English
Русский 5-13 p.
There are a lot of different types of binders for construction purpose, a strong interest is focused on free-of-cement binders of new generation, which are characterized by unique and/or improved performance proper-ties. Among them there is composite nanostructured gypsum binder (CNGB) as a quite new binding system. In the framework of this study the hypothesis of synergetic effect in hardened binding system was proposed and approved. The hypothesis is realized when interaction of two binding systems with different structure formation mechanism such as followings: polymerization-polycondensation and hydration. A number of experiments were carried out and the results were obtained, which demonstrate a resistance of CNGB under high-temperature effect (up to 1000ºC) vs. ordinary gypsum binder. It was determined that a heat-resistance of CNGB is associated with joint crystallization of sulphate-based component (gypsum binder) and highly-reactive silica-based component (in nanostructured binder). Normally, nanostructuted binder is stable under high-temperature exposure. The indicator of synergetic effect is formation of new crystalline phase – hydroxyellestadite Ca5(SiO4)3(SO4)3(OH)2. This phase has unit cell size which is stable under temperature gradient. This characteristic allows saving structure framework in CNGB under high temperature.
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3. Petropavlovskaya V.B., Bur'yanov A.F. Novichenkova T.B. Maloenergoemkie gipsovye materialy i izdeliya na osnove othodov promyshlennosti. Stroitel'nye materialy. 2006. 7. P. 8 – 9. (rus.)
4. Petropavlovskaya V.B., Belov V.V., Novichenkova T.B., Bur'yanov A.F. i dr. Optimizaciya vnutrennej struktury dispersnyh sistem negidratacionnogo tverdeniya. Stroitel'nye materialy. 2010. 7. P. 22 – 23. (rus.)
5. Bur'yanov A.F., Petropavlovskaya V.B., Novichenkova T.B., Poleonova YU.YU. Modificirovannye gipsovye bezobzhigovye kompozity. Stroitel'nye materialy. 2013. 5. P. 76 – 78. (rus.)
6. Vojtovich E.V., CHulkova I.L., Fomina E.V., CHerevatova A.V. Povyshenie effektivnosti cementnyh vyazhushchih s aktivnym mineral'nym nanodispersnym komponentom. Vestnik Sibirskoj gosudarstvennoj avtomobil'no-dorozhnoj akademii. 2015. 5. P. 56 – 62. (rus.)
7. Urhanova L.A., Dashicyrenov D.D., Zayahanov M.E. Effektivnyj penobeton na osnove effuzivnyh porod. Stroitel'nye materialy. 2007. 4. P. 50 – 51. (rus.)
8. Fomina E.V., Strokova V.V., Kudeyarova N.P. Osobennosti primeneniya predvaritel'no gashenoj izvesti v yacheistyh betonah avtoklavnogo tverdeniya. Izvestiya vysshih uchebnyh zavedenij. Stroitel'stvo. 2013. 5. P. 29 – 34. (rus.)
9. Ageeva M.S., Karacupa S.V., Pomoshnikov D.D. Regulirovanie svojstv shlako-cementnogo vyazhushchego. Sbornik nauchnyh trudov po materialam Mezhdunarodnoj nauchno-prakticheskoj konferencii: v 26 chastyah «Sovremennye tendencii v obrazovanii i nauke». Tambov: OOO «Konsaltingovaya kompaniya YUkom». 2013. P. 8 – 9. (rus.)
10. CHizhov R.V., Kozhuhova N.I., Strokova V.V., ZHernovskij I.V. Alyumosilikatnye besklinkernye vyazhushchie i oblasti ih ispol'zovaniya. Vestnik Belgorodskogo gosudarstvennogo tekhnologicheskogo universiteta im. V.G. SHuhova. 2016. 4. P. 6 – 10. (rus.)
11. Kalashnikov V.I., Hvastunov N.I., Maktridin A.A., Kartashov V.L. Novye geopolimernye materialy iz gornyh porod, aktivirovannye malymi dobavkami shlakov i shchelochej. Stroitel'nye materialy. 2006. 6. P. 93 – 95. (rus.)
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14. Zuev A.S., Doroganov V.A., Evtushenko E.I. The use of artificial ceramic binders based on thermally activated high-alumina raw materials in a semi-dry pressing technology. Refractories and Industrial Ceram-ics. 2012. 53 (2). P. 97 – 100.
15. Doroganov V.A., Doroganov E.A., Peretokina N.A., Onishchuk V.I. at al. Corundum and Zirconia Composites Based on Artificial Ceramic Binders. Refractories and Industrial Ceramics. 2016. 57 (1). P. 92 – 97.
16. Zaitsev S.V., Doroganov V.A., Doroganov E.A., Evtushenko E.I. Study of Artificial Ceramic Binder Properties in the System Al2O3–SiO2–SiC. Refractories and Industrial Ceramics. 2017. 57 (5). P. 526 – 530.
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Cherevatova A.V., Zhernovskaya I.V., Alehin D.A., Kozhukhova M.I., Kozhukhova N.I., Yakovlev E.A. Theoretical aspects of development of composite nanostructured gypsum binder characterized by increased heat resistance. Construction Materials and Products. 2019. 2 (4). P. 5 – 13. https://doi.org/10.34031/2618-7183-2019-2-4-5-13