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Binders and Mixtures Based on Calcium Sulfate
Hanáček, Jan ; Smetanová,, Lenka (referee) ; Gazdič, Dominik (advisor)
This Diploma Thesis deals with the research and advancements in the field of sulphate binders, especially the anhydrite binder. The theoretical part of the thesis is dedicated to the fundamentals of sulphate binders and anhydrite binders. Its second part also introduces standard requirements for screed coatings together with technological methods of their application. Practical part of the thesis looks at the research and production of anhydrite binder with special emphasis on self-levelling compounds. Various types of plasticizers were used in these compounds and their effectiveness and final product quality are compared.
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Diagnostics of flooring failures and defects in the housing and civic construction
Vrtal, Roman ; Žítt, Petr (referee) ; Schmid, Pavel (advisor)
The object of the thesis is a description of preparation process, realization and subsequent treatment of floors based on calcium sulphate, including problems related to the issue. The aim of the work is to closely acquaint the reader with methods used in diagnostics of flooring failures and defects in the housing and civic construction, including practical applications of these methods on real structures. The work also includes experimental analysis of a real floor construction during local load effect.
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Research in the Field of Anhydrite Binders
Břicháčková, Jana ; Smetanová, Lenka (referee) ; Gazdič, Dominik (advisor)
The presented work deals with research in the field of sulfate binders on the anhydrite base. Conceptually, it is divided into a general theory of sulfate binders and anhydrite mortar compounds, which is describing in detail the using of anhydrite mortar compounds on the poured floor screeds, and then the experimental part, where is made the mineralogical analysis of seven different gypsum resources and subsequent is monitored the effect of two sulfate exciters on the achieved technological properties and hydration process.
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The admixtures which are influencing setting time of portland cement
Hlaváček, Jaroslav ; Kalina, Lukáš (referee) ; Opravil, Tomáš (advisor)
During the production of concrete is important the careful selection of raw materials. Nowadays, we are trying in the production to minimize the economic burden and to maximize the use of secondary raw materials. This work is focused on the use of secondary raw materials from the energy industry in construction for the preparation of hydraulic binders. As the main raw materials were used different power plant fly ash from fluidized combustion. The composition of these secondary materials is quite different from conventional high-temperature ash, due to mixing with water they solidify and harden. Experiments were performed with three lodge fly ash from electrostatic precipitators of the fluidized combustion and one high-temperature fly ash. This work is focused on the possibility of monitoring the use of these secondary materials in construction, especially when tests were evaluated characteristics of strength and speed of setting and hardening.
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Possibilities of clay plasters shrinkage elimination
Melichar, Jindřich ; Koplík, Jan (referee) ; Opravil, Tomáš (advisor)
Earth plasters which are applicated in interiers don´t have just an estetic, but mainly heat storage function. To accomplish better storage properties the plaster has to be laid on the wall in sufficient thick ply. But this use to be accompained by creating of cracks during dehydration of the plaster. This bachelor work will be considering possibilities of elliminating this negative event by additing suitable components to suppress shrinkage and cracks by creating ettringite.
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Volume changes of concrete based on reactive powder components and possibilities of their regulation with chemical admixtures
Hlaváček, Jaroslav ; Kalinová, Helena (referee) ; Opravil, Tomáš (advisor)
Very high strength of RPC allows them to an unusual extreme possibilities of their applications. Volume change (shrinkage) negatively affects their relatively broad range of applications, particularly in applications which are used for filling tubes or other components. In today's advanced time with plenty of chemical ingredients and additives on the market (such as the expansion component) could be a side effect of this largely eliminated, or removed entirely. Only some components of the expansion will be appropriate for RPC cements. This reaserch investigates the expansion of ingredients on the basis of sulfates and monitors not only volume changes, but also the strength characteristics and tolerability of the tested anchors tested with a matrix component of the expansion.
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Research in the preparation of self-leveling anhydrite screeds
Běťák, Rostislav ; Smetanová,, Lenka (referee) ; Gazdič, Dominik (advisor)
Bachelor´s thesis extends the existing results in the field of research of an anhydrite binder and it is divided into two sections. The theoretical section is focused on general sulphate binders and anhydrite binders. Further it contains the description of the technology of floor screed application, demands of norms and comparison of screeds, which are used nowadays. The experimantal section concrens with the research and the development of an anhydrite binder and mainly the utilization of this binder in the field of cast self-leveling floor screeds. For the preparation of self-leveling mixtures were used two different types of anhydrite and theirs main features were compared.
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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.
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Technological stage of realization floors of housing building
Kajzarová, Jitka ; Ing.Lukáš Kopecký (referee) ; Diaz, Yvetta (advisor)
This bachelor thesis deals with the construction and the technological phase of the implementation of floors in an apartmant complex „Sladké město“, located in northwestern suburbs of the town of Olomouc. The main part of the work are technological regulations for self-leveling floor and the floor of the anhydrite. Further, the bachelor thesis deals with the situation of wider relations, principles of organization of construction, suggestion of machine composition, inspection and test plan, healt and safety at work and itemized budget with the time schedule.
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Study of anhydrite binder
Břicháčková, Jana ; Fridrichová,, Marcela (referee) ; Gazdič, Dominik (advisor)
The present work deals with research in the preparation of sulphate anhydrite binders based. It is conceptually divided into a general theory of sulphate anhydrite binders and binders, focusing in particular anhydrite cast floors, as well as search anhydrite binders of research training at the Institute of THD and study requirements for screed materials, with emphasis on anhydrite screed mix.
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