20.500.12556/DiRROS-15841 Microstructural characterization of alkali-activated composites of lightweight aggregates (LWAs) embedded in alkali-activated foam (AAF) matrices 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 reaction or mechanical interlocking occurs during production. However, the interfaces between LWAs and an AAF have not been studied in detail so far. Chemical reactions are possible if the LWA contains an amorphous phase which can react with the alkaline activators of the AAF, increase the bonding, and thus, also their mechanical strengths. These, in turn, allow for an improvement of the thermal insulation properties as they enable a further density reduction by incorporating low density aggregates. This work features a first-detailed analyses of the interfaces between the LWAs’ expanded polystyrene, perlite, expanded clay and expanded glass, and the alkali-activated foam matrices produced using industrial slags and fly ash. Some are additionally reinforced by fibers. The goal of these materials is to replace cement by alkali-activated waste as it significantly lowers the environmental impact of the produced building components. alkali activated materials/geopolymers light weight aggregates SEM alkalijsko aktivirani materiali/geopolimeri lahki agregat SEM true false true Molecular Diversity Preservation International Angleški jezik Slovenski jezik © 2022 by the authors. Licensee MDPI, Basel, Switzerland Neznano 2022-11-24 08:15:37 2023-06-20 06:09:32 2023-06-21 03:52:09 0000-00-00 00:00:00 2022 0 0 Nasl. z nasl. zaslona; Opis vira z dne 25. 4. 2022; Št. članka: 3879; str. 1-14 iss. 9 Vol. 14 Apr. 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2022-04-23 620.1/.2 2073-4360 10.3390/polym14091729 105856515 https://www.mdpi.com/2073-4360/14/9/1729 1 6a11ba2c-6bbf-11ed-a69a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=20949 RAZ_Traven_Katja_2022.pdf RAZ_Traven_Katja_2022.pdf 1 1B01971608E6EFAA9CFB75CDEE6EE741 3b627026bdd80e62076fe1d5dd6649beda4292c8df39f3442b230b007a3bed29 74c45167-971b-11ed-b359-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=21388 Zavod za gradbeništvo Slovenije 0 0 0