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The development of grouting for additional sealing of embankment dams
Michalčíková, Magdaléna ; Klablena,, Petr (referee) ; Drochytka, Rostislav (advisor)
Seal of sand or gravel by chemical injection is known and used for a long time. Chemical grouting are however expensive and sometimes the use of cement does not lead to desire effects. So it is trying to find new materials and methodologies injection arrangement works. To achieve savings of chemical products are added to a mixture clay and cement. Clay-cement grouting mix are used not only in order that they are better quality, but also because in this way proposed mixtures have a tendency to penetrate better into incoherent sediments that need additional sealant of chemical injection. For further possible reductions of economic terms the mixture is trying to replace the classic clay. As a suitable substitute for classic clay is to a certain extent the use of secondary raw materials. Above all it is fly ash. As a part of my thesis I deal with the appropriateness use of these materials and examining their properties in the mixture. It was found that by using fly ash were improving consistency of the fresh mixture, reducing the amount of water-cement ratio and reduce shrinkage of the mixture. On the other hand, by using fly ash has been increasing decantation, permeability atc. In the next stage of my work was examined the influence of the quality of cement, lime and liquefaction in the mixture. The aim of thesis is to propose the optimal injection mixture for additional sealing earth dams.
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Slovene National Theatre in Ljubljana
Machara, František ; Němec, Josef (referee) ; Ruller, Ivan (advisor)
The city block, which we use for a creating our architectural rendering of new Natoinal theatre building is situated on one othe hystorical city axis in the centre of Slovenian capital city Ljubljana. This axis was create in time of old romanian historical setlement. and pases during our cityblock. this is one of the most important moment , I was inspirated with...
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Study of the development of short-term strength of concrete at low temperatures
Ďurnek, Jan ; Louda,, Pavel (referee) ; Hela, Rudolf (advisor)
The work deals with the study of the development of compressive strength of concrete at low temperatures. The content of the theoretical part is summarizing of all available information about cements, especially about the properties of cements used for the production of concrete in the Czech Republic. The next chapters deal with plasticizing and super plasticizing additives, which accelerate the hardening and setting of the concrete mixture. A certain part is reserved for the accelerators themselves. The practical part deals with the influence of individual temperatures on the maturation of the concrete mixture, especially on the compressive strength of concrete after 1,2, 7 and 28 days. The conclusion of the work contains an evaluation of the measured results.
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The work of Jan Polack and its impact in the Bohemian painting around 1500
NAUŠ, Stanislav
In comparison with the art production at Nurnberg or at the cities of the so-called Danube School at the end of 15th century stands the simultaneous painting at Munich in the background. Therefore is sometimes forgotten, that there, in this period, a painter Jan Polack with his workshop was active. To his important customers/patrons belonged the dukes Sigmund and Albrecht of Wittelsbach and the Bavarian monasteries (Weihenstephan near Feising), for which he made few altars or portraits. A most of these altars were after that removed from the original sacral areas and today they are presented in the Bavarian National-museum at Munich or in other galleries. Only a few altars, for example three altars for the chapel in Blutenburg near Munich, have been staying on the original place in this small chapel. These Master thesis would like to compare his most representative pictures in the context with the others paintings, which were created in the middle or at the end of the 15th century in Bavaria (circle of Hans Pleydenwurff, Wolfgang Katzheimer etc.). This comparison can help to find the sources of the Polacks artistic expression. A special attention should be devoted his cooperation with Mair of Landshut, because few pictures of Polacks altar from the church of St. Peter in Munich have just been to Mair inscribed. It is also important to point to same compositional connections between the altar-pictures of Jan Polack and the graphics (Master E. S., Martin Schongauer) One highly-valued contribution of this thesis could be a capitol about the possible inspiration of the Polacks artistic expression for the artists, who came from Bohemia and who have been working here for a long times, but who could gain their training in the Bavaria (Munich). At the literature (Jaroslav Pešina) was one opinion expressed, that an altar in a church in Chudenitz concludes the formal features, which reveal a connection to the art at Munich in the middle of the 15th century. However, other authors (Roman Lavička) think that the painted boards of an original altar of Doudleby were inspired by Polacks artistic expression, although any concrete related features were not in the literature mentioned. It is appropriate too, point to the several compositional connections between the pictures of Jan Polack und a so-called Master of an altar from Litoměřice. This anonymous Bohemian painter, who is knowed only according to his most important commission, would be supposed to study in the Bavaria (an artistic circle of Rueland Frueauf at Passau) at the end of the 15th century. It is possible, that he could visit Munich und he could be inspired by the Polacks paintings.
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The development of grouting for additional sealing of embankment dams
Michalčíková, Magdaléna ; Klablena,, Petr (referee) ; Drochytka, Rostislav (advisor)
Seal of sand or gravel by chemical injection is known and used for a long time. Chemical grouting are however expensive and sometimes the use of cement does not lead to desire effects. So it is trying to find new materials and methodologies injection arrangement works. To achieve savings of chemical products are added to a mixture clay and cement. Clay-cement grouting mix are used not only in order that they are better quality, but also because in this way proposed mixtures have a tendency to penetrate better into incoherent sediments that need additional sealant of chemical injection. For further possible reductions of economic terms the mixture is trying to replace the classic clay. As a suitable substitute for classic clay is to a certain extent the use of secondary raw materials. Above all it is fly ash. As a part of my thesis I deal with the appropriateness use of these materials and examining their properties in the mixture. It was found that by using fly ash were improving consistency of the fresh mixture, reducing the amount of water-cement ratio and reduce shrinkage of the mixture. On the other hand, by using fly ash has been increasing decantation, permeability atc. In the next stage of my work was examined the influence of the quality of cement, lime and liquefaction in the mixture. The aim of thesis is to propose the optimal injection mixture for additional sealing earth dams.
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Slovene National Theatre in Ljubljana
Machara, František ; Němec, Josef (referee) ; Ruller, Ivan (advisor)
The city block, which we use for a creating our architectural rendering of new Natoinal theatre building is situated on one othe hystorical city axis in the centre of Slovenian capital city Ljubljana. This axis was create in time of old romanian historical setlement. and pases during our cityblock. this is one of the most important moment , I was inspirated with...
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