National Repository of Grey Literature 94 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Capacity Planning Tool for Project Management Support
Zatloukal, Tomáš ; Dvořák, Karel (referee) ; Luhan, Jan (advisor)
This master’s thesis deals with the design and realization of support software tool for production capacity planning in selected company. Functionality of the application will be designed according to theoretical findings (from the area of process management and business informatics) and analysis of business processes and user requirements. Final support tool should facilitate all management decisions regarding long-term planning of production and will be implemented in Microsoft Excel and Visual Basic for Applications.
Making AFt Stages of Hydration of Cement Mixed with Fluidized Fly Ash
Skřeček, Miroslav ; Dvořák, Karel (referee) ; Fridrichová, Marcela (advisor)
The work focuses possibilities of using FBC ash for composite cements. This thesis is oriented on monitoring and making AFt stages of hydration of composite cements. It is oriented on laboratory preparing of synthetic ettringit and thaumasite.
Preparation of the different C3S polymorphs and the determination of their properties
Ravaszová, Simona ; Všianský,, Dalibor (referee) ; Dvořák, Karel (advisor)
Diploma thesis deals with the methodology of preparation of Alit – the main clinker mineral. The content of this work involves design and optimization of the methodology of preparation of pure Alit polymorphs, analysis of their properties by available analytical methods and evaluation of the change of crystallinity in the process of preparation of these polymorphs by XRD-analysis.
Research in the field of preparation of anhydrite binders
Hanáček, Jan ; Dvořák, Karel (referee) ; Gazdič, Dominik (advisor)
The presented bachelor´s work deals with a research and development of sulphate binders on a base of anhydrite with focus on its potential usage in the industrial production of dry mortar mixtures. Within the scope of this work a mineralogical analysis of two industry gypsum was performed as well as an assessment of technological attributes while hydrating a laboratory burnt anhydrite II.
Methods of excitation of binders based on anhydrite
Sedlák, Michal ; Dvořák, Karel (referee) ; Gazdič, Dominik (advisor)
The bachelor thesis deals with the internal excitation of anhydrite-based mortars. In the theoretical part, the general theory of sulphate binders, the formation of gypsum binders and their resulting products during firing are described. The theoretical part also describes the anhydrite mortars, their hydration process and collects the existing research on anhydrite excitation in the world, where, among other things, it deals with the further usability of the resulting gypsum by-products. The experimental part focuses on the internal excitation of anhydrite, which is based on the existing research at the THD Institute. The work builds on previous studies that also dealt with internal excitation research. It includes an experiment performed to optimize the thermal regime in the form of increased isothermal endurance with subsequent evaluation by XRD analysis.
Synthetic Preparation and Properties of Thaumasite
Klásková, Silvie ; Dvořák, Karel (referee) ; Fridrichová, Marcela (advisor)
This thesis continues in the monitoring of thaumasite thermodynamic stability. It mainly deals with mineral properties and possible ways of its synthetic preparation. Mineralogical composition determined using X-ray diffraction analysis as well as possible impact of sample storage conditions can help further property identification. Based on the obtained radiographs, thaumasite mineral can be well distinguished from the very similar ettringite mineral.
Possibility to reduce CO2 emissions in the production of Portland cements.
Dobrovolný, Petr ; Fridrichová, Marcela (referee) ; Dvořák, Karel (advisor)
This thesis is dedicated to reducing CO2 emissions in the production of portland cement with admixtures II. species. It explores the possibility of using recycled glass as hydraulically active substance dependence pucolanity on progress and how specific surface grinding. The resulting admixture is examined from the chemical, mineralogical and technological perspective.
Effect of different grinding technologies on the properties of Portland cement
Švéda, Matěj ; Gazdič, Dominik (referee) ; Dvořák, Karel (advisor)
This bachelor thesis summarizes the conventional grinding technologies used in the manufacture of Portland cement. It also studies technologies potentialy useable in greater depth, specifically high-energy milling using mechanochemical activation. The effect of surfactants is also observed.
Thermodynamic Stability of Ettringite
Křižanová, Lucie ; Dvořák, Karel (referee) ; Fridrichová, Marcela (advisor)
This thesis deals with the thermodynamic stability of ettringite, which is produced during hydration of yeelimite clinker with alite in the system. The stability was studied in a laboratory environment and in a saturated water steam at low and elevated temperatures.
Analysis of the grinding process of the clinker minerals
Klapka, Michal ; Gazdič, Dominik (referee) ; Dvořák, Karel (advisor)
The thesis deals with optimalization of the process of creating pure brownmillerite phase. The goal is to successfully synthetize C4AF and then grind it using three different milling technologies. Using XRD – analysis to explore the influences of milling technologies on crystallinity of brownmillerit.

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