Concepts and Technology Base Nanomodification of Structures of Building Composites. Part 3: Effective Nanomodification of Systems and Structures of Cement Hardening Cement Stone (Criteria and Conditions)

The problem of the effectiveness of the nanomodification of systems and structures of cement hardening cement paste. Implemented kinetic approach in studying the process of hydration of cement in a modification of the nanostructure of cement stone. Evaluation of nanomodification of carried out by analyzing the performance criterion is integrated into the «anchor» to the conditions of the nanomodification of measure is achieved by varying the flow of kinetic parameters of hydration and hardening of cement and related criteria Е, τ, R. The introduction of nano modifiers optimal dosages accelerates the hydration of cement, with the modification taking place by cement stone structure and morphology of dispersion of tumors is accompanied by elevated-strength values at 28 days age 45–65% depending on the kind of additive.

E.M. CHERNYSHOV, Doctor of Sciences (Engineering), Academician of RAAСS (This email address is being protected from spambots. You need JavaScript enabled to view it.)
O.V. ARTAMONOVA, Candidate of Sciences (Chemistry) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
G.S. SLAVCHEVA, Doctor of Sciences (Engineering)

Voronezh State University of Architecture and Civil Engineering (84, 20-letiya Oktyabrya Street, 394006, Voronezh, Russian Federation)

1. Artamonova O.V., Chernyshov E.M. Conceptions and bases of nano-modification technologies of building composites structures. Part 1. General problems of fundamentality, main direction of investigations and developments. Stroitel’nye Materialy [Construction Materials]. 2013. No. 7, pp. 82–95. (In Russian).
2. Chernyshov E.M., Artamonova O.V., Slavcheva G.S. Concepts and bases of technologies of nanomodification of building composite structures. Part 2. to the problem of conceptual models of nanomodification of the structure. Stroitel’nye Materialy [Construction Materials]. 2014. No. 4, pp. 73–84. (In Russian).
3. Artamonova O.V., Korotkikh D.N., Chernyshev E.M. Formation of the structure and management of the strength properties of modified systems in hydrosilicate ultra- and nano-sized particles. Deformation and fracture of materials: Proceedings of the First International Conference. Moscow. 2006, pp. 514–516. (In Russian).
4. Artamonova O.V., Kukina O.B., Solokhin M.A. Investigation of the structure and properties of cement paste, modified complex nano-additive. Deformacija i razrushenie materialov. 2014. No. 11, pp. 18–22. (In Russian).
5. Pomazkov V.V. Questions hydration kinetics of mineral binders. Research on cement and silicate concrete. Tr. probl. Lab., vol. 7. Voronezh. 1964, pp. 5–21. (In Russian).
6. Melihov I.V. Fiziko-himicheskaja jevoljucija tverdogo veshhestva [Physico-chemical evolution of the solid]. Moscow: BINOM. Laboratorija znanij. 2009. 309 p.
7. Eiring G., Lin S.G., Lin S.M. Osnovy khimicheskoi kinetiki [Fundamentals of chemical kinetics]. Moscow: Mir. 1983. 527 p.
8. Tretyakov Y.D., Putlyaev V.I. Vvedenie v khimiyu tverdofaznykh materialov [Introduction to the chemistry of solid-phase materials]. Moscow: MGU. 2006. 400 p.
9. Lothenbach В., Winnefeld F., Figi R. The influence of superplasticizers on the hydration of Portland cement. Proceedings of the 12th International Congress on the Chemistry of Cement. Montreal. 2007. pp. 211–233.
10. Artamonova O.V., Kukina O.B. A study of the kinetics of curing modified cement stone. Nauchnyj vestnik Voronezhskogo gosudarstvennogo arhitekturno-stroitel’nogo universiteta. Serija: Fiziko-himicheskie problemy i vysokie tehnologii stroitel’nogo materialovedenija. 2014. No. 2 (9), pp. 83–93. (In Russian).
11. Artamonova O.V., Sergutkina O.R., Ostankova I.V., Shvedova M.A. Synthesis of nanoparticulate modifier based on SiO₂ cement composites. Kondensirovannye sredy i mezhfaznye granicy. 2014. Vol. 16. No. 1, pp.  152–162. (In Russian).
12. Artamonova O.V. Investigation of the processes of structure formation in cement systems modified nanotubes of chrysotile. Vestnik Central’nogo territorial’nogo otdelenija Rossijskoj akademii arhitektury i stroitel’nyh nauk. 2015. Vol. 14, pp. 154–162. (In Russian).
13. Artamonova O.V., Sergutkina O.R., Shvedova M.A. Synthesis of complex additives based on SiO₂ nanoparticles to modify of cement stone. International Conference «Functional Materials». IСFM’2013. Ukraine. 2013, p. 428.
14. Teoriya cementa [Theory of cement] Ed. by A.A. Pashhenko. Kiev: Budivel’nik, 1991. 168 p.
15. Vest A. Khimiya tverdogo tela. Teoriya i prilozheniya v 2-kh ch. Ch. 1, 2 [Solid State Chemistry. Theory and Applications in 2 parts. Part 1, 2]. Moscow: Mir. 1988. 336 p.
16. Chernyshev E.M., Slavcheva G.S., Artamonova O.V. By conceptual models management breaking strength of the nanomodified structures conglomerate building composites. Izvestija KGASU. 2014. No. 3 (29), pp. 156–161. (In Russian).
17. Armstrong R.V. Mechanical properties of metals with ultrafine grain. Ultrafine grains in metals. Collection of articles, translated from English by V.V. Romaneeva, A.A. Grigor’yana. Metallurgiya. Moscow. 1973, pp. 11–40. (In Russian).
18. Shchurov A.F. Disperse structure and strength of hydrated silicates of calcium. Silicate and its application. Abstracts of the All-Union seminar. Kaunas. 1980, pp. 159–161. (In Russian).