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Št. zadetkov: 6
Characterizing the interfacial zones of fly ash based alkali activated adhesives to various substrates
Wolfgang Wisniewski, Vilma Ducman
Izvirni znanstveni članek
Oznake: lepilo;elektrofiltrski pepel;ITZ;odtržna trdnost;odprti dostop;adhisive;fly ash;pull of test;open ccess;
Alkali Activated Materials (AAMs) are important potential substitutes for cement in many materials. The AAMs presented here are based on industrial ground granulated blast furnace slag (GGBFS) and fly ash (FA). They are tested for their suitability as adhesives for joining concrete, ceramic tiles, a ...
Leto: 2022 Vir: Zavod za gradbeništvo Slovenije (ZAG)
Microstructural characterization of alkali-activated composites of lightweight aggregates (LWAs) embedded in alkali-activated foam (AAF) matrices
Katja Traven, Wolfgang Wisniewski, Mark Češnovar, Vilma Ducman
Izvirni znanstveni članek
Oznake: alkalijsko aktivirani materiali/geopolimeri;lahki agregat;SEM;
Alkali-activated composites of lightweight aggregates (LWAs, with beneficial insulating properties) and alkali-activated foams (AAFs, higher added value products due to their production from waste materials at well below 100 ◦C) allow for the expectation of superior properties if a chemical bonding ...
Leto: 2022 Vir: Zavod za gradbeništvo Slovenije (ZAG)
Increasing the amorphous content in river sediments intended for supplementary cementitious materials using flame synthesis
Wolfgang Wisniewski, Jozef Kraxner, Lea Žibret, Dušan Galusek, Vilma Ducman
Izvirni znanstveni članek
Oznake: sedimenti;SCM;zasteklitev;lastnosti;sediments;vitrification;properties;
Dredged river sediments are currently a waste material which is mainly landfilled or reintegrated into rivers. They can also be used as a renewable resource for the construction sector. Pre- treatments at high temperatures allow their use for more advanced applications such as supple- mentary cement ...
Leto: 2024 Vir: Zavod za gradbeništvo Slovenije (ZAG)
Y2O3-Al2O3 microsphere crystallization analyzed by electron backscatter diffraction (EBSD)
Wolfgang Wisniewski, Anna Prnová, Peter Švančárek, Milan Parchovianský, Dušan Galusek
Izvirni znanstveni članek
Oznake: Y2O3-Al2O3;kristalizacija mikrokrogel;plamenska sinteza;EBSD;microsphere crystallization;flame synthesis;
The crystallization of glass microspheres in the Y2O3–Al2O3-system produced from precursor powders of four different nominal compositions via flame synthesis is analyzed in detail by electron microscopy with a focus on electron backscatter diffraction (EBSD). Growth models are formulated for individ ...
Leto: 2020 Vir: Nacionalni inštitut za biologijo (NIB)
Clay rich river sediments calcined into precursors for alkali activated materials
Lea Žibret, Wolfgang Wisniewski, Barbara Horvat, Mojca Božič, Boštjan Gregorc, Vilma Ducman
Izvirni znanstveni članek
Oznake: sedimenti;alkalijsko aktivirani materiali;lastnosti;sediments;alkali activated materials;properties;
Alkali activated materials (AAMs), a potential alternative to cement-based products or ceramics, can incorporate large amounts of currently landfilled aluminosilicate rich materials such as calcined clay-rich river sediments collected at hydropower plant dams. Untreated fresh sediment and untreated ...
Leto: 2023 Vir: Zavod za gradbeništvo Slovenije (ZAG)
Recovery of phosphorus and metals from the ash of sewage sludge, municipal solid waste, or wood biomass
Sara Tominc, Vilma Ducman, Wolfgang Wisniewski, Terttu Luukkonen, Kirkelund Gunvor M., Ottosen Lisbeth M.
Pregledni znanstveni članek
Oznake: kritične surovine;ekstrakcija;pepel blata iz čistilnih naprav;pepel iz sežiga trdnih komunalnih odpadkov;pepel iz lesne biomase;critical raw materials;extraction;sewage sludge ash;municipal solid waste incineration ash;wood biomass ash;
This review provides an overview of methods to extract valuable resources from the ash fractions of sewage sludge, municipal solid waste, and wood biomass combustion. The resources addressed here include critical raw materials, such as phosphorus, base and precious metals, and rare earth elements fo ...
Leto: 2023 Vir: Zavod za gradbeništvo Slovenije (ZAG)
Št. zadetkov: 6
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