Fly ash as a raw material in cement industry

• Autorzy: Stevulova N. , Mezencevova A.
• Konferencja: IX Konferencja Naukowa Rzeszowsko-Lwowsko-Koszycka Aktualne problemy budownictwa i inżynierii środowiska. Jakość - Niezawodność - Bezpieczeństwo, Rzeszów, 3-4 września 2004. Cz.2. Inżynieria Środowiska
• Języki publikacji: EN

Abstrakty

EN

The mechanochemical synthesis of alternative inorganic material by means of the second raw materials seems to be very interesting. This paper is aimed at studying structural changes in reactive mixtures composed of fluidised fly ash and calcite or portlandite with Ca/Si ratio of 2 and 3 respectively during high-energy dry milling in planetary ball mill and subsequent calcination at temperatures up to 1200°C. The results of the XRD measurements have confirmed that mechanochemical treatment and subsequent calcination is a suitable way to calcium silicates preparation (C2S and C3S) from reactive mixtures of fluidised fly ash and calcium compound and to the utilization of fly ash as a basic raw material in the cement production.

• Wydawca: Oficyna Wydawnicza Politechniki Rzeszowskiej
• Czasopismo: Zeszyty Naukowe Politechniki Rzeszowskiej. Budownictwo i Inżynieria Środowiska
• Rocznik: 2004
• Tom: z. 37[211], cz.2
• Strony: 407--411
• Opis fizyczny: Bibliogr. 5 poz.

Twórcy

autor

Stevulova N.

• Technical University Kosice

autor

Mezencevova A.

• Technical University Kosice

Bibliografia

• [1] Tkáčová K., Mechanical activation of minerals. Elsevier, Amsterdam-Oxford-New York-Tokyo, 1989.
• [2] Tkáčová K., Števulová N., Mechanical activation of solid state processes using grinding and its importance for advanced technologies of ceramic materials production, Ceramics-Silikáty, vol. 36, pp. 109-117, 1992 (in Slovak).
• [3] Števulová N., Mezencevová A., Boldižárová E., Mechanochemical changes of fluidized fly ash at high-energy planetary ball milling, Book of Abstracts of IVth International Conference on Mechanochemistry and Mechanical Alloying "INCOME "2003", Brauschweig, P-II-53, 2003.
• [4] Števulová N., Mezencevová A., Boldižarová E., Mechanochemical synthesis of calcium silicate with Ca/Si =2, Chemické listy, vol. 97, pp. 872-873, 2003.
• [5] Sasaki K., Masuda T., Ishida H., Mitsuda T.: Synthesis of calcium silicate hydrates with Ca/Si=2 by mechanochemicel treatment, J. Am. Ceramic. Soc. 80, pp. 472-476, 1996.