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Naslov:Evaluation of locally available amorphous waste materials as a source for alternative alkali activators
Avtorji:ID Koenig, Katja (Avtor)
ID Traven, Katja (Avtor)
ID Pavlin, Majda (Avtor)
ID Ducman, Vilma (Avtor)
Datoteke:URL URL - Izvorni URL, za dostop obiščite https://www.sciencedirect.com/science/article/pii/S0272884220330996?via%3Dihub
 
.pdf PDF - Predstavitvena datoteka, prenos (6,02 MB)
MD5: B99C88D750B5AB32B3090701AD13068A
 
Jezik:Angleški jezik
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:Logo ZAG - Zavod za gradbeništvo Slovenije
Povzetek:The production of alkali-activated materials with excellent mechanical performance requires the use of waterglass, which has a significant carbon footprint. Such materials can have a lower carbon footprint if we replace water glass with alternative activators sourced from waste. In this study, we assessed the suitability of locally available amorphous waste materials (stone wool, glass wool, bottle glass and cathode-ray tube glass) as a source for the preparation of alternative alkali activators. We quantified the amount of silicon and aluminium dissolved in the activator solutions via inductively coupled plasma-optical emission spectrometry. The alternative activators were then used to produce alkali-activated fly ash and slag. The compressive strength values of alkali-activated fly ash specimens upon the addition of NaOH, water glass and the most promising alternative activator were 38.98 MPa, 31.34 MPa and 40.37 MPa, respectively. The compressive strength of slag specimens activated with alternative activators with the highest concentration of dissolved silicon (21 g/L) was, however, 70% higher than the compressive strength of slag specimens activated with only 10 M sodium hydroxide. The compressive strength of slag specimens with the addition of the most promising alternative activator was significantly lower (3.5 MPa) than the compressive strength of those that had been activated by commercial water glass (34.3 MPa).
Ključne besede:alkalijsko aktivirani materiali, alternativni aktivatorji, lastnosti, alkali activated materials/geopolimers, alternative activators, properties
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:09.10.2020
Založnik:Ceramurgica s.p.a.
Leto izida:2021
Št. strani:str. 4864-4873
Številčenje:Vol. 47, iss. 4
PID:20.500.12556/DiRROS-16811 Novo okno
UDK:620.1/.2
ISSN pri članku:0272-8842
DOI:10.1016/j.ceramint.2020.10.059 Novo okno
COBISS.SI-ID:32752643 Novo okno
Avtorske pravice:© 2020 The Authors. Published by Elsevier Ltd.
Opomba:E-članek objavljen: 15 February 2021;
Datum objave v DiRROS:22.08.2023
Število ogledov:721
Število prenosov:389
Metapodatki:XML DC-XML DC-RDF
:
KOENIG, Katja, TRAVEN, Katja, PAVLIN, Majda in DUCMAN, Vilma, 2021, Evaluation of locally available amorphous waste materials as a source for alternative alkali activators. Ceramics international [na spletu]. 2021. Vol. 47, no. 4, p. 4864–4873. [Dostopano 16 marec 2025]. DOI 10.1016/j.ceramint.2020.10.059. Pridobljeno s: https://dirros.openscience.si/IzpisGradiva.php?lang=slv&id=16811
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Gradivo je del revije

Naslov:Ceramics international
Skrajšan naslov:Ceram. int.
Založnik:Ceramurgica s.p.a.
ISSN:0272-8842
COBISS.SI-ID:5822215 Novo okno

Gradivo je financirano iz projekta

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:J2-9197
Naslov:Sinteza in karakterizacija alkalijsko aktiviranih pen na osnovi odpadnih materialov

Licence

Licenca:CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
Opis:Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.
Začetek licenciranja:15.10.2020
Vezano na:Text and Data Mining valid from 2021-02-01 Version of Record valid from 2020-10-15

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