|
|
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.
|
|
|
Studying the properties of fiber cement composites
Cederová, Kristýna ; Hoško, Marek (referee) ; Bodnárová, Lenka (advisor)
This diploma thesis deals with fiber-cement composites. Input materials are investigated for the production of fiber cement, are examined, the production and parameters of the pulp were monitored. Further, Hatschek's production technology and requirements for corrugated fiber-cement roofing are described. In the practical part the individual input materials and parameters of ground pulp were verified. The problem with production of samples and difference in the fineness of pulp milling in fiber cement products has been solved.
|
|
|
Analýza vlastností vláknocementových kompozitních materiálů
Hoško, Marek ; Bydžovský, Jiří (referee) ; Reitermann, Pavel (referee) ; Pavlík,, Zbyšek (referee) ; Bodnárová, Lenka (advisor)
Thesis theme was the issue of sludge waste generated during the production of fiber cement and its reverse implementation into the matrix. The theoretical part of the work has deal with description of Hatschek's fiber cement production technology, technological water system, sludge management and its separation from the system. Experimental part was divided into 5 stages. The first stage was focused on monitoring the qualitative parameters of the sludge waste, which were monitored using selected qualitative tests. In the next stage, was compared the mineralogical and chemical composition of the sludge waste samples with the standard slurry used for production. In the third stage was proposed an alternative method of producing laboratory samples, on which the influence of the addition of sludge on the strength characteristics was verified. In the next step were summarized the results from the previous stages and recipes with waste sludge for production on the production machine were proposed. The fourth stage dealt with the sludge processing itself, its collection and dosing. During the wet production process were evaluated a number of important indicators of the efficiency of production of fiber cement products. Among the most important of them belong percolation and retention evaluation. In the last stage were compared the produced samples with sludge with the standard ones. The samples were subjected to a series of physical-mechanical and durability tests: longitudinal and transverse strength, density, watertightness, impact test, frost resistance, soak-dry, hidden defect method, dimensional stability and warping. The result of the thesis is a comprehensive study on the properties and implementation of sludge waste into fiber cement.
|
|
|
Studying the properties of fiber cement composites
Cederová, Kristýna ; Hoško, Marek (referee) ; Bodnárová, Lenka (advisor)
This diploma thesis deals with fiber-cement composites. Input materials are investigated for the production of fiber cement, are examined, the production and parameters of the pulp were monitored. Further, Hatschek's production technology and requirements for corrugated fiber-cement roofing are described. In the practical part the individual input materials and parameters of ground pulp were verified. The problem with production of samples and difference in the fineness of pulp milling in fiber cement products has been solved.
|
|
|
Study of properties of fibre-cement composites
Hoško, Marek ; Gromeš, Vít (referee) ; Bodnárová, Lenka (advisor)
The work deals with the summarization of knowledge concerning issues of fiber cement. There are characterized feedstock, production technologies, properties and surface finish corrugated fiber covering. Furthermore, the paper describes the normative requirements for Corrugated Sheets, affecting the quality of manufactured roofing. In the practical part of the thesis were sampled corrugated sheets, which have been investigated possible influences affecting the quality of the surface finish. Was also solved the issue of insufficient adhesion of acrylic paint on selected plates in the factory CEMBRIT a.s. in Šumperk.
|
|
|
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.
|
guest ::
