|
|
Corrosion resistance of surface treatments by polysiloxane paint systems.
Kulhanová, Veronika ; Molliková, Eva (referee) ; Tulka, Jaromír (advisor)
Influence of atmospheric and chemical environments on metal products leads usually to the corrosion damage. This master´s thesis deals with way to protect metals from corrosion, especially by polysiloxane coatings in combination with coatings containing zinc. Corrosion resistance of created coatings systems is tested by laboratory accelerated tests in corrosion chamber, where the natural atmospheric conditions are simulated. Chemical resistance in selected environments is verified by drop test. Quality characteristics coatings – thickness, adhesion to the underlying material, hardness and stability of the coating colour and gloss are evaluated too.
|
|
|
Design of new materials for rehabilitation of utility networks using CIPP method
Jakubíková, Karolína ; Hodná, Jana (referee) ; Drochytka, Rostislav (advisor)
The thesis deals with the design of new materials for the rehabilitation of utility networks using sing the method of trenchless technology (CIPP). It is a special polymer resin containing filler which saturates a suitable fabric in the form of sleeves. In this thesis, the attention is focused mainly to the use of secondary raw materials in the form of fillers and the improvement of mechanical properties of CIPP, including reducing the financial demands of this remediation material. The use of by-products as the fillers is in this thesis investigated both from the point of view of the processability of the material and from the point of view of the resulting mechanical properties.
|
|
|
Development of new grouting materials for reverse grouting of sewers
Dolák, Martin ; Dohnálek,, Pavel (referee) ; Drochytka, Rostislav (advisor)
ABSTRACT This thesis deals with the development of silicate based reverse grouts for the purpose of rehabilitation of sewers. The work also examines the possibility of substitution of basic input raw materials with secondary raw materials, meaning replacements of both filler components and binder components. As secondary raw materials, we refer to wastes from the production process which, after the necessary treatment, are used in another production. The development and experimental verification of the functionality of the developed grout was focused mainly on the use of secondary raw materials as much as possible, while maintaining or even improving its physical and mechanical properties. Based on the results of the work, it can be stated that with a 100% replacement rate of filler components in combination with 20% replacement rate of binder components, it is possible to largely maintain the properties of the material, or even optimize them. The results of the thesis also point to the possibility of reducing the economic and environmental demands of production of building materials.
|
|
|
Development of new grouting materials for reverse grouting of sewers
Dolák, Martin ; Dohnálek,, Pavel (referee) ; Drochytka, Rostislav (advisor)
ABSTRACT This thesis deals with the development of silicate based reverse grouts for the purpose of rehabilitation of sewers. The work also examines the possibility of substitution of basic input raw materials with secondary raw materials, meaning replacements of both filler components and binder components. As secondary raw materials, we refer to wastes from the production process which, after the necessary treatment, are used in another production. The development and experimental verification of the functionality of the developed grout was focused mainly on the use of secondary raw materials as much as possible, while maintaining or even improving its physical and mechanical properties. Based on the results of the work, it can be stated that with a 100% replacement rate of filler components in combination with 20% replacement rate of binder components, it is possible to largely maintain the properties of the material, or even optimize them. The results of the thesis also point to the possibility of reducing the economic and environmental demands of production of building materials.
|
|
|
Design of new materials for rehabilitation of utility networks using CIPP method
Jakubíková, Karolína ; Hodná, Jana (referee) ; Drochytka, Rostislav (advisor)
The thesis deals with the design of new materials for the rehabilitation of utility networks using sing the method of trenchless technology (CIPP). It is a special polymer resin containing filler which saturates a suitable fabric in the form of sleeves. In this thesis, the attention is focused mainly to the use of secondary raw materials in the form of fillers and the improvement of mechanical properties of CIPP, including reducing the financial demands of this remediation material. The use of by-products as the fillers is in this thesis investigated both from the point of view of the processability of the material and from the point of view of the resulting mechanical properties.
|
|
|
Corrosion resistance of surface treatments by polysiloxane paint systems.
Kulhanová, Veronika ; Molliková, Eva (referee) ; Tulka, Jaromír (advisor)
Influence of atmospheric and chemical environments on metal products leads usually to the corrosion damage. This master´s thesis deals with way to protect metals from corrosion, especially by polysiloxane coatings in combination with coatings containing zinc. Corrosion resistance of created coatings systems is tested by laboratory accelerated tests in corrosion chamber, where the natural atmospheric conditions are simulated. Chemical resistance in selected environments is verified by drop test. Quality characteristics coatings – thickness, adhesion to the underlying material, hardness and stability of the coating colour and gloss are evaluated too.
|
guest ::
