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Naslov:The influence of calcium sulfate content on the hydration of belite-calcium sulfoaluminate cements with different clinker phase compositions
Avtorji:ID Mrak, Maruša (Avtor)
ID Winnefeld, Frank (Avtor)
ID Lothenbach, Barbara (Avtor)
ID Dolenec, Sabina (Avtor)
Datoteke:.pdf PDF - Predstavitvena datoteka, prenos (1,74 MB)
MD5: 559FD40D758525FFB3E785B1A3C264E5
 
.docx DOCX - Priloga, prenos (751,20 KB)
MD5: AA5FFA8F05FA92E3446E90E1F4D0C891
 
URL URL - Izvorni URL, za dostop obiščite http://dx.doi.org/10.1617/s11527-021-01811-w
 
Jezik:Angleški jezik
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:Logo ZAG - Zavod za gradbeništvo Slovenije
Povzetek:The influence of different amounts of gypsum on the hydration of a belite-rich and a yeʼelimite-rich belite-calcium sulfoaluminate clinker (BCSA) was investigated. The hydration kinetics, phase assemblages and compressive strength development of cements prepared using yeʼelimite/ calcium sulfate molar ratios of 1, 1.5 and 2 were studied. Besides ettringite and monosulfate, aluminium hydroxide, strätlingite, C-S-H, iron-containing siliceous hydrogarnet and hydrotalcite were present as hydration products. Increasing the amount of gypsum increased the ratio of ettringite to monosulfate formed in the cement paste, lowered the amount of pore solution, delayed the dissolution of belite and ferrite, decreased the formation of strätlingite and, in the case of the yeʼelimite-rich BCSA, led to an increase in compressive strength. Increased amounts of belite in the clinker led to the formation of higher quantities of C-S-H, at the expense of straätlingite and a lower compressive strength, as belite has a lower degree of reaction than yeʼelimite and due to the formation of more C-S-H and stratlingite compared to the more space-filling ettringite. The thermodynamic model established for BCSA cement hydration agrees well with the experimental data. Compressive strength directly correlated with bound water from thermogravimetric analyses and inversely correlated with the porosity calculated from thermodynamic modelling.
Ključne besede:belite-calcium sulfoaluminate cement, gypsum, hydration, thermodynamic modelling
Status publikacije:Objavljeno
Verzija publikacije:Objavljena publikacija
Datum objave:05.11.2021
Založnik:Springer Netherlands
Leto izida:2021
Št. strani:str. 1-17
Številčenje:Vol. 54
PID:20.500.12556/DiRROS-16159 Novo okno
UDK:620.1/.2
ISSN pri članku:1871-6873
DOI:10.1617/s11527-021-01811-w Novo okno
COBISS.SI-ID:84002051 Novo okno
Avtorske pravice:© The Author(s) 2021
Opomba:Article no.: 212;
Datum objave v DiRROS:28.07.2023
Število ogledov:773
Število prenosov:639
Metapodatki:XML DC-XML DC-RDF
:
MRAK, Maruša, WINNEFELD, Frank, LOTHENBACH, Barbara in DOLENEC, Sabina, 2021, The influence of calcium sulfate content on the hydration of belite-calcium sulfoaluminate cements with different clinker phase compositions. Materials and structures [na spletu]. 2021. Vol. 54, p. 1–17. [Dostopano 16 marec 2025]. DOI 10.1617/s11527-021-01811-w. Pridobljeno s: https://dirros.openscience.si/IzpisGradiva.php?lang=slv&id=16159
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Gradivo je del revije

Naslov:Materials and structures
Založnik:Springer Netherlands
ISSN:1871-6873
COBISS.SI-ID:517631513 Novo okno

Gradivo je financirano iz projekta

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:1000-18-1502
Naslov:Young researcher programm

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:05.11.2021
Vezano na:Text and Data Mining valid from 2021-11-05 Version of Record valid from 2021-11-05

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:belitno-kalcijevo sulfoaluminatni cement, sadra, hidratacija, termodinamsko modeliranje


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