AbstractAbout AuthorsReferences
In the course of the study of the rheological state of gypsum suspensions when evaluating the change in the dynamic viscosity in time, it is revealed that water soluble polymers and copolymers of the acrylic acid in quantity from 0.005% show active properties in relation to building gypsum at the stage of its mixing with water and effect on the processes of setting and hardening. On the basis of results of the X-ray analysis and determination of physical-mechanical properties of hardened samples, it is shown that the use of water soluble acrylic polymers insignificantly influences on the character of the formed crystalline phase and the strength of gypsum casts.
S.V. ANISIMOVA, Candidate of Sciences (Chemistry),
A.E. KORSHUNOV, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.),
D.N. EMELIANOV, Doctor of Sciences (Chemistry)
A.E. KORSHUNOV, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.),
D.N. EMELIANOV, Doctor of Sciences (Chemistry)
Lobachevsky State University of Nizhni Novgorod (23 Gagarin Avenue, 603950, Nizhny Novgorod, Russian Federation)
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15. Khaliullin, M.I., Altykis M.G., Rakhimov R.Z. etc. Influence of the plasticizing additives on properties of dry mixes on the basis of angidritovy knitting. Izvestiya KGASA. 2003. No. 1, pp. 54–57. (In Russian).
2. De Korte A.C.J., Brouwers H.J.H. Ultrasonic sound speed analysis of hydrating calcium sulphate emihydrates. Journal of Materials Science. 2011. Vol. 46. No. 22, pp. 7228–7239.
3. Ustinova Yu.V., Sivkov S.P., Barinova O.P., Sanzharovskiy A.Yu. Influence of various additives on morphology of crystals of two-water plaster. Vestnik MGSU. 2012. No. 4, pp. 140–144. (In Russian).
4. Panferova A.Yu., Garkavi M.S. Modification of Gypsum Systems with Small Additions of Polymers. Stroitel’nye Materialy [Construction Materials]. 2011. No. 6, pp. 8–9. (In Russian).
5. Ustinova Yu.V. Influence of polymeric additives on crystallization of two-water sulfate of calcium. Stroitel’stvo: nauka i obrazovanie. 2013. No. 2, pp. 3. (In Russian).
6. Yukhnevskii P.I. About the mechanism of plasticization of cement compositions additives. Stroitel’naya nauka i tekhnika. 2010. No. 1–2, pp. 64–69. (In Russian).
7. Sagdatullin D.G., Morozova N.N., Khozin V.G. Rheological characteristics of water suspensions composite plaster knitting and his composites. Izvestiya KazGASU. 2009. № 2, pp. 263–268. (In Russian).
8. Kamalova Z.A., Rakhimov R.Z., Ermilova E.Yu., Stoyanov O.V. Supersofteners in manufacturing techniques of composite concrete. Vestnik Kazanskogo tekhnologicheskogo universiteta. 2013. Vol. 16. No. 8, pp. 148–152. (InRussian).
9. Shvetsov O.K., Durosova E.Yu., Komin A.V. Colloidal and chemical properties of solutions polymeric karboksilatnykh of surface-active substances. Theses of reports of the III scientific and technical conference “Polymeric Composite Materials and Coverings”. Yaroslavl’. 2008, pp. 323–326. (InRussian).
10. Kholmberg K., Iensson B., Kronberg B., Lindman B. Poverkhnostno-aktivnye veshchestva i polimery v vodnykh rastvorakh [Surface-active substances and polymers in water solutions]. Moscow: BINOM. Laboratoriya znany. 2007. 528 p.
11. Sivtsov Е. Surface properties of acrylic and N-vinylsuccinimidic acids copolymers in aqueous solutions. Proceedings of Baltic Polymer Symposium 2007. Vilnius: Vilnius University. 2007, pp. 67–71.
12. Sivtsov E.V., Chernikova E.V., Terpugova P.S., Yasnogorodskaya O.G. Influence of a microstructure of copolymers of acrylic acid and the N-butilakrilata received by method of pseudo-live radical polymerization on the mechanism of reversible transfer of a chain on their superficial activity in water solutions. Zhurnal prikladnoy khimii. 2009. Vol. 82. No. 4, pp. 630–638. (In Russian).
13. Khozin V.G., Abdrakhmanova L.A., Nizamov R.K. Common Concentration Pattern of Effects of Construction Materials Nanomodification. Stroitel’nye Materialy [Construction Materials]. 2015. No. 2, pp. 25–33. (In Russian).
14. Ustinova Yu.V. Influence of polymeric additives on crystallization of two-water sulfate of calcium. Stroitel’stvo: nauka i obrazovanie. 2013. No. 2, pp. 3. http://www.nsojournal.ru/public/journals/1/issues/2013/02/3.pdf. (date of access 11.07.16). (In Russian).
15. Khaliullin, M.I., Altykis M.G., Rakhimov R.Z. etc. Influence of the plasticizing additives on properties of dry mixes on the basis of angidritovy knitting. Izvestiya KGASA. 2003. No. 1, pp. 54–57. (In Russian).
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