal of Building Engineering. 2020. 101267 https://doi.org/10.1016/j.jobe.2020.101267</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B62">
    <label>62.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Shen W., Zhou M., Ma W., Hub J., Cai, Z. Investigation on the application of steel slag-fly ash-phosphogypsum solidified material as road base material. Journal of Hazardous Materials. 2009. 164. P. 99 - 104. doi:10.1016/j.jhazmat.2008.07.125</mixed-citation>
     <mixed-citation xml:lang="en">Shen W., Zhou M., Ma W., Hub J., Cai, Z. Investigation on the application of steel slag-fly ash-phosphogypsum solidified material as road base material. Journal of Hazardous Materials. 2009. 164. P. 99 - 104. doi:10.1016/j.jhazmat.2008.07.125</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B63">
    <label>63.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Folek S., Walawska B., Wilczek B., Mioekiewicz J.  Use of phosphogypsum in road construction. Journal of Building Engineering. 2011. 13 (2). P. 18 - 22. doi:10.2478/v10026-011-0018-5</mixed-citation>
     <mixed-citation xml:lang="en">Folek S., Walawska B., Wilczek B., Mioekiewicz J.  Use of phosphogypsum in road construction. Journal of Building Engineering. 2011. 13 (2). P. 18 - 22. doi:10.2478/v10026-011-0018-5</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B64">
    <label>64.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Cuadri A.A., Navarro F.J., García-Morales M., Bolívar J.P. Valorization of phosphogypsum waste as asphaltic bitumen modifier. Journal of Hazardous Materials. 2014. 27930. P. 11 - 16 https://doi.org/10.1016/j.jhazmat.2014.06.058</mixed-citation>
     <mixed-citation xml:lang="en">Cuadri A.A., Navarro F.J., García-Morales M., Bolívar J.P. Valorization of phosphogypsum waste as asphaltic bitumen modifier. Journal of Hazardous Materials. 2014. 27930. P. 11 - 16 https://doi.org/10.1016/j.jhazmat.2014.06.058</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B65">
    <label>65.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Kochetkov A.V., Shchegoleva N.V., Korotkovskij S.A., Talalaj V.V., Vasil'ev Yu.E., Shashkov I.G. The device layers of transport structures from phosphogypsum hemihydrate (waste by-product of the pro-duction of nitrogen-phosphorus fertilizers). Internet magazine &quot;Transport facilities&quot;2019. 1. https://t-s.today/PDF/18SATS119.pdf, doi: 10.15862/18SATS119 (rus.)</mixed-citation>
     <mixed-citation xml:lang="en">Kochetkov A.V., Shchegoleva N.V., Korotkovskij S.A., Talalaj V.V., Vasil'ev Yu.E., Shashkov I.G. The device layers of transport structures from phosphogypsum hemihydrate (waste by-product of the pro-duction of nitrogen-phosphorus fertilizers). Internet magazine &quot;Transport facilities&quot;2019. 1. https://t-s.today/PDF/18SATS119.pdf, doi: 10.15862/18SATS119 (rus.)</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B66">
    <label>66.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Gerasimov D.V., Ignatiev A.A., Gotovtsev V.M., Golikov I.V. Prospects for the use of phosphogyp-sum in the production of asphalt concrete. Roads and Bridges.2018. 40. P. 304 - 315. (rus.)</mixed-citation>
     <mixed-citation xml:lang="en">Gerasimov D.V., Ignatiev A.A., Gotovtsev V.M., Golikov I.V. Prospects for the use of phosphogyp-sum in the production of asphalt concrete. Roads and Bridges.2018. 40. P. 304 - 315. (rus.)</mixed-citation>
    </citation-alternatives>
   </ref>
  </ref-list>
 </back>
</article>
