National Repository of Grey Literature 14 records found  1 - 10next  jump to record: Search took 0.01 seconds. 
Effect of active ingredients, and their dosing to CHRL 28,90 days of age
Kodešová, Monika ; Holák, Michal (referee) ; Hela, Rudolf (advisor)
Subject of this work is to design a batch of concrete with additives, which are to replace the cement of various doses so as to not adversely affect the properties of fresh and hardened concrete and simultaneously withstand the environment XF.
Building Construction Project for Industrial and Administrative Building ATX
Šrámek, Jiří ; Liška, Pavel (referee) ; Nečasová, Barbora (advisor)
The subject of this master’s thesis is a solution of chosen parts of building construction project. The project solves industrial hall that contains productions and administrative space. This thesis includes technological regulations for substructure, study of performing the main technological stages, design of using machines, checking and testing plans. Other phrases parts are time schedules, budget, calculations, design of site equipment including engineering report and report for performing access road. Starting materials, which were used for this thesis, were engineering report also including working drawings.
Study of impacts affecting the lifetime of cement concrete coverings in the Czech Republic
Láznička, Josef ; Ťažký, Tomáš (referee) ; Hela, Rudolf (advisor)
This thesis deals with the study of cement – concrete coverings. The aim of the thesis is a summary of current knowledge of these constructions. The experimental part of this paper deals with the design of concrete for the lower layer of cement – concrete cover. Emphasis is placed on the elimination of microcracks and to increase the lifetime of these construction.
Research in the field of construction elements and design of concrete pavements
Grošek, Jiří ; Birnbaumová, Marie (referee) ; Vébr,, Ludvík (referee) ; Varaus, Michal (advisor)
The presented dissertation is focused on research in the field of dowels and design of concrete pavements using the finite element method. The theory part describes the history and the currently used techniques in the world and in the Czech Republic. The practice part of the dissertation contains a description of design methods, diagnostics of concrete pavements by using FWD and a description of laboratory tests on beams with inserted dowels. The results of measurements and modelling are verified on real operating conditions on testing fields. Based on the dissertation results, the amendment of the Czech standard ČSN 73 6123-1 regarding the position of dowels were proposed and approved. In addition, methodological guidelines of the Ministry of Transport regarding the measurements of the dowels and tie bars position and diagnostic by FWD was approved. The conclusion of the work summarizes and emphasizes the results of the dissertation.
Unbound and bound mixtures from recycled concrete of highway D1
Mikulíková, Petra ; Mondschein,, Petr (referee) ; Stehlík, Dušan (advisor)
The work is divided into two parts. The first part deals with the description of unbound and bound base layers and their comparison. Furthermore is presented the description of the recycled concrete, its properties, production, improvement and issues. International experiences with recycled concrete technology are described as well. The practical part is focused on laboratory testing of concrete recycled material taken from the highway D1. The aim of this part is to determine whether the concrete can be recycled back into unbound or bound base layers and concrete casing.
Extension of life time of concrete pavements
Renzová, Martina ; Kachyňa, Zdeněk (referee) ; Varaus, Michal (advisor)
The aim of the theoretical part of this Master´s thesis is to make a research of possible ways in repairing PCC pavements without anchoring transverse joints. The pratical part is focused on the design of PCC pavements segmentations in experimental sections and evaluation measurement by testing muted impact.
Study of the effect of concrete composition on the abrasion surfaces
Hoško, Marek ; Reiterman, Pavel (referee) ; Hela, Rudolf (advisor)
This work deals with summarizing knowledge on issues related to the loss of skid resistance properties of roads, which is caused by surface abrasion. Then indicates the relation between types of aggregates and paste volume to abrasion, impact compressive strength, aeration rate and different types of finishes. In the practical part were designed recipe CB II with different types of coarse aggregate. Samples were tested for abrasion method according to Böhm according to CSN 73 1324 Determination of abrasion of concrete.
Study of impacts affecting the lifetime of cement concrete coverings in the Czech Republic
Láznička, Josef ; Ťažký, Tomáš (referee) ; Hela, Rudolf (advisor)
This thesis deals with the study of cement – concrete coverings. The aim of the thesis is a summary of current knowledge of these constructions. The experimental part of this paper deals with the design of concrete for the lower layer of cement – concrete cover. Emphasis is placed on the elimination of microcracks and to increase the lifetime of these construction.
Building Construction Project for Industrial and Administrative Building ATX
Šrámek, Jiří ; Liška, Pavel (referee) ; Nečasová, Barbora (advisor)
The subject of this master’s thesis is a solution of chosen parts of building construction project. The project solves industrial hall that contains productions and administrative space. This thesis includes technological regulations for substructure, study of performing the main technological stages, design of using machines, checking and testing plans. Other phrases parts are time schedules, budget, calculations, design of site equipment including engineering report and report for performing access road. Starting materials, which were used for this thesis, were engineering report also including working drawings.
Research in the field of construction elements and design of concrete pavements
Grošek, Jiří ; Birnbaumová, Marie (referee) ; Vébr,, Ludvík (referee) ; Varaus, Michal (advisor)
The presented dissertation is focused on research in the field of dowels and design of concrete pavements using the finite element method. The theory part describes the history and the currently used techniques in the world and in the Czech Republic. The practice part of the dissertation contains a description of design methods, diagnostics of concrete pavements by using FWD and a description of laboratory tests on beams with inserted dowels. The results of measurements and modelling are verified on real operating conditions on testing fields. Based on the dissertation results, the amendment of the Czech standard ČSN 73 6123-1 regarding the position of dowels were proposed and approved. In addition, methodological guidelines of the Ministry of Transport regarding the measurements of the dowels and tie bars position and diagnostic by FWD was approved. The conclusion of the work summarizes and emphasizes the results of the dissertation.

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