Fine Disperse-Reinforced Concretes on the Basis of Complex Modifying Additives

Number of journal: №9-2016
Autors:

T.A. NIZINA
A.N. PONOMAREV
A.S. BALYKOV

DOI: https://doi.org/10.31659/0585-430X-2016-741-9-68-72
УДК: 691.32

 

AbstractAbout AuthorsReferences
Results of the study of physical-mechanical characteristics of disperse-reinforced fine concretes with poly-functional modifying additives are presented. Methods for complex disperse reinforcement of fine concretes with non-metallic fiber of different types are proposed; they make it possible to directionally form the structure of such composites at various scale levels. The influence of fibers of three types has been studied. They are polypropylene multifilament and polyacrylonitrile synthetic specially processed fibers with the cutting length of 12 mm, as well as basalt microfiber modified with astralenes with the length of 100–500 microns. As modifying additives, micro-silica condensed and compacted, high active metakaolin, and a hydro-isolating additive in the concrete mix are used. An analysis of the study of the saturated D-optimal plan is made with the help of three-angle diagrams of GibbsRosebom built according to polynomial models of “mix I, mix II, technology-properties” types which make it possible to trace the influence of 6 variable factors in the two-dimensional space The feasibility of the complex use of modifying additives and disperse fibers, including nano-modified, for improving the properties of fine concretes is substantiated. Compositions with the best complex of elastic-strength characteristics are identified.
T.A. NIZINA1 , Doctor of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
A.N. PONOMAREV2 , Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
A.S. BALYKOV1 , Engineer

1 National Research Mordovia State University (68, Bolshevistskaya Street, Saransk, 430005, Republic of Mordovia, Russian Federation)
2 National Research Peter the Great Saint-Petersburg Polytechnic University (29, Polytechnicheskaya Street, Saint Petersburg, 195251, Russian Federation)

1. Artamonova O.V. Building nanomaterials: trends and prospects. Nauchnyi vestnik Voronezhskogo gosudarstvennogo arkhitekturno-stroitel’nogo universiteta. Seriya: Fizikokhimicheskie problemy i vysokie tekhnologii stroitel’nogo mate-rialovedeniya. 2013. Vol. 6, pp. 13–23. (In Russian).
2. Figovsky O.L., Beilin D.A., Ponomarev A.N. Successful implementation of nanotechnologies in building materials. Nanotekhnologii v stroitel’stve. 2012. No. 3, pp. 6–21. (In Russian).
3. Pukharenko Yu.V., Aubakirova I.U., Nikitin V.A., Staroverov V.D. Structure and properties of nano-modified cement systems. International Con-gress «Science and Innovation in Construction «SIB-2008». Modern problems of building materials and technologies. Voronezh. 2008. Vol. 1. Book. 2, pp. 424–429. (In Russian).
4. Shames A.I., Katz E.A., Panich A.M., Mogilyansky D., Mogilko E., Grinblat J., Belousov V.P, Belousova I.M., Ponomarev A.N. Structural and magnetic resonance study of astralen nanoparticles. Diamond & Related Materials. 2008. Vol. 18. Iss. 2-3, pp. 505–510. /
5. Ponomarev A.N. Nanoconcrete: Conception and problems. Synergism of nanostructuring cement binders and reinforcing fibers. Stroitel’nye Materialy [Construction Materials]. 2007. No. 6, pp. 69–71. (In Russian).
6. Ponomarev A.N., Yudovich M.E., Gruzdev M.V., Yudovich V.M. Non-metal nanoparticle in the outer electromagnetic field. Topological factors of mesostructures interaction. Voprosy materialovedeniya. 2009. No. 4 (60), pp. 59–64. (In Russian).
7. Ponomarev A.N., Yudovich M.E., Yudovich V.M. Possibilities of nano-technology in the modern world. Nanotekhnologii. Ekologiya. Proizvodstvo. 2010. No. 5, pp. 112–113. (In Russian).
8. Patent RF 2196731. Poliedral’nye mnogosloinye uglerodnye nanos-truktury fulleroidnogo tipa [Polyhedral multilayer carbon nanostructures of ful-leroid type]. Ponomarev A.N., Nikitin V.A. Declared 21.09.2000. Published 20.01.2003. Bulletin No. 2. (In Russian).
9. Patent RF 2397950. Mnogosloinye uglerodnye nanochastitsy ful-leroidnogo tipa toroidal’noi formy [Multilayered carbon nanoparticles of fulleroid type of toroidal shape]. Ponomarev A.N., Yudovich M.E. Declared 23.04.2008. Published 27.08.2010. Bulletin No. 24. (In Russian).
10. Rabinovich F.N. Dispersno armirovannye betony [Disperse reinforced concretes]. Мoscow: Stroyizdat. 1989. 176 p.
11. Rabinovich F.N. Kompozity na osnove dispersno armirovannykh betonov. Voprosy teorii i proektirovaniya, tekhnologiya, konstruktsii: Monografiya [Composites based on disperse reinforced concretes. Questions of theory and design, technology, constructions: Monograph]. Мoscow: ASV. 2004. 560 p.
12. Zagorodnyuk L.Kh., Shakarna M., Shchekina A.Yu. Classification of additives for the reinforcement of particulate composites. GISAP (Global Interna-tional Scientific Analytical Project). Access mode: http://gisap. eu/ru/node/23874 (In Russian).
13. Nizina Т.А., Balykov А.S. Analysis of the combined effect of the modifier additives and particulate reinforcement on the physico-mechanical characteris-tics of fine-grained concretes. Regional’naya arkhitektura i stroitel’stvo. 2015. No. 4, pp. 25–33. (In Russian).
14. Patrikeyev L.N. Nanobetony. Nanoindustriya. 2008. No. 2, pp. 14–15. (In Russian).
15. Nizina T.A., Balbalin A.V. Influence of mineral additives on the rheological and strength characteristics of cement composites. Vestnik Tomskogo gosu-darstvennogo arkhitekturno-stroitel’nogo universiteta. 2012. No. 2, pp. 148–153. (In Russian).
16. Nizina T.A., Balbalin A.V. Mechanical activation of cement mixtures with polyfunctional additives. Regional’naya arkhitektura i stroitel’stvo. 2013. No. 2, pp. 36–42. (In Russian).
17. Selyaev V.P., Nizina T.A., Balbalin A.V. Multifunctional modifiers of cement composites based on mineral admixtures and polycarboxylate plasticizers. Vestnik Volgogradskogo gosudarstvennogo arkhitekturno-stroitel’nogo univer-siteta. Seriya: Stroitel’stvo i arkhitektura. 2013. Vol. 2. No. 31 (50), pp. 156–163. (In Russian).
18. Nizina T.A., Balykov A.S., Saraikin A.S. Experimental studies disperse-reinforced fine-grained concretes with the polyfunctional modifiers. UralNIIproekt RAASN. 2015. No. 4, pp. 91–96. (In Russian).

For citation: 


Print   Email