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Naslov:The preparation and characterization of low-temperature foams based on the alkali activation of waste stone wool
Avtorji:ID Pavlin, Majda (Avtor)
ID Horvat, Barbara (Avtor)
ID Češnovar, Mark (Avtor)
ID Ducman, Vilma (Avtor)
Datoteke:URL URL - Izvorni URL, za dostop obiščite https://www.sciencedirect.com/science/article/pii/S0272884222007830?via%3Dihub
 
.pdf PDF - Predstavitvena datoteka, prenos (9,47 MB)
MD5: FCC605EC914C240D862447F38F39D072
 
Jezik:Angleški jezik
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:Logo ZAG - Zavod za gradbeništvo Slovenije
Povzetek:Waste mineral wool represents a huge amount of construction and demolition waste that is still not adequately returned into the value chain but needs to be landfilled. In the present study, waste stone wool (SW) was evaluated for the preparation of alkali-activated foams. For this purpose SW was milled and sieved below 63 μm, then the activator (sodium silicate) and different amounts of foaming agent (hydrogen peroxide, H2O2), varying between 1 wt% and 3 wt%, were added to the slurry and cured in moulds at an elevated temperature (70 ◦ C) for three days. In this way, foamed, highly porous materials were obtained whose density and mechanical properties were influenced by the amount of foaming agent used. The densities obtained ranged between 1.4 and 0.5 g/cm3, with corresponding mechanical properties of between 12.6 and 1.5 MPa and total porosities in the range 37.8–78.6%, respectively. In the most porous samples with the total porosity of 78.6%, a thermal conductivity of 0.092 W/(m∙K) was confirmed. The study confirmed the suitability of waste mineral wool (in our case SW) as a precursor for alkali-activated foams with potential use in the construction sector or other industrial applications.
Ključne besede:alkali activation, waste mineral wool, mechanical strength, open access, alkalijska aktivacija, odpadna volna, SEM, XRF, XRD, mehanska trdnost, odprti dostop
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:11.03.2022
Založnik:Ceramurgica s.p.a.
Leto izida:2022
Št. strani:str. 1-38
PID:20.500.12556/DiRROS-15830 Novo okno
UDK:620.1/.2
ISSN pri članku:0272-8842
DOI:10.1016/j.ceramint.2022.03.037 Novo okno
COBISS.SI-ID:100944387 Novo okno
Avtorske pravice:© 2022 The Author(s). Published by Elsevier Ltd
Datum objave v DiRROS:19.06.2023
Število ogledov:891
Število prenosov:541
Metapodatki:XML DC-XML DC-RDF
:
PAVLIN, Majda, HORVAT, Barbara, ČEŠNOVAR, Mark in DUCMAN, Vilma, 2022, The preparation and characterization of low-temperature foams based on the alkali activation of waste stone wool. Ceramics international [na spletu]. 2022. P. 1–38. [Dostopano 19 marec 2025]. DOI 10.1016/j.ceramint.2022.03.037. Pridobljeno s: https://dirros.openscience.si/IzpisGradiva.php?lang=slv&id=15830
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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:821000
Naslov:Mineral wool waste back to loop with advanced sorting, pre-treatment, and alkali activation
Akronim:WOOL2LOOP

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.
Začetek licenciranja:11.03.2022
Vezano na:Text and Data Mining valid from 2022-06-01 Version of Record valid from 2022-03-11

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