Prohlížení Acta Polytechnica CTU Proceedings. 2024 ( vol. 46-47) dle názvu
Zobrazují se záznamy 9-28 z 36
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Development and causes of migration in lagging regions in the years 2017–2021: a case study of the Slovak Republic
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)Migration represents a process where people leave their homes for various reasons. The aim of the article is to evaluate the level and development of migration in Slovakia and to identify its causes in the Gemer region, ... -
Development of hydration temperatures on cement pastes
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)This article deals with the possible combination of high temperature fly ash with fluidised bed fly ash. The main objective of the experiment is to verify the effect of the combination of these two energy by-products on ... -
Dowel bars – reinforcing elements of cement concrete pavements
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)Our aim is to analyze the function of reinforcement elements (dowel bars) in cement concrete pavement to highlight the influence of these elements on the service life of the pavement as a whole and to find possible ... -
Effect of preparation process on purity of tricalcium aluminate
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)In the realm of cement production, traditional fuels are steadily giving way to alternative sources. While this shift yields economic and ecological advantages, it introduces notable technological challenges. Specifically, ... -
General quality of urban greenery as a city indicator in Brazil in comparison with central Europe
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)The evidence for climate change and its associated consequences, such as severe droughts, floods, and storms, exposed the need to investigate the ways that countries can cope with them, especially Brazil, which is a ... -
Investigating MIDR through AI: a case study of the city of Most in Czech Republic
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)Urban planning, which is inherently multifaceted, requires the development of innovative tools to navigate its complexities. This study introduces a pioneering approach that presents an AI-driven framework tailored for ... -
Measurement of asphalt concrete base thickness using ultrasonic pulse echo
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)This paper deals with the description and use of one of the up-to-date NDT method, the ultrasonic pulse echo, to determine the thickness of an asphalt concrete model. In the article, the authors explain the principle of ... -
Mechanical properties of cement pastes containing plasma-treated silicon-based materials
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)The study delves into the impact of waste silicon-based materials on the mechanical characteristics of the resulting cement pastes. The investigation uses Portland cement CEM I 42.5R in conjunction with silicon-based waste ... -
Methodology for measuring the potential of a tourism destination in relation to sustainable local tourism product development
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)Tourism is very strongly associated with the potential of the area, including the society, in which the tourism activities take place. This potential is often fragmented and it depends on the skills of local actors, ... -
Monitoring degradation in alkaline-activated slag materials
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)This paper deals with determining degradation changes in alkaline-activated slag-based building materials. It describes methods for determining dynamic elastic moduli obtained by acoustic non-destructive methods, including ... -
Municipal waste management performance: a focus on Slovakia and its LAU-1 districts
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)In this paper, we analyse the changes made to the basic EU directive on waste and assess its impact on the waste legislation of EU members. We then examine the Slovak waste strategies/programs that have implemented the EU ... -
Parameters of back filling material prepared from mine tailing, fly ash, and mine water
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)The article investigates the influence of mine tailing, fly ash, and mine water on strength parameters as mine paste filling material performing the strength tests on different recipes of mortar mixes with individual types ... -
Possibilities of reinforcement of subtle translucent concrete panel
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)Textile-reinforced concrete not only has many advantages that lead to less consumption of primary resources, but also enables the creation of thin and subtle elements. The high performance of such elements allows us to ... -
Possibilities of replacing natural sand in concrete
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)This study explores the potential of using fine recycled aggregate (FRA) to replace natural sand in concrete production. The research was divided into two parts. In the first part, natural aggregate’s complete fine fraction ... -
Preparation of light fraction silicate filer after the mining for the base layers’ road construction
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)The article main objective was eco-innovation in the field of utilization and creation of a complex waste-free technology for the separation of components during ore extraction with subsequent processing, recovery of mine ... -
Processing and recycling of aggregate residues after ore extraction for stabilization of mined areas
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)The article focuses on the treatment and recycling of aggregate. It also addresses the issue of treatments effects on mine tailings, fly ash and acid mine water on the measured parameters of concrete with load-bearing and ... -
Production of concrete pavements using mixed cements
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)Currently, great importance is attached to the reduction of emissions in industrial production, especially in the production of cement, when it is indicated that during production 1 ton of cement produces approximately 0.6 ... -
Production of concrete pavements using mixed cements
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)This paper discusses the possibility of assessing the k-value of power plant fly ash using durability. Compressive strengths, activity indices, pressure water seepage depth and carbonation depth were determined for cement ... -
Reflections on the crisis management of selected municipal and city authorities during the coronavirus pandemic
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)The outbreak of the COVID-19 pandemic in the spring of 2020 had a significant impact on the operation of all aspects of society, including public administration institutions. This article aims to examine the most challenging ... -
“Smart cities” and their vulnerability
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2024)In most discussions, “smart cities” are perceived as a largely positive phenomenon that improves the safety but above all the comfort of its inhabitants. The present paper constructively and critically analyses the approach ...