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Naslov:Use of steel slag for the synthesis of belite-sulfoaluminate clinker
Avtorji:ID Žibret, Lea (Avtor)
ID Cvetković, Martina (Avtor)
ID Mrak, Maruša (Avtor)
ID Loncnar, Mojca (Avtor)
ID Ipavec, Andrej (Avtor)
ID Dolenec, Sabina (Avtor)
Datoteke:.pdf PDF - Predstavitvena datoteka, prenos (18,89 MB)
MD5: F26B238E8BF0778AB8D98A949CB2541F
Opis: Odprti dostop
 
.pdf PDF - Predstavitvena datoteka, prenos (3,82 MB)
MD5: 3C4BC280B88A9A72D9E8D6927AA9782F
 
Jezik:Angleški jezik
Tipologija:1.08 - Objavljeni znanstveni prispevek na konferenci
Organizacija:Logo ZAG - Zavod za gradbeništvo Slovenije
Povzetek:Belite-sulfoaluminate (BCSA) cements are low-carbon mineral binders, which require low energy consumption and allow the incorporation of various secondary raw materials in the clinker raw meal. In this study two types of unprocessed steel slags, coming from stainless steel production, were incorporated in the BCSA clinkers. The clinker phase composition, clinker reactivity, and the compressive strength of the cement were studied to evaluate the possible use of the slag in BCSA clinkers. The cement clinkers were synthesized by using natural raw materials, white titanogypsum, mill scale, as well as two different steel slags: (i) EAF S slag, which is a by-product of melting the recycled steel scrap in an electric arc furnace, and (ii) la dle slag as a by-product of the processes of secondary metallurgy, in various quantities. Raw mixtures with two different targeted phase compositions varying in belite, calcium sulfoaluminate and ferrite phases were sintered at 1250 °C. Clinker phases were determined by Rietveld quantitative phase analysis, while their distribution, morphology and incorporation of foreign ions in the phases were studied by SEM/EDS analysis. The clinker reactivity was determined by isothermal calorimetry. BCSA cements were prepared by adding titanogypsum. The compressive strength of the cement pastes was determined after 7 days of hydration. The presence of a predicted major clinker phases was confirmed by Rietveld analysis, however periclase was also detected. Microscopy revealed subhedral grains of belite and euhedral grains of calcium sulfoaluminate phases, while ferrite occurred as an interstitial phase. The results showed differences in the microstructure and reactivity of the clinker and cement, which can be attributed to varying amounts of ettringite due to different slag types
Ključne besede:belite-sulfoaluminate cement, cement clinker, steel slags, clinker microstructure, cement reactivity
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:01.01.2020
Založnik:Slovenian National Building and Civil Engineering Institute (ZAG)
Leto izida:2020
Št. strani:Str. 352-359
PID:20.500.12556/DiRROS-17907 Novo okno
UDK:620.1/.2
COBISS.SI-ID:54699523 Novo okno
Avtorske pravice:© 2020 Slovenian National Building and Civil Engineering Institute
Opomba:Nasl. z nasl. zaslona; Opis vira z dne 11. 3. 2021;
Datum objave v DiRROS:19.01.2024
Število ogledov:951
Število prenosov:358
Metapodatki:XML DC-XML DC-RDF
:
ŽIBRET, Lea, CVETKOVIĆ, Martina, MRAK, Maruša, LONCNAR, Mojca, IPAVEC, Andrej in DOLENEC, Sabina, 2020, Use of steel slag for the synthesis of belite-sulfoaluminate clinker. V : Construction materials for a sustainable future [na spletu]. Objavljeni znanstveni prispevek na konferenci. Ljubljana : Slovenian National Building and Civil Engineering Institute (ZAG). 2020. p. 352–359. [Dostopano 17 marec 2025]. Pridobljeno s: https://dirros.openscience.si/IzpisGradiva.php?lang=slv&id=17907
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Gradivo je del monografije

Naslov:Construction materials for a sustainable future : proceedings of the 2nd International Conference CoMS 2020/21
Uredniki:Aljoša Šajna, Andraž Legat, Sabina Jordan, Petra Horvat, Ema Kemperle, Sabina Dolenec, Metka Ljubešek, Matej Michelizza
Kraj izida:Ljubljana
Založnik:Slovenian National Building and Civil Engineering Institute (ZAG)
Leto izida:2020
ISBN:978-961-94071-8-9
COBISS.SI-ID:44042499 Novo okno

Gradivo je financirano iz projekta

Financer:Drugi - Drug financer ali več financerjev
Številka projekta:C3330-17-529035
Naslov:Raziskovalci-2.0-ZAG-529035

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.

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:belitno sulfoaluminatni cement, cementni klinker, jeklarske žlindre, mikrostruktura klinkerja, reaktivnost cementa


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