AbstractAbout AuthorsReferences
Results of the experimental study to establish the possibility of obtaining gas concrete on the basis of lime-cement binder and carbonate-calcium filler (marble-like limestone), hardening of which is arranged according to hydration and carbonation type, are presented. Features of physical-chemical transformations in the body of the porous material, when organizing its hardening in media with high concentration of carbon dioxide gas, are revealed. It is established that the forced carbonation contributes to the hardening of the crystalline skeleton of gas concrete and improving of its strength comparing with the samples of hydration hardening as a result of heat-humidity treatment (HHT). It is shown that the combined (HHT with subsequent carbonation) method of hardening of gas concrete samples on the basis of the mixed binder provides conditions both for process of hydration hardening of cement minerals and carbonate hardening that causes the appearance of the maximum amount of crystalline hydrate and carbonate new formations and improvement in the strength. The compression strength of gas concrete immediately after artificial hardening is 90% of the strength at age of 28 days. Revealed features of physical-chemical processes make it possible to optimize the conditions of production of heat-insulation and heat insulation-structural gas concretes with improved physical-mechanical properties.
N.V. LYUBOMIRSKY, Doctor of Sciences (Engineering) Professor, (This email address is being protected from spambots. You need JavaScript enabled to view it.),
E.Yu. NIKOLAENKO, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
V.V. NIKOLAENKO, Engineer,
A.S. BAKHTIN, Candidate of Sciences (Engineering),
T.A. BAKHTINA, Candidate of Sciences (Engineering)
E.Yu. NIKOLAENKO, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
V.V. NIKOLAENKO, Engineer,
A.S. BAKHTIN, Candidate of Sciences (Engineering),
T.A. BAKHTINA, Candidate of Sciences (Engineering)
V.I. Vernadsky Crimean Federal University (4, Vernadskogo Prospekt, Simferopol, Republic of Crimea, 295007, Russian Federation)
1. Mikhaylov N.N., Kuznetsov A.M. Artificial carboniza- tion as a way to increase the activity of dolomitic astrin- gent. Stroitel’nye materialy [Construction Materials]. 1960. No. 9, pp. 28–30. (In Russian).
2. Kaminskas A.Yu., Mataitis A.I. New two-stage way of concreting of limy and sand products. Stroitel’nye mate- rialy [Construction Materials]. 1970. No. 6, pp. 32–35. (In Russian).
3. El’kina I.I., Fedorkin S.I. Influence of a carbonization on durability of the pressed exemplars from a wastage of rocks on cement and limy and cement knitting. Stroitel’stvo i tekhnogennaya bezopasnost’. 2012. No. 44, pp. 41–45. (In Russian).
4. Pol’mann Kh. The Ways to reduce CO2 emissions in the production of alternative cements. Tsement i ego primen- enie. 2016. No. 2, pp. 89–93. (In Russian).
5. Fedorkin S.I., Lyubomirskii N.V., Luk’yanchenko M.A. Systems based on lime of carbonization hardening. Stroitel’nye materialy [Construction Materials]. 2008. No. 11, pp. 45–47. (In Russian).
6. Chizhov S.V., Kuznetsov S.A. Prediction of process of a carbonization of concrete Perspektivy nauki. 2014. No. 11, pp. 76–81. (In Russian).
7. Svit T.F., Semin D.S. About change of structure of prod- ucts of hydration of cement. Polzunovskiy vestnik. 2006. No. 2, pp. 220–224. (In Russian).
8. Anikanova T.V., Rakhimbaev Sh.M., Kaftaeva M.V. On the mechanism of carbon dioxide corrosion of building materials. Fundamental’nye issledovaniya. 2015. No. 5, pp. 19–26. (In Russian).
9. Rakhimbaev Sh.M. Principles of choosing cements for use in chemical aggression. Izvtstiya vuzov. Stroitel’stvo. 1998. No. 10, pp. 65–68. (In Russian).
10. Chernyshev E.M., Potamoshneva N.D., Kukina O.B. Portlandite and portlandite-carbonate cementless curing systems. Part. 2. Stroitel’nye materialy, oborudovanie, tekhnologii XXІ veka. 2002. No. 5, pp. 8–9. (In Russian).
11. Dvorkin L.I., Dvorkin O.L. Stroitel’nye mineral’nye vyazhushchie materialy [Building mineral knitting materi- als]. Мoscow: Infra-Inzheneriya. 2011. 544 p.
12. Funk A., Salakh Uddin K.M., Vettsel’ A., Middendorf B. Carbonation of portlandite in low humidity conditions. Tsement i ego primenenie. 2016. No. 5, pp. 88–92. (In Russian).
2. Kaminskas A.Yu., Mataitis A.I. New two-stage way of concreting of limy and sand products. Stroitel’nye mate- rialy [Construction Materials]. 1970. No. 6, pp. 32–35. (In Russian).
3. El’kina I.I., Fedorkin S.I. Influence of a carbonization on durability of the pressed exemplars from a wastage of rocks on cement and limy and cement knitting. Stroitel’stvo i tekhnogennaya bezopasnost’. 2012. No. 44, pp. 41–45. (In Russian).
4. Pol’mann Kh. The Ways to reduce CO2 emissions in the production of alternative cements. Tsement i ego primen- enie. 2016. No. 2, pp. 89–93. (In Russian).
5. Fedorkin S.I., Lyubomirskii N.V., Luk’yanchenko M.A. Systems based on lime of carbonization hardening. Stroitel’nye materialy [Construction Materials]. 2008. No. 11, pp. 45–47. (In Russian).
6. Chizhov S.V., Kuznetsov S.A. Prediction of process of a carbonization of concrete Perspektivy nauki. 2014. No. 11, pp. 76–81. (In Russian).
7. Svit T.F., Semin D.S. About change of structure of prod- ucts of hydration of cement. Polzunovskiy vestnik. 2006. No. 2, pp. 220–224. (In Russian).
8. Anikanova T.V., Rakhimbaev Sh.M., Kaftaeva M.V. On the mechanism of carbon dioxide corrosion of building materials. Fundamental’nye issledovaniya. 2015. No. 5, pp. 19–26. (In Russian).
9. Rakhimbaev Sh.M. Principles of choosing cements for use in chemical aggression. Izvtstiya vuzov. Stroitel’stvo. 1998. No. 10, pp. 65–68. (In Russian).
10. Chernyshev E.M., Potamoshneva N.D., Kukina O.B. Portlandite and portlandite-carbonate cementless curing systems. Part. 2. Stroitel’nye materialy, oborudovanie, tekhnologii XXІ veka. 2002. No. 5, pp. 8–9. (In Russian).
11. Dvorkin L.I., Dvorkin O.L. Stroitel’nye mineral’nye vyazhushchie materialy [Building mineral knitting materi- als]. Мoscow: Infra-Inzheneriya. 2011. 544 p.
12. Funk A., Salakh Uddin K.M., Vettsel’ A., Middendorf B. Carbonation of portlandite in low humidity conditions. Tsement i ego primenenie. 2016. No. 5, pp. 88–92. (In Russian).
For citation: Lyubomirsky N.V., Nikolaenko E.Yu., N.ikolaenko V.V., Bakhtin A.S., Bakhtina T.A. Impact of Forced Carbonation on Formation of Gas Concrete Structure on the Basis of a Lime-Cement Binder and Carbonate-Calcium Filler. Stroitel’nye Materialy [Construction Materials]. 2017. No. 5, pp. 48–51. DOI: https://doi.org/10.31659/0585-430X-2017-748-5-48-51. (In Russian)