Search Results - "Izabela Hager"

Evaluation of nature and intensity of fire concrete spalling by frequency analysis of sound records by Mróz, Katarzyna, Hager, Izabela

“…The paper presents a new method for identifying the form and intensity of spalling using an analysis of the acoustic signal emitted by concrete. To assess the…”
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Evolution of Mechanical Properties with Time of Fly-Ash-Based Geopolymer Mortars under the Effect of Granulated Ground Blast Furnace Slag Addition by Sitarz, Mateusz, Hager, Izabela, Choińska, Marta

“…Geopolymers are considered to alternatives to Portland cement, providing an opportunity to exploit aluminosilicate wastes or co-products with promising…”
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Rheology and Mechanical Properties of Fly Ash-Based Geopolymer Mortars with Ground Granulated Blast Furnace Slag Addition by Sitarz, Mateusz, Urban, Maciej, Hager, Izabela

“…Geopolymers are less energy-demanding alternatives to Portland cement binders. The subject of geopolymer rheology has not yet been fully explored, and the…”
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Design of Cement–Slag Concrete Composition for 3D Printing by Dvorkin, Leonid, Marchuk, Vitaliy, Hager, Izabela, Maroszek, Marcin

“…The article presents a set of experimental-static models of the properties of fine-grained concretes on a cement–slag binder and quartz sand with the addition…”
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Cement with Fly Ash and Metakaolin Blend—Drive towards a More Sustainable Construction by Dvorkin, Leonid, Zhitkovsky, Vadim, Sitarz, Mateusz, Hager, Izabela

“…This article presents experimental studies that have shown the effectiveness of using a composition of fly ash and metakaolin as an active mineral admixture to…”
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Mechanical Response of Geopolymer Foams to Heating—Managing Coal Gangue in Fire-Resistant Materials Technology by Sitarz, Mateusz, Figiela, Beata, Łach, Michał, Korniejenko, Kinga, Mróz, Katarzyna, Castro-Gomes, João, Hager, Izabela

“…Two geopolymer foams were prepared from a thermally activated coal gangue containing kaolinite. As the foaming agent, aluminium powder and 36% hydrogen…”
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Energy-Efficient Mixtures Suitable for 3D Technologies by Dvorkin, Leonid, Marchuk, Vitaliy, Mróz, Katarzyna, Maroszek, Marcin, Hager, Izabela

“…Compositions of fine-grained concrete mixtures that provide the minimum required strength values in 1 day (7.5 MPa) have been developed. A comparison was made…”
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Concrete propensity to fire spalling: testing and observations by Hager, Izabela, Mróz, Katarzyna, Tracz, Tomasz

“…This article presents results of fire spalling tests on small concrete slabs and studies of material parameters that may increase its occurrence. Experimental…”
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Effect of High Temperature on Mechanical Properties of Geopolymer Mortar by Sitarz, Mateusz, Hager, Izabela, Kochanek, Joanna

“…The advent of modern aluminosilicate binders has resulted in practical uses for fly ash, which belongs to the group of secondary mineral raw materials; this…”
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Equivalent thermal diffusivity of natural and recycled aggregate concrete at temperature up to 350 ⁰C by Hager, Izabela, Mróz, Katarzyna, Tracz, Tomasz, Kočí, Václav, Fiala, Lukáš

“…The paper presents the evolution of equivalent thermal diffusivity with temperature of concretes with natural coarse aggregates and recycled concrete…”
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Recommendation of RILEM TC 256-SPF on the method of testing concrete spalling due to fire: material screening test by Pimienta, Pierre, McNamee, Robert, Hager, Izabela, Mróz, Katarzyna, Boström, Lars, Mohaine, Siyimane, Huang, Shan-Shan, Mindeguia, Jean-Christophe, Robert, Fabienne, Davie, Colin, Felicetti, Roberto, Miah, Md Jihad, Lion, Maxime, Lo Monte, Francesco, Ozawa, Mitsuo, Rickard, Ieuan, Sideris, Kosmas, Alonso, Maria Cruz, Millard, Alain, Jumppanen, Ulla-Maija, Bodnarova, Lenka, Bosnjak, Josipa, Dal Pont, Stefano, Dao, Vinh, Dauti, Dorjan, Dehn, Frank, Hela, Rudolf, Hozjan, Tomaz, Juknat, Michael, Kirnbauer, Johannes, Kolsek, Jerneja, Korzen, Manfred, Lakhani, Hitesh, Maluk, Cristian, Meftah, Fekri, Moreau, Bérénice, Pesavento, Francesco, Pham, Duc Toan, Pistol, Klaus, Correia Rodrigues, Joao Paulo, Roosefid, Mohsen, Schneider, Martin, Sharma, Umesh Kumar, Stelzner, Ludwig, Weber, Benedikt, Weise, Frank

“…The recommendation is based on the co-authors’ work organized by the RILEM TC 256-SPF “Spalling of concrete due to fire: testing and modelling”. The Committee…”
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Recommendation of RILEM TC 256-SPF on fire spalling assessment during standardised fire resistance tests: complementary guidance and requirements by Pimienta, Pierre, McNamee, Robert, Robert, Fabienne, Boström, Lars, Huang, Shan-Shan, Mróz, Katarzyna, Davie, Colin, Mohaine, Siyimane, Alonso, Maria Cruz, Bodnarova, Lenka, Bosnjak, Josipa, Dal Pont, Stefano, Dao, Vinh, Dauti, Dorjan, Dehn, Frank, Felicetti, Roberto, Hager, Izabela, Hela, Rudolf, Hozjan, Tomaz, Juknat, Michael, Jumppanen, Ulla-Maija, Kirnbauer, Johannes, Kolsek, Jerneja, Korzen, Manfred, Lakhani, Hitesh, Lion, Maxime, Lo Monte, Francesco, Maluk, Cristian, Meftah, Fekri, Miah, Md Jihad, Millard, Alain, Mindeguia, Jean-Christophe, Moreau, Bérénice, Msaad, Yahia, Ozawa, Mitsuo, Pesavento, Francesco, Pham, Duc Toan, Pistol, Klaus, Rickard, Ieuan, Rodrigues, Joao Paulo Correia, Roosefid, Mohsen, Schneider, Martin, Sharma, Umesh Kumar, Sideris, Kosmas, Stelzner, Ludwig, Weber, Benedikt, Weise, Frank

“…The recommendation is based on the co-authors’ work organized by the RILEM TC 256-SPF “Spalling of concrete due to fire: testing and modelling”. It aims to…”
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Parametrical study of transient thermal strain of ordinary and high performance concrete by Mindeguia, Jean-Christophe, Hager, Izabela, Pimienta, Pierre, Carré, Hélène, La Borderie, Christian

“…This paper presents the results of an experimental study carried out on several concretes at temperature up to 600°C. It deals with a high temperature…”
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Mechanical behaviour and permeability of geopolymer mortars by Sitarz, Mateusz, Choińska, Marta, Hager, Izabela, Khelidj, Abdelhafid

“…Geopolymers may be considered as an alternative materials to Portland cement ones, providing an opportunity to exploit industrial wastes or co-products with…”
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Assessment of environmental impact of coarse aggregates substitution by crushed pavements in concrete mixtures by Kočí, Jan, Fořt, Jan, Kočí, Václav, Hager, Izabela

“…Inefficient use of end-of-life materials in combination with depletion of primary sources can be understood as a significant factor that motivates to effective…”
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Colour Change in Heated Concrete by Hager, Izabela

“…This paper presents an analysis of colour change in concrete under the influence of heat. The colour change observed in concrete is primarily a result of the…”
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The immobilisation of heavy metals from sewage sludge ash in geopolymer mortars by Sitarz, Mateusz, Zdeb, Tomasz, Castro Gomes, João, Grünhäuser Soares, Erick, Hager, Izabela

“…Sewage sludge is a semi-solid waste material created as a result of the sewage treatment of industrial or municipal wastewater. Because the laws and…”
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Basic Physical, Mechanical, Thermal and Hygric Properties of Concrete with Coarse Aggregates Fabricated from Recycled Concrete Pavements by Fiala, Lukáš, Doleželová, Magdaléna, Kočí, Václav, Lin, Wei-Ting, Hager, Izabela

“…Concrete production unfavourably affects the environment due to high energy demands of cement production and consumption of limited natural resources…”
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Contribution to the development of colorimetry as a method for the assessment of fire-damaged concrete by Carré, Hélène, Hager, Izabela, Perlot, Céline

“…This study presents a new method of using colorimetry for post-fire assessment of concrete. Changes in concrete colour with temperature are related to chemical…”
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Fly-ash based geopolymer mortar for high-temperature application – Effect of slag addition by Hager, Izabela, Sitarz, Mateusz, Mróz, Katarzyna

“…Geopolymers are used as a Portland cement alternative in some applications. The motivation for using geopolymers is their capacity of the by-products and waste…”
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