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Naslov:Alkali activation of metallurgical slags : reactivity, chemical behavior, and environmental assessment
Avtorji:ID Lancellotti, Isabella (Avtor)
ID Piccolo, Federica (Avtor)
ID Traven, Katja (Avtor)
ID Češnovar, Mark (Avtor)
ID Ducman, Vilma (Avtor)
ID Leonelli, Cristina (Avtor)
Datoteke:URL URL - Izvorni URL, za dostop obiščite https://www.mdpi.com/1996-1944/14/3/639
Opis: Open access
 
.pdf PDF - Predstavitvena datoteka, prenos (4,49 MB)
MD5: B079326BF7836ED56FB673476DE83E5C
 
Jezik:Angleški jezik
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:Logo ZAG - Zavod za gradbeništvo Slovenije
Povzetek:Alkali-activated materials (AAMs) represent a promising alternative to conventional building materials and ceramics. Being produced in large amounts as aluminosilicate-rich secondary products, such as slags, they can be utilized for the formulation of AAMs. Slags are partially crystalline metallurgical residues produced during the high temperature separation of metallic and non-metallic materials in the steelmaking processes. In the present study, the electric arc furnace carbon or stainless steel slag (EAF) and secondary metallurgical slag such as ladle furnace basic slag (LS) were used as precursors in an alkali-activation process. EAF slag, with its amorphous fraction of about 56%, presented higher contents of soluble Si and Al species with respect to ladle slag R (35%). However, both are suitable to produce AAM. The leaching behavior shows that all the release values are below the regulation limit. All the bivalent ions (Ba, Cd, Cu, Ni, Pb, and Zn) are well immobilized in a geopolymeric matrix, while amphoteric elements, such as As and Cr, show a slight increase of release with respect to the corresponding slag in alkaline and aqueous environments. In particular, for Sb and As of AAM, release still remains below the regulation limits, while Mo presents an increase of leaching values that slightly exceeds the limit for landfill non-dangerous waste.
Ključne besede:slag, aluminosilicate materials, chemical reactivity, cold consolidation, alkali activation, leaching test, open access
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:30.01.2021
Založnik:Molecular Diversity Preservation International
Leto izida:2021
Št. strani:str. 1-19
Številčenje:Vol. 14, iss. 3
PID:20.500.12556/DiRROS-16244 Novo okno
UDK:620.1/2
ISSN pri članku:1996-1944
DOI:10.3390/ma14030639 Novo okno
COBISS.SI-ID:49408515 Novo okno
Avtorske pravice:© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Opomba:Nasl. z nasl. zaslona; Opis vira z dne 14. 1. 2021; Št. članka 639;
Datum objave v DiRROS:22.05.2023
Število ogledov:853
Število prenosov:429
Metapodatki:XML DC-XML DC-RDF
:
LANCELLOTTI, Isabella, PICCOLO, Federica, TRAVEN, Katja, ČEŠNOVAR, Mark, DUCMAN, Vilma in LEONELLI, Cristina, 2021, Alkali activation of metallurgical slags : reactivity, chemical behavior, and environmental assessment. Materials [na spletu]. 2021. Vol. 14, no. 3, p. 1–19. [Dostopano 1 april 2025]. DOI 10.3390/ma14030639. Pridobljeno s: https://dirros.openscience.si/IzpisGradiva.php?lang=slv&id=16244
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Gradivo je del revije

Naslov:Materials
Skrajšan naslov:Materials
Založnik:MDPI
ISSN:1996-1944
COBISS.SI-ID:33588485 Novo okno

Gradivo je financirano iz projekta

Financer:EC - European Commission
Program financ.:ERA-MIN 2 Raw materials for sustainable development and the circular economy
Številka projekta:ERA-MIN-2017_94/FLOW
Naslov:Lightweight alkali-activated composite foams based on secondary raw materials
Akronim:FLOW
Financer:Drugi - Drug financer ali več financerjev
Številka projekta:C 3330-18-252010
Naslov:Raziskovalci-2.0-ZAG-52903

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:žlindra, alumosilikatni materiali, kemijska reaktivnost, hladna utrditev, alkalijska aktivacija, testiranje izlužkov, odprti dostop


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