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Calcium aluminates - hydration under various initial conditions
 Tomala, Libor ; Másilko, Jiří (referee) ; Koplík, Jan (advisor)
This thesis deals with the preparation of calcium aluminate phases, namely monocalcium aluminate (CA), monocalcium dialuminate (CA2) and dodecalcium heptaaluminate (C12A7) and their hydration at temperatures of 20, 30 and 60 ° C. Preparation was carried out by sintering aluminium oxide and calcium carbonate in the correct molar ratio at a temperature typical for each of the phase preparation (1450, 1600 respectively 1360 ° C) in superkanthal furnace. Firings were conducted repeatedly until reaching the sufficient purity, which was determined by X-ray diffraction analysis on the diffractometer Empyrean from the PANalytical company. The pure calcium aluminate phases were subsequently hydrated in the already mentioned temperatures and progress was monitored on TAM Air isothermal calorimeter made by TA Instruments. The resulting hydrated products were identified again by using XRD.
Detailed record
Calcium aluminates - hydration under various initial conditions
 Tomala, Libor ; Másilko, Jiří (referee) ; Koplík, Jan (advisor)
This thesis deals with the preparation of calcium aluminate phases, namely monocalcium aluminate (CA), monocalcium dialuminate (CA2) and dodecalcium heptaaluminate (C12A7) and their hydration at temperatures of 20, 30 and 60 ° C. Preparation was carried out by sintering aluminium oxide and calcium carbonate in the correct molar ratio at a temperature typical for each of the phase preparation (1450, 1600 respectively 1360 ° C) in superkanthal furnace. Firings were conducted repeatedly until reaching the sufficient purity, which was determined by X-ray diffraction analysis on the diffractometer Empyrean from the PANalytical company. The pure calcium aluminate phases were subsequently hydrated in the already mentioned temperatures and progress was monitored on TAM Air isothermal calorimeter made by TA Instruments. The resulting hydrated products were identified again by using XRD.
Detailed record

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