Obtaining porous thermal insulating materials based on ash from thermal power plants

• Autorzy: Kryzhanivskyi Yevstakhii , Koshlak Hanna
• Języki publikacji: EN

Abstrakty

EN

We report results of research into processes of formation of porous structure by the method of thermal bloating of the gellike mixture of raw materials. Regularities of the course of physicalchemical transformations are considered in the material when it is heated; as a result, we established the initial water content in the raw mixture, optimal for the formation of xerogel, and the residual water content in gel, sufficient for effective bloating. We proposed the optimized composition of the raw mixture that employs maximally permissible amount of ash as a mineral filler; the thermal modes of bloating are studied. Based on the data obtained, a new technology for the production of porous thermal insulation materials is created. New porous thermal insulation materials were obtained using soluble glass as a binding component; foaming agent; regulator of hardening rate of the mixture. The basic thermophysical properties were determined.

Słowa kluczowe

EN

fly ash; thermal power plant; technology; thermophysical characteristics; building material

• Wydawca: Kielce University of Technology
• Czasopismo: Journal of New Technologies in Environmental Science
• Rocznik: 2020
• Tom: Vol. 4, nr 1
• Strony: 3--12
• Opis fizyczny: Bibliogr. 12 poz., fot., rys., tab., wykr., wzory

Twórcy

autor

Kryzhanivskyi Yevstakhii

• Academician of NASU

autor

Koshlak Hanna

• Ivano-Frankivsk National Technical University of Oil and Gas, Ukraine

Bibliografia

• [1] Pavlenko A., Design of the thermal insulation porous materials based on technogenic mineral fillers, Pavlenko A., Koshlak H., Eastern-European journal of enterprise technologies, 2017, No 5/12(89), pp. 58-65.
• [2] Pavlenko A., Thermal insulation materials with porous structure, Pavlenko A., Koshlak H., Structure and Environment, 2018, Vol. 10, No. 3, pp. 258-265.
• [3] Gorlov Yu. P., Texnologiya teploizolyacionnyx materialov, Gorlov Yu. P., Merkin A. P., Ustenko A. A., M.: Strojizdat, 1980, 399 s.
• [4] Vasilєv L. L., Teplofizicheskie svojstva poristyx materialov, Vasilev L. L., Tanaeva A. S., Minsk: Nauka i texnika, 1971, 268 s.
• [5] Kaufman B. N., Teploprovodnost stroitelnyx materialov, Kaufman B. N., M.: Gosudarstvennoe izdatelstvo literatury po stroitelstvu i arxitekture, 1955, 161 s.
• [6] Xiks Ch., Osnovnye principy planirovaniya eksperimenta, Nalimova V. V. (ed). Moskva: Mir, 1967, 406 s.
• [7] Okuyama K., Boiling propagation of water on a smooth film heater surface, Okuyama K., Kim J.-H., Mori S., Iida Y., International Journal of Heat and Mass Transfer, 2006, Vol. 49, Issue 13-14, pp. 2207-2214. doi: 10.1016/j.ijheatmasstransfer. 2006.01.001.
• [8] Malyavskiy N. I., Tekhnologii polucheniya vodostoykogo shchelochno-silikatnogo uteplitelya iz zhidkogo stekla, modificirovannogo alyuminiem, Malyavskiy N. I., Pokid’ko B. V. m Krovel’nye i izolyacionnye materialy, 2006, Issue 4, pp. 60-62.
• [9] Eom J.-H., Processing and properties of macroporous silicon carbide ceramics: A review, Eom J.-H., Kim Y.-W., Raju S., Journal of Asian Ceramic Societies, 2013, Vol. 1, Issue 3, pp. 220-242, doi: 10.1016/j.jascer.2013.07.003.
• [10] Shaw S., Dehydration/recrystallization mechanisms, energetics, and kinetics of hydrated calcium silicate minerals: an in situ TGA/DSC and synchrotron radiation SAXS/WAXS study, Shaw S., Henderson C.M.B., Komanschek B. U., Chemical Geology, 2000, Vol. 167, Issue 1-2, pp. 141-159, doi: 10.1016/s0009-2541(99)00206-5.
• [11] Wang X., Development of lightweight aggregate from dry sewage sludge and coal ash, Wang X., Jin Y., Wang Z., Nie Y., Huang Q., Wang Q., Waste Management, 2009, Vol. 29, Issue 4, pp. 1330-1335, doi: 10.1016/j.wasman.2008.09.006.
• [12] Volland S., Lightweight aggregates produced from sand sludge and zeolitic rocks, Volland S., Brötz J., Construction and Building Materials, 2015, Vol. 85, pp. 22-29, doi: 10.1016/j.conbuildmat.2015.03.018.

Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).