DOI: https://doi.org/10.15587/1729-4061.2019.164505

Effect of step heat treatment modes on the physical-mechanical properties of concrete

Tatiana Kugaevska, Viktor Sopov

Abstract


Heat treatment of waterproof heavy concrete samples using heated air in step modes is carried out. It is indicated that these experiments are an integral part of the research of the method of heat treatment of concrete and reinforced concrete products using the air heated in a solar energy collector (the products are in closed forms). It is noted that on cloudy days and in the cold period of the year, an electric heater is used.

It is emphasizedthat in certain cases, the time of intermittent clouds during the day will be relatively short, and it can be assumed that under such conditions the decrease in concrete hardening intensity due to the break in the heated air flow to the chamber will be negligible.

It is indicated that simulation of the air heating process in the solar energy collector is carried out using an infrared heater.

It is determined that the investigated step modes of heat treatment of heavy concrete with heated air give an opportunity to increase the compressive strength of concrete 1.59...1.76 times compared with hardening in air conditions. It is shown that the higher the heating intensity of the concrete of the studied composition during the first hour of heat treatment (in the range from 4 to 8 °С), the greater theconcrete compressive strength at 1 day.

It is recommended not to use an electricair heater for the purpose of energy saving in the warm period of the year in conditions of intermittent clouds.

It is found that in the investigated cases, concrete temperature after heat treatment in step modes after 4 hours 15 minutes was 30 °C, and concrete temperature after 22 hours of hardening in the chamber was 26.3...27.2 °C. It is specified that this concrete temperature at the end of hardening in the chamber indicates that relatively intensive hydration of cement occurs. It is recommended for similar cases to analyze the expediency of extending the period of concrete thermosetting in the chamber

Keywords


heavy concrete; solar heat treatment; heated air; step modes; compressive strength

Full Text:

PDF

References


Aruova, L. B., Dauzhanov, N. T. (2012). Using solar energy in heat treatment оf concrete in the Republic of Kazakhstan. Vestnik MGSU, 10, 142–146.

Dauzhanov, N. T., Krylov, B. A., Aruova, L. B. (2016). Optimization of solar cover’s parameters during the complex heat treatment of items from foamed concrete. Tekhnologii betonov, 9-10, 36–38.

Turdajieva, E. N., Iranova, N. A., Taitokurova, G. Z. (2016). Use of solar energy and the production of concrete precast. Izvestiya Oshskogo tekhnologicheskogo universiteta, 2, 87–90.

Usmanov, F. B., Ibodov, R. K., Hikmatov, F. S. (2016). Opredelenie raskhoda dopolnitel'noy energii pri kruglogodichnoy ekspluatacii geliopoligonov po vypusku sbornogo zhelezobetona. Molodoy ucheniy, 2, 247–250. Available at: https://moluch.ru/archive/106/25160/

Guettala, S., Benammar, B. (2016). Mechanical characteristics of concrete under initial steam curing using solar energy. Revue des Energies Renouvelables, 19 (1), 147–156.

Kugaevska, T. S. (2015). Development of methodology forecasting of intensity solidification concrete products in the alternative methods of heat treatment. Energy, energy saving and rational nature use. Oradea: Oradea University Press, 4–52.

Kugaevska, Т., Sopov, V., Shulgin, V. (2018). The Preliminary Concrete Delay Duration Influence on its Properties at Thermal Processing by Hot Air. International Journal of Engineering & Technology, 7 (3.2), 225. doi: https://doi.org/10.14419/ijet.v7i3.2.14407

Kugaevska, T. S., Shulgin, V. V., Sopov, V. P. (2018). Analysis of strength of concrete with a soft regime thermal processing by heating air. Scientific Bulletin of Civil Engineering, 91 (1), 179–185. doi: https://doi.org/10.29295/2311-7257-2018-91-1-179-185

Kugaevska, Т., Sopov, V., Shulgin, V. (2017). Solar energy efficiency for thermal processing of tiles of concrete. Budivelni materialy ta vyroby, 5-6 (96), 34–36.

Sopov, V., Kugaevska, T., Shulgin, V., Durachenko, H. (2018). Effect of heat treatment on the formation cement stone microstructure. International journal of engineering & technology, 7 (4.8), 323–327.

Al-Qadri, F. A., Saad, A. M., Aldlaee, A. A. (2009). Effect of some admixtures on heat of hydration reaction of cement pastes produced in Yemen, Saudi Arabia, and Egypt. Journal of Engineering Sciences, 37 (5), 1041–1048.

Selyaev, V. P., Kupriyashkina, L. I., Nugaeva, G. R., Kozlov, P. S. (2010). Kinetika izmeneniya teplovydeleniya napolnennyh cementnyh kompozitov. Vestnik Volzhskogo Regional'nogo Otdeleniya Rossiyskoy Akademii Arhitektury i Stroitel'nyh Nauk, 13, 200–203.

Lotov, V. A., Sudarev, E. A., Ivanov, Yu. A. (2011). Teplovydelenie v sisteme cement-voda pri gidratacii i tverdenii. Stroitel'nye materialy, 11, 35–37.

Nesvetaev, G. V., Ta Van Fan (2013). Heat release during hydration and compressive strength of cement stone. Internet-zhurnal «Naukovedenie», 3.

Butakova, M. D., Galyauv, R. F., Sartakov, A. S. (2016). The effect of additives on heat emission of concrete. Vestnik Yuzhno-Ural'skogo gosudarstvennogo universiteta. Seriya: Stroitel'stvo i arhitektura, 16 (4), 38–41.

Pavliuk, V. V., Tereshchenko, L. V., Bondar, K. V. (2010). Otsinka teplovydilennia tsementu zahalnobudivelnoho pryznachennia, modyfikovanoho khimichnymy dobavkamy. Resursoekonomni materialy, konstruktsiyi, budivli ta sporudy, 20, 82–87.

Mendrul, A. A., Burova, Z. A., Dekusha, L. V., Vorob'ev, L. I., Kirichenko, I. O. (2010). Provedenie kalorimetricheskogo analiza v processe gidratacii betonnyh smesey na ustanovke IT-7S. Promyshlennaya teplotekhnika, 32 (2), 105–112.

Kugaevska, T. S. (2017). Acceleration of the solidification of plates of concrete trotuar without a heater. Naukovyi visnyk budivnytstva, 89 (3), 172–176.

Irfan Sadaq, S., Nawazish Mehdi, S., Ishrath, M. M. et. al. (2015). Performance analysis of solar flat plate collector. International Journal of Mechanical And Production Engineering, 3 (5), 69–74.

Amrutkar, S. K. (2012). Solar Flat Plate Collector Analysis. IOSR Journal of Engineering, 02 (02), 207–213. doi: https://doi.org/10.9790/3021-0202207213


GOST Style Citations


Aruova L. B., Dauzhanov N. T. Using solar energy in heat treatment оf concrete in the Republic of Kazakhstan // Vestnik MGSU. 2012. Issue 10. P. 142–146.

Dauzhanov N. T., Krylov B. A., Aruova L. B. Optimization of solar cover’s parameters during the complex heat treatment of items from foamed concrete // Tekhnologii betonov. 2016. Issue 9-10. P. 36–38.

Turdajieva E. N., Iranova N. A., Taitokurova G. Z. Use of solar energy and the production of concrete precast // Izvestiya Oshskogo tekhnologicheskogo universiteta. 2016. Vol. 2. P. 87–90.

Usmanov F. B., Ibodov R. K., Hikmatov F. S. Opredelenie raskhoda dopolnitel'noy energii pri kruglogodichnoy ekspluatacii geliopoligonov po vypusku sbornogo zhelezobetona // Molodoy ucheniy. 2016. Issue 2. P. 247–250. URL: https://moluch.ru/archive/106/25160/

Guettala S., Benammar B. Mechanical characteristics of concrete under initial steam curing using solar energy // Revue des Energies Renouvelables. 2016. Vol. 19, Issue 1. Р. 147–156.

Kugaevska T. S. Development of methodology forecasting of intensity solidification concrete products in the alternative methods of heat treatment // Energy, energy saving and rational nature use. Oradea: Oradea University Press, 2015. Р. 4–52.

Kugaevska Т., Sopov V., Shulgin V. The Preliminary Concrete Delay Duration Influence on its Properties at Thermal Processing by Hot Air // International Journal of Engineering & Technology. 2018. Vol. 7, Issue 3.2. P. 225. doi: https://doi.org/10.14419/ijet.v7i3.2.14407 

Kugaevska T. S., Shulgin V. V., Sopov V. P. Analysis of strength of concrete with a soft regime thermal processing by heating air // Scientific Bulletin of Civil Engineering. 2018. Vol. 91, Issue 1. P. 179–185. doi: https://doi.org/10.29295/2311-7257-2018-91-1-179-185 

Kugaevska Т., Sopov V., Shulgin V. Solar energy efficiency for thermal processing of tiles of concrete // Budivelni materialy ta vyroby. 2017. Issue 5-6 (96). P. 34–36.

Effect of heat treatment on the formation cement stone microstructure / Sopov V., Kugaevska T., Shulgin V., Durachenko H. // International journal of engineering & technology. 2018. Vol. 7, Issue 4.8. Р. 323–327.

Al-Qadri F. A., Saad A. M., Aldlaee A. A. Effect of some admixtures on heat of hydration reaction of cement pastes produced in Yemen, Saudi Arabia, and Egypt // Journal of Engineering Sciences. 2009. Vol. 37, Issue 5. Р. 1041–1048.

Kinetika izmeneniya teplovydeleniya napolnennyh cementnyh kompozitov / Selyaev V. P., Kupriyashkina L. I., Nugaeva G. R., Kozlov P. S. // Vestnik Volzhskogo Regional'nogo Otdeleniya Rossiyskoy Akademii Arhitektury i Stroitel'nyh Nauk. 2010. Issue 13. P. 200–203.

Lotov V. A., Sudarev E. A., Ivanov Yu. A. Teplovydelenie v sisteme cement-voda pri gidratacii i tverdenii // Stroitel'nye materialy. 2011. Issue 11. P. 35–37.

Nesvetaev G. V., Ta Van Fan Heat release during hydration and compressive strength of cement stone // Internet-zhurnal «Naukovedenie». 2013. Issue 3.

Butakova M. D., Galyauv R. F., Sartakov A. S. The effect of additives on heat emission of concrete // Vestnik Yuzhno-Ural'skogo gosudarstvennogo universiteta. Seriya: Stroitel'stvo i arhitektura. 2016. Vol. 16, Issue 4. P. 38–41.

Pavliuk V. V., Tereshchenko L. V., Bondar K. V. Otsinka teplovydilennia tsementu zahalnobudivelnoho pryznachennia, modyfikovanoho khimichnymy dobavkamy // Resursoekonomni materialy, konstruktsiyi, budivli ta sporudy. 2010. Issue 20. P. 82–87.

Provedenie kalorimetricheskogo analiza v processe gidratacii betonnyh smesey na ustanovke IT-7S / Mendrul A. A., Burova Z. A., Dekusha L. V., Vorob'ev L. I., Kirichenko I. O. // Promyshlennaya teplotekhnika. 2010. Vol. 32, Issue 2. P. 105–112.

Kugaevska T. S. Acceleration of the solidification of plates of concrete trotuar without a heater // Naukovyi visnyk budivnytstva. 2017. Vol. 89, Issue 3. P. 172–176.

Performance analysis of solar flat plate collector / Irfan Sadaq S., Nawazish Mehdi S., Ishrath M. M. et. al. // International Journal of Mechanical And Production Engineering. 2015. Vol. 3, Issue 5. Р. 69–74.

Amrutkar S. K. Solar Flat Plate Collector Analysis // IOSR Journal of Engineering. 2012. Vol. 02, Issue 02. P. 207–213. doi: https://doi.org/10.9790/3021-0202207213 







Copyright (c) 2019 Tatiana Kugaevska, Viktor Sopov

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

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