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Naslov:Particle size manipulation as an influential parameter in the development of mechanical properties in electric arc furnace slag-based AAM
Avtorji:ID Traven, Katja (Avtor)
ID Češnovar, Mark (Avtor)
ID Ducman, Vilma (Avtor)
Datoteke:URL URL - Izvorni URL, za dostop obiščite https://www.sciencedirect.com/science/article/pii/S0272884219321212?via%3Dihub
 
.pdf PDF - Predstavitvena datoteka, prenos (2,26 MB)
MD5: FA9526B63E2D57E5FE7D38AAD05C9211
 
Jezik:Angleški jezik
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:Logo ZAG - Zavod za gradbeništvo Slovenije
Povzetek:Alkali-activated materials (AAM) have gained recognition as a promising alternative to technical ceramic and building materials owing to the lower energy demands for production and the potential to use slag as a precursor. In the present study, five sets of slag-based AAM pastes were prepared with different particle sizes (fractions d < 63, 63 < d < 90, and 90 < d < 125 μm in different mass ratios) under the same curing regime and using a fixed precursor to activator (water) mass ratio. Precursors and the hardened AAM are evaluated using BET, XRD, XRF, SEM, FTIR, reactivity of precursors by leaching, and mercury intrusion porosimetry (MIP). Chemical analysis indicated only marginal differences among the different-sized fractions of input materials, whereas the BET surface area and reactivity among the precursors differed significantly-smaller particles had the largest surface area, and thus, higher reactivity. The mineralogical differences between the precursors and hardened AAM were negligible. The results revealed that compressive strength was significantly influenced by particle size, i.e., a threefold increase in strength when the particle size was halved. Microstructural evaluation using MIP confirmed that the porosity was the lowest in AAM with the smallest particle size. The low porosity and high reactivity of the fine fractions led to the highest compressive strength, confirming that manipulation of particle size can significantly influence the mechanical properties.
Ključne besede:alkalijsko aktivirani materiali, žlindra iz obločne peči, mehanska aktivacija, mehanske lastnosti, poroznost, alkali-activated materials (AAM), electric arc furnace steel slag, mechanical activation, mechanical properties, porosity
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:26.07.2019
Založnik:Ceramurgica s.p.a.
Leto izida:2019
Št. strani:str. 22632-22641
Številčenje:Vol. 45, iss. 17
PID:20.500.12556/DiRROS-17304 Novo okno
UDK:620.1/.2
ISSN pri članku:0272-8842
DOI:10.1016/j.ceramint.2019.07.296 Novo okno
COBISS.SI-ID:2480999 Novo okno
Avtorske pravice:© 2019 The Authors. Published by Elsevier Ltd.
Opomba:E-članek objavljen: 1 December 2019;
Datum objave v DiRROS:22.11.2023
Število ogledov:1080
Število prenosov:384
Metapodatki:XML DC-XML DC-RDF
:
TRAVEN, Katja, ČEŠNOVAR, Mark in DUCMAN, Vilma, 2019, Particle size manipulation as an influential parameter in the development of mechanical properties in electric arc furnace slag-based AAM. Ceramics international [na spletu]. 2019. Vol. 45, no. 17, p. 22632–22641. [Dostopano 19 marec 2025]. DOI 10.1016/j.ceramint.2019.07.296. Pridobljeno s: https://dirros.openscience.si/IzpisGradiva.php?lang=slv&id=17304
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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:EC - European Commission
Program financ.:H2020
Številka projekta:730238
Naslov:Implement a European-wide coordination of research and innovation programs on raw materials to strengthen the industry competitiveness and the shift to a circular economy
Akronim:ERA-MIN 2
Financer:Drugi - Drug financer ali več financerjev
Številka projekta:ERA-MIN-2017_94/FLOW
Naslov:Lightweight alkali activated composite foams based on secondary raw materials
Akronim:FLOW

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:12.08.2019
Vezano na:Text and Data Mining valid from 2019-12-01 Version of Record valid from 2019-08-12

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