Acta Polytechnica CTU Proceedings. 2025 ( vol. 52-53)
Kolekce v této komunitě
Poslední příspěvky
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Advanced silicate composites – a contribution to sustainable construction
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2025)In view of the increasing number of natural and man-made disasters and the increasing economic and social problems, it is necessary to adapt the existing principles and methods of structural design, the corresponding ... -
Flexural behavior of timber-high-performance concrete experimental slabs
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2025)In general, one of the possible future paths of the building construction industry is the development of robotization and prefabrication of individual building components. Presented article continues the development of ... -
Bonding of timber and high-performance concrete
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2025)Timber-concrete composite systems have emerged as a promising building technique, leveraging the strengths of both materials to improve load capacity, stiffness, and overall performance. In the presented study, high-performance ... -
Comparative study of different types of waterproofing screeds with a focus on radon permeability after the freeze-thaw exposure
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2025)This study aims to verify and independently compare the functionality of waterproofing screeds against the effect of radon with the influence of freezing cycles. The effect of freezing cycles on the sealing ability against ... -
Effect of variability of material properties on resistance of existing post-tensioned concrete bridge – case study
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2025)The study deals with the sensitivity analysis in determining the load-bearing capacity of existing bridges made of post-tensioned precast girders. Focusing on a specific road bridge, the effect of variations of important ... -
Micro-scale properties of cement pastes exposed to gamma radiation
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2025)The extension of the lifetime of nuclear power plants is a critical issue today, raising concerns about the microscale mechanisms and mechanical changes in the individual phases of concrete that contribute to its macroscopic ... -
Monitoring the reactivity of pozzolans by thermogravimetric method
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2025)This work focuses on comparing the effect of ten different types of pozzolans on the strength of lime pastes in relation to their pozzolanic activities as determined by the Chapelle test and monitoring the reactivity of ... -
Design of bond strength testing method of concrete layers for creating a material model
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2025)The need to determine the bond strength of concrete layers in structural modeling is quite frequent and often encounters a lack of relevant experimental data due to the large number of variables which affect the bond ... -
Automation of small sample positioning for mechanical testing in hot cells
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2025)The main objective of this paper is to propose an improvement and automation of the current mechanical testing procedure of concrete and rock samples in hot cells, i.e. in laboratories designed for radioactive sample ... -
Rheology properties of metakaolin activated by lithium water glass
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2025)Alkali-activated materials play an important role in the current industry, because they offer alternative way towards low carbon technologies. However, their crucial utilization still lays in the field of composites resistant ... -
Effect of hydrogen embrittlement on mechanical properties of non-stressed prestressing steel
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2025)The aim of this paper is to elucidate the effect of hydrogen on the structure of commonly used prestressed concrete steel strand (PC strand) of concrete bridges and other structures in the non-stressed state to determine ... -
Carbonizable calcium silicates by CO2 atmosphere in a pressure chamber
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2025)The paper deals with the possibility of different calcium silicate minerals namely wollastonite (CS), belite (C2S), and rankinite (C3S2) on their curing in CO2 atmosphere. It describes the laboratory preparation of these ... -
Hybrid reinforcement of TRC from flax and AR glass
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2025)This article focusses on the possible use of hybrid reinforcement from inorganic and organic materials in a thin concrete plates, such as Textile-reinforced concrete. Organic materials, such as flax, jute, or sisal, have ... -
Parametric study of a reinforced concrete footbridge strengthened by a layer of UHPFRC
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2025)This paper deals with the presentation of a parametric study of the strengthening of a reinforced concrete footbridge with a layer of reinforced UHPFRC on its upper surface. In order to increase its load carrying capacity, ... -
Solid-state synthesis of pure belite polymorphs
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2025)The solid-state synthesis of pure belite polymorphs is still not described in detail. The study of this issue is important for understanding modification transformations, especially between beta and gamma modifications. ... -
Effective mechanical properties identification of the concrete from the historical bridge structure
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2025)One of the first and most important tasks in a complex and precise assessment of the current condition and load-bearing capacity of existing structures is a determination of the physical and mechanical parameters of the ... -
Analysis and optimisation of reinforcing materials for wood adhesives
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2025)Adhesives are very important in the field of glued timber elements. In recent years, more and more attention has been paid to innovations in the field of adhesives for wood materials. Not only in terms of mechanical ... -
Production of steel-concrete composite columns for blast tests
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2025)The resistance of structures to explosive impacts is a highly relevant issue in modern engineering. During an explosion, structures are subjected to extreme dynamic loads, which necessitate advanced materials and reinforcement ... -
Modification of properties of fresh mixture for 3D printing using cement-based mortar
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2025)Portland cement is traditional binding material which is applicable for various modern technologies in these days - the 3D printing is one of them. The development of 3D printers using cement-based materials for the ... -
Rehabilitation of cement concrete pavement structures at Bratislava airport
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2025)The pavements on the movement areas of the airport are a specific group of pavements, due to their characteristics, different traffic loads and the time constraints for their repairs and maintenance. Increased requirements ...
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