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Testing of binders of thermal insulations for specific applications on technical appliances
Maňák, Jan ; Kulísek, Karel (referee) ; Petránek, Vít (advisor)
This work focus on testing alcali-activated binders for thermal insulation which could be used for special industry devices. In the beginning of this work is presented example of thermal energy storage where these specific alcali-activated materials can be used. Ensuingly two construction with thermal energy storage tanks are mentioned. Most of the interest aims on ageing and rheological properties of alcali-activated binder. Some rheological methods are also discussed. In the end of this work is added practical experience.
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Optimizing requirements for wood coatings
Bednářová, Ilona ; Petránek, Vít (referee) ; Vaněrek, Jan (advisor)
The work deals with wood coating systems. It is focused on the theoretical division of paints due to different aspects, moreover on testing of wood coating systems. In the practical part of the work, the experimental work regarding the influence of weather conditions onto durability of different wood coatings system was preceded. They were compared two different coatings within the basic tests in different environments.
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Properties of Fiber Reinforced Plastics
Jastrzembská, Alena ; Petránek, Vít (referee) ; Bodnárová, Lenka (advisor)
This thesis deals with the theoretical part of raw materials, production and properties of composite materials with fiber reinforcement and polymer matrix. It also gives a brief overview of selected prominent Czech and foreign producers of composite materials with polymer matrix and fiber reinforcement. The practical section deals with testing the durability of selected composite profiles immersion in aggressive environments and testing of compressive strength.
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Influence of material base of coating systems onto wood durability
Bednářová, Ilona ; Petránek, Vít (referee) ; Vaněrek, Jan (advisor)
The thesis deals with the influence of the base material of the coating systems for wood durability when we exposed them to external conditions. The theoretical part is devoted to wood durability and weather resistance with a detailed description of the tests the durability of coating systems. A substantial part of the theory is devoted to description binder component of the coating material. In the practical part was performed the experiment, which examined the influence of the thickness of the coating system, the type of coating material (paint or lasure) as well as the type of binder (water dispersion with an alkyd or acrylic resin, respectively solution coating system with the alkyd resin). All coating systems were exposed to natural and artificial durability tests. The criterions for evaluation were chosen differences of colours.
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Development of Resistant Coating Systems Based on Polymer Binders
Voráčová, Veronika ; Vyhnánek, Miroslav (referee) ; Petránek, Vít (advisor)
The aim of the thesis is to propose the use of waste materials as filler for the selected coating systems used for chemical protection of concrete surfaces.The used filler could not affect the existing binder of the coating system. Research was conducted using two materials N141 and N 121. The waste material was chosen by his chemical and physical properties. Between suitable materials belongs slag, fly ash, foundry sand and glass waste. The selection based on Lena Chemical s.r.o companies request was selected glass waste. The practical part includes examination as fillers, and the corresponding tests for coating systems with pre-used filler. Finally, the assessment of the suitability of the materials used.
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Polymer protective systems for concrete floors
Novotná, Adéla ; Vyhnánek, Miroslav (referee) ; Petránek, Vít (advisor)
The thesis is addressing the testing of protective polymer layers, which are used mainly for industrial floors. A summary table of standards is presented, dividing the test carried out on the binders, fillers, fresh mixture and polymerized material. Non standardize tests are described in detail in a very similar way as it is performed by the Institute of Technology of Building Materials and Components. The second part of my thesis is devoted to testing of the reference material and material filled with raw substances. Based on recommendations of Lena Chemical Company, filler – ground windscreen glass will be used. On this type of mixture selected set of tests needed for construction and technical certificates was performed.
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Research and development grout and anchor masses
Žlebek, Tomáš ; Petránek, Vít (referee) ; Drochytka, Rostislav (advisor)
Modern anchor and grout systems are now at a high level and they are used in many branches of industry. This thesis evaluates the current state of anchoring and grouting systems, research of currently used material basis, testing procedures and up to date legislation for these types of materials. Above all, the thesis is focused on the chemical types of anchor and grout materials for utilization in industrial production facilities with exposure to extreme loads, a new methodology for testing of these types of materials and input raw materials will be proposed. The final part of this thesis is a proposal of new optimum formulas for anchoring and grouting materials for utilization in industrial production facilities with exposure to extreme loads including the description of their applications.
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Exploitation of Infrared Spectroscopy for Determination of Polymer Admixtures in Cement Composites
Novotný, David ; Hodná, Jana (referee) ; Petránek, Vít (advisor)
In the thesis deals with the possibilities of determining the amount of polymer additives FTIR. Are described in detail various polymeric ingredients which are used in concrete mixtures. Then thoroughly discuss the use of recyclable polymer additives polyvinylbutyral (PVB), its production, the primary use, recycling and subsequent use. Next, I will discuss methods for determining the amount of polymer in the substance. In the experimental part were blended with several samples with different percentage for each polymer. Where we conducted appropriate tests and assessments, and individual samples are briefly described, evaluated and compared.
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Assessment of Efficiency of waterborne penetrations for cement substrates
Hlawiczka, Jakub ; Tupý, Michael (referee) ; Petránek, Vít (advisor)
The bachelor's thesis is addressing the issue of using primer coatings for cementitious surfaces. It analyzes reasons of using primer coatings and specific features of application. There are mentioned different species of surface treatment for cementitious surfaces which is followed by methods of surface treatment by variety cementitious screeds, and self-leveling flooring systems. Then it is looked into general characterization of polymer dispersions (especially water-based dispersions) which have typical attribute for primers. In experimental part of thesis are compared ten different waterborne primers. Testing is briefly described and evaluated.
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Development of multilayer polymer floor systems
Tesař, Filip ; Vyhnánek, Miroslav (referee) ; Petránek, Vít (advisor)
Multilayer polymer flooring systems belongs to widespread materials for industrial constructions and also for public constructions. These are mostly two-components polymeric materials based on epoxy. The main aim of my thesis is to make list of requirements for multilayer polymer flooring system and utilization of waste materials as fillers in polymer epoxy. Then use this knowledge for development of multilayer polymer flooring system and propose the new recipe and primary test´s for this material.
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