Prohlížení Acta Polytechnica CTU Proceedings. 2022, vol. 33 dle názvu
Zobrazují se záznamy 56-75 z 98
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Lateral load bearing characteristics of light gauge steel and lightweight concrete shear walls
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)In China, there is a new structural system named light gauge steel and lightweight concrete (LSLC) structure, which used lightweight concrete as structural material in composite way with cold-formed steel. Here, the shear ... -
Life cycle assessment of carbon concrete composites: a circular economy path beyond climate mitigation?
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Sustainable construction and materials play an ever-important role to stay within our planetary boundaries. In support, innovative carbon concrete composites (CCC) promise significant raw material savings by integral design. ... -
Life cycle management of concrete structures based on sustainability indicators
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)A concrete structure should be sufficiently planned, designed, executed and maintained to ensure its requirements during the life cycle. However, structures suffering from serious deterioration in structural members and ... -
Limitations of life cycle assessment of green concretes - a state-of-the-art review
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)There have been numerous researches focusing on the alternatives to conventional concrete regarding environmental benefits and trade-offs. For this purpose, nowadays, the Life Cycle Assessment (LCA) is widely used. Until ... -
Load transfer mechanism of concrete screws
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Even though the market and development for concrete screws has been increasingly rising in recent years, the load transfer mechanism of concrete screws has not yet been fully investigated. Therefore, different tests of ... -
Long span post-tensioned box girder bridge in Bratislava
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The paper describes an analysis and detailed design of the 470 m long D4 motorway bridge in the Slovak capital Bratislava. This bridge is a part of 2 932.50 m long D4 motorway crossing of the Danube River and its surrounding ... -
Lower bound analysis for shear assessment of full-scale RC girders subjected to axial tension
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Axial tension force exerted as a result of a temperature change or shrinkage can cause the collapse of RC structural members. Design code provisions and analytical models such as Modified Compression Field Theory (MCFT) ... -
Mechanical and durability performance of cementitious matrices with low cement and different additions
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Nowadays, the decarbonization of the concrete sector is a priority to counteract the global environmental harmful. Knowing that Portland cement is responsible for significant anthropogenic emissions worldwide, the optimization ... -
Methodology for evaluation of the life cycle of buildings with a focus on the private sector
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The paper describes the innovative methodology for the evaluation of the life cycle of buildings, which will be used in construction projects of Skanska, or other construction companies, in selecting the optimal solution ... -
Microstructural characterization of high-performance steel fiber reinforced geopolymer concrete
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Due to growing environmental and economic concerns associated with conventional building materials, research interest gravitates towards the development of novel environmentally friendly materials as alternatives to ... -
Natural fiber-reinforced light-weight cement blocks prepared from waste for sustainable development
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Low density of the light-weight cement blocks offers an advantage in terms of dead load reduction, which is advantageous in structural design-reduction of size and numbers of load-carrying structural components is possible. ... -
Optimizing the acid resistance of concrete with granulated blast-furnace slag
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Concrete structures exposed to high levels of chemical attacks are assigned to exposure class XA3, which recommends separate concrete protection or a special expert solution to ensure durability. Due to the partial ... -
Parapet structure from special shaped TRC blocks
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The paper describes innovative parapet solution based on special shaped blocks made form textile-reinforced concrete - TRC. The blocks are designed for a placement at the parapet of building with a flat roof. The solution ... -
Physical properties of portland cement based concrete exposed at a depth of 3520 m in the Nankai Trough
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Concrete is widely used in large-scale construction of submarine infrastructure because of its high strength, durability, and ease of handling. However, knowledge of its durability in deep seawater is lacking. In the deep ... -
Predicting leakage of the VERCORS mock-up and concrete containment buildings - a digital twin approach
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)EDF operates a nuclear power generation fleet made up of 56 reactors. This fleet contains 24 reactors designed as double-walled concrete containment building. The inner concrete containment vessel has no metallic liner and ... -
Prestressed ultra-high performance concrete (UHPC) beams for reusable structural systems: design and testing
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)With the aim to reduce the environmental footprint of buildings, this paper presents an original structural system concept for two-way slabs in residential and office buildings. The proposed system extends the best practice ... -
Properties of concrete using crushed stone powder with various specific surface areas
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Many countries use crushed stone and crushed sand as the aggregate for concrete. However, a large amount of crushed stone powder is produced as by-products in the manufacturing process. Unless effective utilization of ... -
Quantifying uncertainties in the sustainability evaluation of concrete materials considering regional characteristics in Japan
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)In the evaluation of concrete sustainability, what constitutes "sustainable" to one region may vary from another. This often leads to methodological forms of uncertainties that makes the evaluation process more complex. ... -
Quantitative analysis of the strength generating C-S-H-phase in concrete by IR-spectroscopy
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The C-S-H-phase is the most important strength generating phase in concrete and other cementitious materials. The analysis of C-S-H is therefore an important instrument of innovations in the field of concrete and its ... -
Railway reinforced concrete infrastructure life management and sustainability index
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Infrastructure healthy enhancement for saving resources in operation procedures is one of the most important objectives for owners on their decision support system based on cost management. In this manner, finding the ...