Przemiany fazowe i temperaturowe odpadowego popiołu lotnego

Abstract

In the paper were introduced results of the chemical, granulometric and phasic composition, of the chosen kind of the fly-ash, being characterized with the comparatively large content of the $SiO_2$ and $Al_2O_3$ and the average content of the $CaO$, comparatively to analogous chemical compounds in the fly-ashes. Qualified values of the characteristic temperatures of the phasic and temperature transformations were executed. Ascertained, that the geometry of the sample of the investigated kind of the fly-ash does not change under of the temperature carrying out to about 1200 °C. Such fly-ash can be functional ceramic material of the mouldung sands for casting metals, whose pouring temperature does not exceed 1200 °C.