DOI: https://doi.org/10.15587/1729-4061.2019.171012

Influence of modification of the solid component on the properties of non-autoclaved aerated concrete

Eugene Krylov, Volodymyr Martynov, Maksym Mykolaiets, Olena Martynova, Oleksandr Vietokh

Abstract


This paper reports results of research into the modification of a solid component in the non-autoclaved aerated concrete with a lime-carbonate additive that contains calcium carbonate (calcite), calcium hydroxide (portlandite) and the additive with a plasticizing and accelerating effect in order to improve its strength. Based on an analysis of the scientific literature, it has been suggested that the properties of cellular concretes are defined by the character of a solid component. The object of research that we selected was the non-autoclaved aerated concrete with a density of 500 kg/m3. The list of raw materials and their characteristics is provided. The aerated concrete was molded at a fixed water demand corresponding to the spread of a mixture of 220 mm by a Suttard viscometer. In the course of experimental study we applied both standard and original test methods (mathematical-statistical methods, x-ray phase analysis, determining the equipotential field of the surface of samples of aerated concrete).

We have obtained the non-autoclaved aerated concrete with a modified solid component, which has a maximum compressive strength of 3.53 MPa corresponding to concrete of class C2 in line with current standard. The high strength is explained, based on data from an X-ray phase analysis, by the presence of crystalline phases, which are represented by stable new structures in the form of calcium carbonate and its modifications: vaterite ‒ μ-form of СaСO3, aragonite ‒ metastable form of СaСO3 and tobermorite gel.

 Based on the data obtained, we have constructed experimental-statistical models of the examined properties. A specific relationship has been established between the strength of non-autoclaved aerated concrete and the equipotential field strength. The research results have been implemented industrially for manufacturing articles from non-autoclaved aerated concrete, which are not inferior, in terms of strength, to its autoclaved analogs.


Keywords


cellular concrete; aerated concrete; solid component; calcite; polymorphic modifications; portlandite.

References


Gorlov, Yu. P., Merkin, A. P., Ustenko, A. A. (1980). Tekhnologiya teploizolyatsionnyh materialov. Moscow: Stroyizdat, 396.

Shlegel', I., Bulgakov, A., Afanas'ev, Yu. (2003). K voprosu otsenki kachestva yacheistyh betonov. Stroitel'nye materialy, 6, 13–15.

Pinsker, V., Vylegzhanin, V. (2004). Yacheistiy beton kak ispytanniy vremenem material dlya kapital'nogo stroitel'stva. Stroitel'nye materialy, 3, 44–45.

Baranov, A. T., Bahtiyarov, K. I. (1963). Vliyanie osnovnyh tekhnologicheskih faktorov na svoystva yacheistogo betona. Tekhnologiya zavodskogo izgotovleniya betonov (tyazhelyh, legkih i yacheistyh). Moscow: Gosstroyizdat, 18–22.

Ramamurthy, K., Kunhanandan Nambiar, E. K., Indu Siva Ranjani, G. (2009). A classification of studies on properties of foam concrete. Cement and Concrete Composites, 31 (6), 388–396. doi: https://doi.org/10.1016/j.cemconcomp.2009.04.006

Just, A., Middendorf, B. (2009). Microstructure of high-strength foam concrete. Materials Characterization, 60 (7), 741–748. doi: https://doi.org/10.1016/j.matchar.2008.12.011

Yu, X. G., Luo, S. S., Gao, Y. N., Wang, H. F., Li, Y. X., Wei, Y. R., Wang, X. J. (2010). Pore Structure and Microstructure of Foam Concrete. Advanced Materials Research, 177, 530–532. doi: https://doi.org/10.4028/www.scientific.net/amr.177.530

Narayanan, N., Ramamurthy, K. (2000). Structure and properties of aerated concrete: a review. Cement and Concrete Composites, 22 (5), 321–329. doi: https://doi.org/10.1016/s0958-9465(00)00016-0

Fernández-Jiménez, A., Palomo, A., Criado, M. (2005). Microstructure development of alkali-activated fly ash cement: a descriptive model. Cement and Concrete Research, 35 (6), 1204–1209. doi: https://doi.org/10.1016/j.cemconres.2004.08.021

Fernandez-Jimenez, A., García-Lodeiro, I., Palomo, A. (2007). Durability of alkali-activated fly ash cementitious materials. Journal of Materials Science, 42 (9), 3055–3065. doi: https://doi.org/10.1007/s10853-006-0584-8

Owens, P. L., Buttler, F. G. (1980). The Reactions of Fly Ash and Portland Cement with Relation to the Strength of Concrete as a Function of Time and Temperature. Proc. 7th International Congress on the Chemistry of Cements. Paris, 60–65.

Kolbasov, V. M., Timashev, V. V. (1981). Svoystva tsementov s karbonatnymi dobavkami. Tsement, 10, 10–12.

Oshio, A., Sone, T., Matsui, A. (1987). Properties of Concrete Containing Mintral Powders. Cement Association of Japan Rewiev, 114–117.

Pozniak, O., Melnyk, А. (2014). Non-autoclave aerated concrete from modified binders composition containing supplementary cementitious materials. Budownictwo I architektura. Politechnika Lubelska, 13 (2), 127–134.

Herega, A. N. (2013). Physical aspects of self-organization processes in composites. 2. The structure and interaction of inner boundaries. Nanomechanics Science and Technology: An International Journal, 4 (2), 133–143. doi: https://doi.org/10.1615/nanomechanicsscitechnolintj.v4.i2.30

Regourd, M., Mortureux, B., Gautier, E. (1981). Hidraulic Reactivity of Various Pozzolans. Proc. Fifth International Symposium on Concrete Technology. Mexico, 1–14.

Kjellsen, K. O., Lagerblad, B. (1995). Influence of natural minerals in the filler fraction on hydratation and properties of mortars. Stockholm.

Voznesenskiy, V. A., Lyaschenko, T. V., Ogarkov, B. A. (1989). Chislennye metody resheniya stroitel'no-tekhnologicheskih zadach na EVM. Kyiv: Vischa shkola, 328.

Poznyak, O., Sanytsky, M., Zavadsky, I., Braichenko, S., Melnyk, A. (2018). Research into structure formation and properties of the fiber­reinforced aerated concrete obtained by the non­autoclaved hardening. Eastern-European Journal of Enterprise Technologies, 3 (6 (93)), 39–46. doi: https://doi.org/10.15587/1729-4061.2018.133594

Poznyak, O., Melnyk, А., Soltysik, R. (2015). The Properties and Peculiarities of structure formation of аerаted concrete. Internationale Baustofftagung. F.A. Finger-Institut fur Baustoffkunde. Bauhaus-Universitat Weimar. Bundesrepublik Deutschland. Tagungsbericht. Band 2, 959–966.

Martynov, V., Martynov, E., Krylov, I., Herega, A. (2015). Influence of the Structure of a Material Solid Phase on the Properties of Cellular Concrete. International Journal of Composite Materials, 5 (4), 79–80.

Vyrovoy, V. N., Martynov, V. I., Vetoh, A. M., Martynova, E. A., Elkin, V. V. (2014). Modelirovanie pri otsenke haraktera struktury penobetona. Stroitel'nye materialy, oborudovanie, tekhnologii XXI veka, 11 (190), 11–13.

Krylov, E. A., Martynov, V. I. (2014). Analysis of Solid Phase Impact on Cellular Concrete Properties. Journal of technical university of moldova and moldavian engineering association, 2 (57), 35–37.

Gorshkov, V. S., Timashev, V. V., Savel'ev, V. G. (1981). Metody fiziko-himicheskogo analiza vyazhuschih veschestv. Moscow: Vysshaya shkola, 335.

Index (inorganic) to the pouda diffraction file – ASTM. 1969 (1969). Publication PD1S – 1911. American society for testing and materials. York. Pensylvania, 216.


GOST Style Citations


Gorlov Yu. P., Merkin A. P., Ustenko A. A. Tekhnologiya teploizolyatsionnyh materialov. Moscow: Stroyizdat, 1980. 396 p.

Shlegel' I., Bulgakov A., Afanas'ev Yu. K voprosu otsenki kachestva yacheistyh betonov // Stroitel'nye materialy. 2003. Issue 6. P. 13–15.

Pinsker V., Vylegzhanin V. Yacheistiy beton kak ispytanniy vremenem material dlya kapital'nogo stroitel'stva // Stroitel'nye materialy. 2004. Issue 3. P. 44–45.

Baranov A. T., Bahtiyarov K. I. Vliyanie osnovnyh tekhnologicheskih faktorov na svoystva yacheistogo betona // Tekhnologiya zavodskogo izgotovleniya betonov (tyazhelyh, legkih i yacheistyh). Moscow: Gosstroyizdat, 1963. P. 18–22.

Ramamurthy K., Kunhanandan Nambiar E. K., Indu Siva Ranjani G. A classification of studies on properties of foam concrete // Cement and Concrete Composites. 2009. Vol. 31, Issue 6. P. 388–396. doi: https://doi.org/10.1016/j.cemconcomp.2009.04.006 

Just A., Middendorf B. Microstructure of high-strength foam concrete // Materials Characterization. 2009. Vol. 60, Issue 7. P. 741–748. doi: https://doi.org/10.1016/j.matchar.2008.12.011 

Pore Structure and Microstructure of Foam Concrete / Yu X. G., Luo S. S., Gao Y. N., Wang H. F., Li Y. X., Wei Y. R., Wang X. J. // Advanced Materials Research. 2010. Vol. 177. P. 530–532. doi: https://doi.org/10.4028/www.scientific.net/amr.177.530 

Narayanan N., Ramamurthy K. Structure and properties of aerated concrete: a review // Cement and Concrete Composites. 2000. Vol. 22, Issue 5. P. 321–329. doi: https://doi.org/10.1016/s0958-9465(00)00016-0 

Fernández-Jiménez A., Palomo A., Criado M. Microstructure development of alkali-activated fly ash cement: a descriptive model // Cement and Concrete Research. 2005. Vol. 35, Issue 6. P. 1204–1209. doi: https://doi.org/10.1016/j.cemconres.2004.08.021 

Fernandez-Jimenez A., García-Lodeiro I., Palomo A. Durability of alkali-activated fly ash cementitious materials // Journal of Materials Science. 2007. Vol. 42, Issue 9. P. 3055–3065. doi: https://doi.org/10.1007/s10853-006-0584-8 

Owens P. L., Buttler F. G. The Reactions of Fly Ash and Portland Cement with Relation to the Strength of Concrete as a Function of Time and Temperature // Proc. 7th International Congress on the Chemistry of Cements. Paris, 1980. P. 60–65.

Kolbasov V. M., Timashev V. V. Svoystva tsementov s karbonatnymi dobavkami // Tsement. 1981. Issue 10. P. 10–12.

Oshio A., Sone T., Matsui A. Properties of Concrete Containing Mintral Powders // Cement Association of Japan Rewiev. 1987. Р. 114–117.

Pozniak O., Melnyk А. Non-autoclave aerated concrete from modified binders composition containing supplementary cementitious materials // Budownictwo I architektura. Politechnika Lubelska. 2014. Vol. 13, Issue 2. P. 127–134.

Herega A. N. Physical aspects of self-organization processes in composites. 2. The structure and interaction of inner boundaries // Nanomechanics Science and Technology: An International Journal. 2013. Vol. 4, Issue 2. P. 133–143. doi: https://doi.org/10.1615/nanomechanicsscitechnolintj.v4.i2.30 

Regourd M., Mortureux B., Gautier E. Hidraulic Reactivity of Various Pozzolans // Proc. Fifth International Symposium on Concrete Technology. Mexico, 1981. P. 1–14.

Kjellsen K. O., Lagerblad B. Influence of natural minerals in the filler fraction on hydratation and properties of mortars. Stockholm, 1995.

Voznesenskiy V. A., Lyaschenko T. V., Ogarkov B. A. Chislennye metody resheniya stroitel'no-tekhnologicheskih zadach na EVM. Kyiv: Vischa shkola, 1989. 328 p.

Research into structure formation and properties of the fiber­reinforced aerated concrete obtained by the non­autoclaved hardening / Poznyak O., Sanytsky M., Zavadsky I., Braichenko S., Melnyk A. // Eastern-European Journal of Enterprise Technologies. 2018. Vol. 3, Issue 6 (93). P. 39–46. doi: https://doi.org/10.15587/1729-4061.2018.133594 

Poznyak O., Melnyk А., Soltysik R. The Properties and Peculiarities of structure formation of аerаted concrete // Internationale Baustofftagung. F.A. Finger-Institut fur Baustoffkunde. Bauhaus-Universitat Weimar. Bundesrepublik Deutschland. Tagungsbericht. Band 2. 2015. P. 959–966.

Influence of the Structure of a Material Solid Phase on the Properties of Cellular Concrete / Martynov V., Martynov E., Krylov I., Herega A. // International Journal of Composite Materials. 2015. Vol. 5, Issue 4. P. 79–80.

Modelirovanie pri otsenke haraktera struktury penobetona / Vyrovoy V. N., Martynov V. I., Vetoh A. M., Martynova E. A., Elkin V. V. // Stroitel'nye materialy, oborudovanie, tekhnologii XXI veka. 2014. Issue 11 (190). P. 11–13.

Krylov E. A., Martynov V. I. Analysis of Solid Phase Impact on Cellular Concrete Properties // Journal of technical university of moldova and moldavian engineering association. 2014. Issue 2 (57). Р. 35–37.

Gorshkov V. S., Timashev V. V., Savel'ev V. G. Metody fiziko-himicheskogo analiza vyazhuschih veschestv: ucheb. pos. Moscow: Vysshaya shkola, 1981. 335 p.

Index (inorganic) to the pouda diffraction file – ASTM. 1969. Publication PD1S – 1911. American society for testing and materials. York. Pensylvania, 1969. 216 p.







Copyright (c) 2019 Eugene Krylov, Volodymyr Martynov, Maksym Mykolaiets, Olena Martynova, Oleksandr Vietokh

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ISSN (print) 1729-3774, ISSN (on-line) 1729-4061