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Development of repair mortar with resistance to high temperatures
Šottl, Jiří ; Gross, Tomáš (referee) ; Bydžovský, Jiří (advisor)
Currently, increasing reinforced concrete structures and concrete structures that require repair in the form of remediation. The master’s thesis deals with the development of repair mortars with resistance to high temperatures, which would allow the re-profiling of the fire damaged parts of the structures and restore its function. Development of repair mortars is based on a literature review of articles dealing with research materials resistant to high temperatures.
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Development of a New Repair Mortar Using Secondary Raw Materials
Figala, Petr
This paper deals with the research of a new repair mortar modified with secondary raw materials. The aim of the work is to develop a material characterized by chemical resistance suitable for the rehabilitation of sewer concrete structures. Resistance to aggressive sulphate solution and to attack by sulfuric acid was chosen as the key parameters for the choose of a final mixture. Chemical resistance was tested by simulating the exposure environment in laboratory conditions, according to the methodology of DIN 19573. The obtained results show that by suitable modification of the reference mortar it is possible to maintain the values of physical-mechanical characteristics and improve the chemical resistance of test samples. The final mixture will be further tested in field conditions.
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Development of repair mortar with resistance to high temperatures
Šottl, Jiří ; Gross, Tomáš (referee) ; Bydžovský, Jiří (advisor)
Currently, increasing reinforced concrete structures and concrete structures that require repair in the form of remediation. The master’s thesis deals with the development of repair mortars with resistance to high temperatures, which would allow the re-profiling of the fire damaged parts of the structures and restore its function. Development of repair mortars is based on a literature review of articles dealing with research materials resistant to high temperatures.
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Repair formulations for fine-grained stone arte-facts
Tišlová, R. ; Novotná, Adéla
Stone restoration practice continuously deals with the problem of the selection of suitable repair materials. In establishing the requirements that guide their specification, the fundamental aim should always be to achieve the best compatibility between the substrate and the repair. When dealing with the restoration of stone, several aspects must be taken into consideration: not only the way in which compatibility influences the durability and structural and environmental resistance of the repair, but also the properties of the stone substrate itself must be considered. Compatibility is a highly complex problem but when considering the above mentioned aspects, functional compatibility – the compliance between physical and mechanical characteristics of the materials – is the most critical in prolonging the sustainability of the repair.
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