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2014 | 23 | 4 |
Tytuł artykułu

The influence of high temperature on the properties of solidified suspension made of ash from fluidized combustion of lignite

Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Our article shows the results of research on ash-water solidified suspensions heated at high temperatures. The ash-water suspensions are used in underground coal mines to fill the voids and cavings resulting from exploitation. The heating of the solidified samples has been conducted to simulate conditions of the process of self-heating of residual coal substances. Similar conditions may also occur on the surface, e.g. during fires, and knowledge of the influence of the high temperatures on these type of materials may be useful when such substances are used as components of the building materials. For testing purposes we have used the ash from the fluidized bed combustion of lignite with and without the addition of the biomass. The conducted research covered the definition of the high temperature influence on the structure, leachability, phase composition, and mechanical properties of the suspension samples.
Słowa kluczowe
Wydawca
-
Rocznik
Tom
23
Numer
4
Opis fizyczny
p.1407-1411,fig.,ref.
Twórcy
autor
  • Faculty of Mining and Geoengineering, AGH University of Science and Technology, Krakow, Poland
autor
  • Faculty of Mining and Geoengineering, AGH University of Science and Technology, Krakow, Poland
autor
  • Faculty of Mining and Geoengineering, AGH University of Science and Technology, Krakow, Poland
Bibliografia
  • 1. AHMARUZZAMAN M. A review on the utilization of fly ash. Prog. Energ. Combust. 36, 327, 2010.
  • 2. RZEPECKI K. Method of disposal of combustion wastes coming from Turow Power Plant and related problems. Górnictwo i Geoinżynieria, 35, (3), 2011 [In Polish].
  • 3. PIOTROWSKI Z., POMYKAŁA R., KANAFEK J. The uti­lization of energy waste in Polish underground coalmines. WOCA 2009 Proceeding, International Ash Utilization Symposia Series, CAER UK, Lexington, 2009.
  • 4. PIOTROWSKI Z. Utilization of fine-grained waste in underground coal mining. Archiwum Górnictwa, Wyd. IMG PAN, 2011 [In Polish].
  • 5. DZIURZYŃSKI W., POMYKAŁA R. Fly ash suspension with CO2 as a new method of gob fire prevention in coalmines, New technological solutions in underground mining: International Mining Forum, Balkema Publishers, 2006, 107, 2006.
  • 6. BEDNAREK Z., KRZYWOBŁOCKA-LAURÓW R., DRZYMAŁA T. The effect of high temperature on the struc­ture, phase composition and strength of concrete. Zeszyty Naukowe SGSPNo. 38, Warszawa, 2009 [In Polish].
  • 7. CULFIK M.S., OZTURAN T. Effect of elevated tempera­tures on the residual mechanical properties of high-perfor­mance mortar. Cement Concrete Res. 32, 809, 2002.
  • 8. YUZER N, AKOZ F., OZTUK L.D. Compressive strength- color change relation in mortars at high temperature. Cement Concrete Res. 34, 1803, 2004.
  • 9. CHAN Y.N., LUO X., SUN W. Compressive strength and pore structure of high-performance concrete after exposure to high temperature up to 800°C. Cement Concrete Res. 30, 247, 2000.
  • 10. HANZLtCEK T. PERNA I. Thermal resistance of foamed fluidized bed ashes. Acta Geodyn. Geomater., 8, 2, (162), 115, 2011.
  • 11. DJAKNOUN S., OUEDRAOGO E., AHMED BENYAHIA A. Characterization of the behavior of high performance mortar subjected to high temperatures. Constr. Build. Mater. 28, 176, 2012.
  • 12. ROSIK-DULEWSKA CZ., KARWACZYNSKA U. Methods of contaminants leaching from waste mineral in terms of the possibility of their use in building hydro. Annual Set The Environment Protection 10, 205, 2008 [In Polish].
  • 13. THEIS T.L., WIRTH J. L. Sorptive or trace metals on fly ash in aqueous systems. Environ. Sci. Technol., 11, 12, 1097, 1977.
Uwagi
rekord w opracowaniu
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.agro-006555be-e062-4900-8046-dbdc7c64da15
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