Katja Traven (Avtor), Wolfgang Wisniewski (Avtor), Mark Češnovar (Avtor), Vilma Ducman (Avtor)

Povzetek

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.

Ključne besede

alkalijsko aktivirani materiali/geopolimeri;lahki agregat;SEM;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: ZAG - Zavod za gradbeništvo Slovenije
Založnik: Molecular Diversity Preservation International
UDK: 620.1/.2
COBISS: 105856515 Povezava se bo odprla v novem oknu
ISSN: 2073-4360
Št. ogledov: 16
Št. prenosov: 7
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: alkali activated materials/geopolymers;light weight aggregates;SEM;
Komentar vira: Nasl. z nasl. zaslona; Opis vira z dne 25. 4. 2022; Št. članka: 3879;
Strani: str. 1-14
Letnik: ǂVol. ǂ14
Zvezek: ǂiss. ǂ9
Čas izdaje: Apr. 2022
DOI: 10.3390/polym14091729
ID: 19336982