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RESEARCH OF BUILDING MATERIALS

MAGNESIUM BINDER WITH THE MICRO-SILICA ADDITIVE

Вестник МГСУ 7/2012
  • Ustinova Yuliya Valer'evna - Moscow State University of Civil Engineering (MSUCE) +7 (499) 183-32-92, Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .
  • Nasonova Alla Evgenievna - Moscow State University of Civil Engineering (MGSU) +7 (499) 183-32-92, Moscow State University of Civil Engineering (MGSU), 6 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .
  • Nikiforova Tamara Pavlovna - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Deputy Chair, Department of General Chemistry, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Kozlov Valeriy Vasil'evich - Moscow State University of Civil Engineering (MSUCE) Doctor of Technical Sciences, Professor, Department of Building Materials, +7 (499) 183-32-29, Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Страницы 147 - 151

The authors demonstrate that the use of the dry mix that constitutes caustic magnesite and a micro-silica additive makes it possible to obtain a binding material that contributes to formation of a durable and water-resistant artificial stone. The results of the research performed through the employment of methods of Fourier IR spectroscopy and electronic microscopy are provided. Interaction between magnesium oxide (MgO) as the basic oxide and micro-silica as the acidic oxide is proposed.
The compressive strength of the dry mix containing 16.7 % of micro-silica has been measured. In the event of hydraulic hardening, the compressive strength is equal to 11.5 MPa and 12.0 MPa in dry and water-saturated states, respectively. In the aftermath of air setting, the compressive strength is 10.0 MPa and 21.0 MPa in dry and water-saturated states, respectively.
Thereafter, the dry mix is gaged by the sulfuric acid solution (10 %) to identify the pH influence. In the event of hydraulic hardening, the compressive strength is 19.8 MPa and 14.1 MPa in dry and water-saturated states, respectively. In the aftermath of air setting, the compressive strength is 18.0 MPa and 19.9 MPa in dry and water-saturated states, respectively.

DOI: 10.22227/1997-0935.2012.7.147 - 151

Библиографический список
  1. Ustinova Yu.V., Nikiforova T.P., Kozlov V.V., Nasonova A.E. Issledovanie vzaimodeystviya kausticheskogo magnezita s dobavkoy khrizotil-asbesta [Research of Interaction between Caustic Magnesite and the Chrysotile-asbestos Additive] Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2011, no. 4, pp. 169—173.
  2. Ustinova Yu.V., Nasonova A.E., Kozlov V.V. Povyshenie vodostoykosti magnezial’nykh vyazhushchikh [Improvement of Water Resistance of Magnesium Binders]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2010, no. 4, vol. 3, pp. 123—127.
  3. Sidorov V.I., Tupikin E.I., Malyavskiy N.I., Ustinova Yu.V., Platonova E.E. Ekologicheskie aspekty primeneniya i ekspluatatsii konstruktsiy na osnove steklomagnievogo lista [Environmental Aspects of Application and Operation of Structures Based on the Glass-and-Magnesium Sheet]. Ekologiya urbanizirovannykh territoriy [Ecology of Urbanized Lands]. 2009, no. 4, pp. 65—68.
  4. Zimich V.V. Effektivnye magnezial’nye materialy stroitel’nogo naznacheniya s ponizhennoy gigroskopichnost’yu [Effective Low Water Absorption Magnesium Building Materials]. 2010.
  5. Nefed’ev A.P. Regulirovanie protsessov tverdeniya magnezial’nogo vyazhushchego [Regulation of Processes of Hardening of Magnesium Binding Materials]. Available at: http//www.cs-alternativa.ru/text/1954. Date of access: 19.02.2012.
  6. Pustovgar A.P. Effektivnost’ dobavok mikrokremnezema pri modifikatsii betona [Effectiveness of Microsilica Additives Used to Modify the Concrete] StroyPROFIl’ [Building Profile] Internet Journal. 2005, no. 8. Available at: http//stroyprofile.com/archive/1980. Date of access: 19.02.2012.
  7. Ustinova Yu.V., Nasonova A.E., Kozlov V.V. Issledovanie vzaimodeystviya kausticheskogo magnezita s dobavkoy mikrokremnezema [Research of Interaction between Caustic Magnesite and a Microsilica Additive]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 3, pp. 100—104.
  8. Shishelova T.I., Sozinova T.V., Konovalova A.N. Praktikum po spektroskopii. Voda v mineralakh [Workshop on Spectroscopy. Water in Minerals]. Moscow, Akademiya Estestvoznaniya [Academy of Natural Sciences] Publ., 2010.

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