3451
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ISSN 2587-9006
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№ 1 (20), 2019
ISSN 2587-9006
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394006 |
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. 20- |
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. 6419 |
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.: (473) 2369350, (473) 2717617 |
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E-mail: chemistry@vgasu.vrn.ru, lgkkn@rambler.ru |
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», 2019 |
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2
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№ 1 (20), 2019 |
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691.332
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*1, . . |
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1,4 |
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, 170026, . |
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, 129337, . |
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E-mail: Victoria petrop@mail.ru |
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© |
. ., |
. ., |
. ., |
. ., 2019 |
3
HIGH STRENGTH GYPSUM MATERIALS
V.B. Petropavlovskaya*1, A.F. Buryanov2, K.S. Petropavlovskii 3,
T.B. Novichenkova4
1,4Tver State Technical University, Russian Federation,
170026, Tver, Af. Nikitin 22
2, 3 Moscow State University of Civil Engineering (MGSU), Russian Federation, 129337, Moscow, Yaroslavskoe shosse, 26
*Corresponding author: Victoria B. Petropavlovskaya, E-mail: victoria petrop@mail.ru
The properties of gypsum composites obtained on the basis of the natural gypsum stone of the Novomoskovsk field located in the Tula region are investigated. When molding them, mixtures of gypsum powders with a particle size distribution optimized from the conditions for obtaining maximum strength were used. The structure of the composite is formed under the conditions of the convergence of gypsum grains over distances of short-range forces due to the application of external pressure. Its use allows to provide high performance characteristics of the material: strength, density, water resistance.
Keywords: gypsum, phase contacts, interaction forces, structure of a gypsum stone, molding, hardening, properties
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№ 1 (20), 2019 |
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., %): CКO – 30,84…32,69; SO3 |
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38…44,79; SiO2 – 0,84…5,78; Al2O3 – 0,21…1,48; Fe2O3 – 0,16…0,45; MgO – |
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6
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№ 1 (20), 2019 |
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№ 1 (20), 2019 |
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9