20.500.12556/DiRROS-17626 Fibre reinforced alkali-activated rock wool Mineral wool, i.e. rock and glass wool, represents considerable challenge after its functional-time runs out due to its small density leading to large volume consumption during transport and in landfills where it usually ends. Because rock wool is mineralogically and chemically a promising precursor material for alkali-activation, it was milled from few centimetres-decimeters long fibres to micron-sized fibres. Since fibres in alkali-activated materials generally show an increase in mechanical strength, especially the bending strength, 1 m% of additional fibres (basalt, cellulose (2 types), glass, polypropylene, polyvinyl alcohol and steel fibres) was used in the alkali mixture, that was curred at 40 °C for 3 days. Time dependence of the mechanical strengths of alkali- activated materials with and without additional fibres was followed. Maximal increase of compressive and bending strength after 28 days was reached with polypropylene fibres, i.e. it was 20% and 30% higher than compressive and bending strength of alkali- activated material without additional fibres respectively. secondary raw material alkali activated material foaming homogenization mechanical strength sekundarne surovine alkalijsko aktivirani materiali penjenje homogenizacija tlačna trdnost true false true University of Maribor, University Press, Faculty of Chemistry and Chemical Engineering Angleški jezik Slovenski jezik © Authors & Potrč, Bogataj, Kravanja, Novak Pintarič, 2022 Neznano 2023-12-21 08:56:33 2023-12-21 08:56:34 2023-12-24 03:36:13 0000-00-00 00:00:00 2022 0 0 Nasl. z nasl. zaslona; Opis vira z dne 9. 6. 2022; Str. 78-93 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2022-05-30 620.1/.2 10.18690/um.fkkt.2.2022 111147267 109396739 RAZ_Pavlin_Majda_2022.pdf RAZ_Pavlin_Majda_2022.pdf 1 2E18BAC785C4452AECB7571312841DE7 7fa0504afd87b6481fb978066b499f3563ad8bda09791970d7db1b39cfb78336 3facf38e-9fda-11ee-9ccb-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=23955 https://press.um.si/index.php/ump/catalog/book/677 0 36d92e6d-9fda-11ee-9ccb-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=23954 Zavod za gradbeništvo Slovenije 0 0 0