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Original title in Czech: Fyzikální a stavebně materiálové inženýrstvíFASTAbbreviation: FMIAcad. year: 2016/2017
Programme: Civil Engineering
Length of Study: 4 years
Accredited from: 25.7.2007Accredited until: 31.12.2020
Profile
The PhD study of study branch "Physical and Building Materials Engineering" is focused to a complex scientific training, to methods of individual scientific work and to knowledge development in the field of Building Materials Theory. The fundamental disciplines of the branch are Physics of Materials, Physical Chemistry of Silicates, Theory of Composite Materials, Microstructure of Building Materials, Durability and Rehabilitation of Materials and Structures, further Methods of Measurement and Diagnostics, Modeling of Physical Processes and Building Physics Tasks. From building technical applications especially the Concrete and Building Structures Rehabilitation, Moisture Rehabilitation, Heat-Technical Problems, Reclaiming of Steel and of Wooden Structures. The scientific training in this field is based basic theoretical disciplines of natural sciences and of theoretical scientific disciplines of relevant professional orientation. The graduate of PhD study is trained for asserting himself in development and research activities which enable creative solution of problems, of new progressive building materials development and their use in building structures. The basic character of this PhD education is the close connection both with scientific, research and development activities on the training workplace and in proper technological practice. The continuous active scientific activity is the qualification for possible engagement of graduates as members of the academic staffs at universities.
Guarantor
prof. Ing. Rostislav Drochytka, CSc., MBA, dr. h. c.
Issued topics of Doctoral Study Program
Work focuses on the research and development of new composite. The main component of the new composite is cast basalt. It is characterized by high strength and resistance, and it is therefore suitable for implementation in areas with high demands for chemical and mechanical resistance. This work aims to develop not only a new basalt composites, but also composite materials for use in construction, such as industrial adhesives, repair composites and additive for repair mortar.
Tutor: Drochytka Rostislav, prof. Ing., CSc., MBA, dr. h. c.
Work aims to research and develop a new technology of sand aerated autoclaved concrete production with significant savings of irreplaceable mineral resources and with maximizing of utilization of secondary raw materials. Emphasis will be placed on effective application of waste materials, what is a significant environmental aspect. Mastering of processes treatment of raw materials and the development of the structure of the resulting material will be transferable to other building materials.
Close dependence of the influence of the microfibril angle to stiffness parameters and volume changes of wood are relatively established. However, lately there are new methods (SAXS, difraktion, microscopy), which can relatively accurately determine the microfibril angle (MFA). Likewise nanoindentation can be used for more detailed description of strengths and stiffness parameters of the individual layers of the cell wall. These new methods will be used and properly assessed in the thesis.
Tutor: Vaněrek Jan, doc. Ing., Ph.D.
Attention in glued wood bonds is focused on quantifying the effect of the chemical bond of adhesive with the cell wall. Results of these study are the findings that the effect of the mechanical interlocking does not play such a significant role. Penetration and chemical bond of the adhesive into the cell wall contributes to an increased durability of bonded wood elements. Thesis will contain search methods and experimental, which can be diagnosed penetration of the adhesive into the wall.
The objective of the study consists in the application of acoustic methods, such as the Impact-Echo, acoustic emission and non-linear ultrasonic spectroscopy to a fast non-destructive testing of the condition of light-weight structural concretes. The results of the study will be compared with those obtained by classical methods: concrete compressive and tensile strengths.
Tutor: Chobola Zdeněk, prof. RNDr., CSc.
The aim is to use acoustic methods: Impact-Echo, acoustic emission and nonlinear ultrasonic spectroscopy for rapid non-destructive testing status lightweight polymer-cementitious repair mortars exposed to high temperatures. Will be investigated repair mortars polymer cement with modified. The aim of the modification of the composition will achieve the parameters characteristic of fire-resistant repair mortars. They will be used polymeric fibers polyolefin.
Acoustic tomography is a method that makes possible to localize inhomogeneities in medium under investigation. The objective of the study consists in calculating cavities in materials by means of acoustic tomography methods and determining the resolution power of these methods.
Tutor: Martinek Jan, doc. Mgr., Ph.D.
The goal is to create conditions for the detection of single parameters of building materials using nondestructive testing methods. Preference will be test-rebound hardness testing method, ultrasonic impulse method and resonance method
Tutor: Brožovský Jiří, doc. Ing., CSc.
A study of the behaviour of concretes in the setting and hardening stages by means of available non-destructive testing methods complete with selected mathematical analysis procedures will be carried out in cooperation with an industrial enterprise.
Tutor: Pazdera Luboš, prof. Ing., CSc.
Work will focus on the development and study of new insulators to be used for the manufacture of vacuum insulation panels (VIP) based on secondary and easy renewable raw sources (eg. waste and recycled textiles). The aim will be mapping out behavior of insulators under extremely reduced pressure and the development of new affordable core insulators for VIP. Additionally study of the life of insulators from the perspective of the so-called. "Outgassing" of insulators under extremely low pressure.
Tutor: Zach Jiří, prof. Ing., Ph.D.
Behavior of concrete at high temperatures depends on many factors. The addition of fine fibers is one of the ways to influence the behavior of concrete at high temperatures. The work is devoted to the study of the effect of the application of various types of fine fibers on concrete behaviour at high temperatures.
Tutor: Hela Rudolf, prof. Ing., CSc.
Geopolymers are progressive high performance materials with improved resistence to high temperatures and aggressive agents. The aim of this work will be a development of novel coating materials based on geopolymer matrix which could be utilized as protective barriers against high temperature and aggressive media.
Tutor: Rovnaník Pavel, doc. RNDr., Ph.D.
Work will focus on assessing the impact of the mineralogical composition, fines content and washable materials and aggregates various types of plasticizers and air-entraining agents for concrete frost resistance, especially tensile strength in bending.
In Czech Republic there are historical brick buildings which show strong effects of deterioration due to weathering. For restoration purposes, new replacements materials (bricks) must be chosen. Therefore, it is important to know the relation between production technology, raw material and final microstructure of masonry material.
Tutor: Nevřivová Lenka, Ing., Ph.D.
Processes of thermal flow in building structures can be composition of material layers can be modified by the composition of material layers. The analysis of internal thermal and moisture processes and effective design of a structure is able to affect its energy demand substantially. This issue is also important for showing objects with controlled internal temperature.
Tutor: Šťastník Stanislav, prof. RNDr. Ing., CSc. Ph.D.
A scope of the thesis is to study the influence of various types of water-retaining agents on the fresh properties of plasters and on the physical, mechanical and microstructural properties of hardened plasters, and the long-term properties too. The comparison of the influence of celullose ethers-based water-retaining agents and the unusual types (chitosan derivatives, guaran derivatives) will be the aim of the thesis.
Tutor: Rovnaníková Pavla, prof. RNDr., CSc.
The thesis will focus on studies of influence of micronized lime stone with various fineness and specific surface on the properties of both fresh and hardened cement mortar. The main target is optimization of hardened mortar density, impact on the character of microstructure and possible influence on newly formed hydration products.
The thesis will focus on searching possibilities of optimal use of fluid fly ash for production of certain types of mixtures. The main target is testing possibilities of manufacture of base courses for roads, road stabilization and materials for diaphragm walls. Fluid fly ash should partly replace cement while required physico-mechanical and durability requirements are satisfied.
Sound insulation of brick products is getting more important parameter. The aim of the dissertation is to find a suitable methodology for the determination of sound insulation of brick body and define the influence of individual components commonly used for raw material mixture (clay, lightweighting agents, grogs) to the value of sound insulation.
Tutor: Sokolář Radomír, doc. Ing., Ph.D.
Acoustic (AE) and electromagnetic (EME) emission signal generation accompanies the formation of cracks in electrically non-conducting materials. The effect of the composite materiál composition and charactersitics to the EME and AE characteristics will be studied. The results of this study will be applied to the design of a new diagnostic method.
The goal of the proposed research is to study experimental correlations between morphological irregularities of fracture surfaces and compressive strength of building materials or shear strength of rock joints. Microscopic technique along with 3D software projection will be used in combination with the mechanical assessment of compressive or shear strength.
Tutor: Ficker Tomáš, prof. RNDr., DrSc.
The task is focused on research into the use of waste materials, especially plastics or silicate recycled materials for use in construction elements. It is a contribution to sustainable development in the construction industry. The scope of work is to study the properties of heat-treated sewage recycled materials and optimize their performance in accordance with the requirements of specific building elements.
Resistance and durability of refractory ceramic materials at high temperatures are influenced by their pore structure. The research will focus on the study of the microstructure of thermally insulating material with emphasis on their pore structure. Various analytical methods, suitable for determining apparent, closed porosity and pore size distribution, will be used. The research will search for connection between the character of the pore structure and material thermal-technical properties.
The aim of the work is study of the milling process and technologies on the final properties of the silicate materials.
Tutor: Dvořák Karel, doc. Ing., Ph.D.
The aim is to study and create conditions for the basic parameters of repair materials using non-destructive testing methods. Preference will these test methods-rebond method, ultrasonic pulse method and the resonance method. The work will be focused in two main areas, the study of factors affecting the results of non-destructive methods of measurement and processing relationship between the parameters of non-destructive testing and physico-mechanical properties
Structure of the HSC has a high density. This fact may contribute to the reduction of HSC resistance to high temperatures, especially because of the risk explosive spalling. The work is devoted to the study of the behavior of HSC at high temperature loads and defining the conditions for restrictions explosive spalling.
The work will focus on the causes of the collapse of concrete highway covers the influence of alkali - silica reaction aggregates. The review of the aggregates used in the construction of the motorway D1 and consequently their impact on the life guards. where appropriate, to reduce defects arising in this way.
The work will be focused of the development of innovative types of materials with an anorganic matrix designed for extreme applications. Attention will be focused not only on materials based on Portland cement, but also geopolymers, materials based on alkali-activated materials, etc. The developed materials will be designed for use in extreme conditions, for example highly chemically aggressive environments, extreme temperatures, etc.
Tutor: Dufka Amos, Ing., Ph.D.
Acoustic Emission Method is an unusual technique which describes only active defects or changes into structure arising as a consequence dangerous tension into structure. The method is appropriate to be used in homogenous structures as metal structures when cracks are highly active (generates sound). Its application in civil engineering is not so much used because building structures are inhomogeneous.
The main objective is to make a detailed comparison of the electrical parameters of thermally loaded concrete samples with changes in the structure. The presented methodology (using modern equipment) is based on measuring the electrical impedance characteristics of measured system. Construction material in this system behaves like a dielectric. So we investigate the properties of the dielectric. Indicator properties are frequency dependent physical electrical quantities.
Tutor: Kusák Ivo, doc. Mgr., Ph.D., MBA
Determination of Czech made nanotubes admixture based on SiO2 and Al2O3 on the microstructure and physico-mechanical properties of traditional ceramics (whiteware, sanitary ceramics, ceramic tiles). Influence of dosage and sizes od nanotubes.
It is the development of advanced new special material with high chemical resistance and adhesive abilities. For the development of materials will be used in various kinds of secondary raw materials.
The paper will analyze durability of various formulas of fibre composites with the cement matrix with the full use of recyclate on the basis of mechanical and physical-chemical tests of diffusion and permeation properties. The aim is to define a perspective formula of fibre composite with concrete recyclate resistant to the degradation of cement matrix caused by carbon dioxide and chlorides, i.e. a formula with higher durability.
Tutor: Stehlík Michal, doc. Ing., Ph.D.
The proposed topic is focused on the optimization of the methodolody of estimating the durability of fibre concretes. Pore structure of concrete is of primary importance for its durability. The pore structure of concrete can described by a number of tests but not all of them are a suitable indicator of durability. The expected output are complex conclusions with an impact on the objectivity of using the test of concrete pore structure in relation to the estimate of durability.
The work is focused on monitoring the volume changes of hydration of cementitious composite mixtures with the addition of expansion additives and methods for measuring these changes.
Tutor: Gazdič Dominik, Ing., Ph.D.
Both organic and anorganic fibres from waste raw materials can be used purposefully in construction fibre concretes with extracted aggregate and concrete recyclate. The comparison of physical-mechanical and durability characteristics of fibre concretes with and without loading can contribute to estimating lifetime and ductility behaviour of fibre concretes of different formulations.
Theme is focused on the relations among raw material, production process and binder properties of natural hydraulic limes. The proposed research will deal with limestones of various chemical compositions from the Czech Republic, influence of temperature and time of burning on properties and microstructure of lime. Attention will be paid to hydration process and hydration products and verification of possibilities to use limes taking into account their properties
The aim is to create conditions for the evaluation of properties of silicate binders using dynamic non-destructive methods, ultrasonic pulse method, the resonance method, etc.
The aim is to use acoustic methods: Impact-Echo acoustic emissions and nonlinear ultrasonic spectroscopy to assess the influence of the composition of the concrete structures of the efficiency degradation due to elevated temperatures. They will be tested concretes with different size fractions of aggregates and type of cement. It will also examine the impact of steel reinforcement.