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Study of the properties of the ettringite which was produced synthetically
Hučínová, Lenka ; Jiroušková, Kateřina (referee) ; Fridrichová, Marcela (advisor)
Up to present, ettrigite has been prepared by two means in the Institute of Technology of Building Materials and Components of the BUT Faculty of Civil Engineering: originally by the hydration of the yeelimite clinker; recently by the direct synthesis of ettringite from calcium hydroxide and aluminum sulfate, the latter being considered more suitable in qualitative and quantitative terms. This diploma thesis focuses on the comparison of both means, using ettringite produced by the latter as control sample. This endeavor focuses on monitoring the stability of ettringite and its possible conversion to other minerals using X-ray diffraction analysis, thermal analysis and scanning electron microscopy (SEM).
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Synthetic Preparation and Properties of Ettringite
Vlachovský, David ; Kulísek, Karel (referee) ; Fridrichová, Marcela (advisor)
The work is focused on properties and behavior of ettringite in relation to external environment conditions. It concentrates on the mineralogical composition of ettringite prepared by the method of direct synthesis of aluminium sulphate octadecahydrate and calcium hydroxide at various humidities. Depending on these factors, the formation of ettringite and its possible conversion to other minerals was observed.
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