Profile of the branch:|
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.
Key learning outcomes:|
Occupational profiles of graduates with examples:|
Issued topics of Doctoral Study Program:|
- Application of acoustic methods to assessing the condition of degraded building materials
The objective of the study consists in the application of acoustic methods, such as the Acoustic Emission, Impact-Echo and Non-linear Ultrasonic Spectroscopy to a fast non-destructive testing of the condition of degraded building materials. The results of the study will be compared with those obtained by classical methods: compressive and tensile strengths (simple tension, transversal tension, flexural tensile strength), static and dynamic modulus of elasticity.
- Application of acoustic methods to assessing the the status parameter lightweight polymer-cementitious repair mortars exposed to high temperatures
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.
- Development and research of behavior of insulating materials based on alternative raw sources under extremely reduced pressure
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.
- Effect of burning cycle on the microstructure of refractories of two-component system Al2O3-SiO2.
The aim of this PhD thesis is to study the influence of temperature and heat on the resulting microstructure of material. The density of the material, pore structure, mineralogical composition and internal structure of the material will be analyzed on the available high-end devices, which requires mastering the work with these devices as well.
- Functional coatings based on geopolymers
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.
- Improving the durability of cement fibre composite with the full use of recyclate
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.
- Optimization of the composition of building objects based on the minimization of energy demand coming from the thermal system modelling
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.
- Prediction of the durability of fibre composites with cement matrix from the results of mechanical, physical and physical-chemical tests
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.
- Study of composite building materials subjected to mechanical loading by means of electromagnetic and acoustic emission methods
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.
- Study of fracture surfaces of building materials and rock grounds
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.
- Study of heat processed recycled materials and optimisation of properties for their use in building industry
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.
- Study of physical-mechanical and durability characteristics of construction fibre concretes with use of alternating waste fibres
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.
- Study of the hydration process of anhydrite binders
The thesis is focused on the monitoring of mineralogical composition and technological properties of anhydrite binders with the addition of hydration activators.
- The Effect of Production Technology on the Properties and microstructure of Forsterite
Forsterite is refractory material with high coefficient of thermal conductivity. Forsterite is not produced in Czech Republic. The effect of different technology of forsterite production (raw materials mixture, technology of shaping, sol-gel) on the physico-mechanical properties and microstructure.
- The monitoring behavior of building materials under mechanical loading by acoustic emission method
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.
- Use of alternating electric field for the assessment of the physical properties of building materials
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.