National Repository of Grey Literature 4 records found  Search took 0.01 seconds. 
Effect of Selected Variables on the Properties and Stability of Ettringite
Kramoliš, Lukáš ; Kulísek, Karel (referee) ; Fridrichová, Marcela (advisor)
The thesis deals with the termodynamic stability of synthetically formed ettringite. It focuses on ettringite prepared by the direct synthesis of aluminum sulphate and calcium hydroxide. Stamples were stored in a laboratory environment and in a saturated water vapor. Monitoring of mineralogical composition was performed using XRD analysis, differential thermal analysis (DTA) and scanning electron microscopy (SEM).
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).
Effect of Selected Variables on the Properties and Stability of Ettringite
Kramoliš, Lukáš ; Kulísek, Karel (referee) ; Fridrichová, Marcela (advisor)
The thesis deals with the termodynamic stability of synthetically formed ettringite. It focuses on ettringite prepared by the direct synthesis of aluminum sulphate and calcium hydroxide. Stamples were stored in a laboratory environment and in a saturated water vapor. Monitoring of mineralogical composition was performed using XRD analysis, differential thermal analysis (DTA) and scanning electron microscopy (SEM).
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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