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Št. zadetkov: 3
Sustainable alkali-activated slag binders based on alternative activators sourced from mineral wool and glass waste
Majda Pavlin, Katja Koenig, Jakob Koenig, Uroš Javornik, Vilma Ducman
Izvirni znanstveni članek
Oznake: alkalijsko aktivirani materiali/geopolimeri;alternativni aktivatorji;NMR;izlužki;alkali activated materials/geopolymers;alternative activators;leaching;
In the present study, four different locally available waste glass materials (bottle glass-BG, glass wool-GW, stone wool-SW and cathode-ray tube glass-CRTG) were treated with hot concentrated potassium hydroxide (KOH) in order to obtain alternative alkali activators (AAAs). We evaluated the suitabil ...
Leto: 2022 Vir: Zavod za gradbeništvo Slovenije (ZAG)
Thermal insulation and flammability of composite waste polyurethane foam encapsulated in geopolymer for sustainable building envelope
Barbara Horvat, Nataša Knez, Uroš Hribar, Jakob Koenig, Branka Mušič
Izvirni znanstveni članek
Oznake: odpadna poliuretanska pena;polimerni zaviralci ognja;alkalijsko aktivirani materiali;metakaolin;mikrovalovno obsevanje;vpliv toplote, ognja;tlačna trdnost;waste polyurethane foam;polymeric flame retardants;alkali activated material;microwave irradiation;thermal-fire behaviour;mechanical strength;
Polyurethane foam (PUR) is a lightweight, thermally insulating, widely used, and highly flammable material that has after its use an adverse effect on the environment, i.e., PUR disposal is considered hazardous. Its flammability can be mitigated using various fire retardants, but they do not change ...
Leto: 2024 Vir: Zavod za gradbeništvo Slovenije (ZAG)
Characterization and Mechanical Properties of Sintered Clay Minerals
Sara Tominc, Vilma Ducman, Jakob Koenig, Srečo D. Škapin, Matjaž Spreitzer
Objavljeni znanstveni prispevek na konferenci
Oznake: konvencionalno sintranje;hladno sintranje;minerali glin;karakterizacija;mehanske lastnosti;conventional sintering;cold sintering;clay minerals;characterization;mechanical properties;
The need to reduce energy consumption and the carbon footprint generated by firing ceramics has stimulated research to develop sintering processes carried out at lower temperatures(ideally not above 300 °C) and high pressures (up to 600 MPa), the so-called cold sintering process (CSP) (Grasso et al. ...
Leto: 2024 Vir: Zavod za gradbeništvo Slovenije (ZAG)
Št. zadetkov: 3
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