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Effect of Sintering Temperature and Calcium amount on Compressive Strength of Brushite-Metakaolin Polymer Materials

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2022
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Authors
Đukić, Dunja
Šuljagić, Marija
Anđelković, Ljubica
Pavlović, Vera
Bučevac, Dušan
Vrbica, Boško
Mirković, Miljana
Article (Published version)
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Abstract
The effect of Ca2+ amount and sintering temperature on mechanical properties of geopolymer-brushite (GPB) binders was investigated. Brushite and raw abandoned kaolinite clay thermally transformed into metakaolin were used for GPB synthesis. The complete phase and structural analyses were performed by X-ray powder diffraction, and Fourier transforms infrared spectroscopy (FT-IR). The pore-filling effect as a consequence of Ca2+ ions incorporation into the hybrid geopolymer networks improved the compressive strength. On the other hand, the chosen biscuit sintering at 800 and 900oC caused the phase transformation of brushite into calcium pyrophosphate, which negatively affected the compressive strength of such materials. The obtained results indicate that the usage of relatively high sintering temperatures is not always the necessary step for producing geopolymer-based types of cement with prominent mechanical properties.
U ovom radu ispitivan je uticaj količine dodatog brušita i temperature sinterovanja na mehanička svojstva geopolimer-brušit veziva. Kao polazni materijali za sintezu korišćeni su kaolinitska glina i sintetisani brušit. Kompletna fazna i strukturna analiza izvršena je difrakcijom rendgenskih zraka na prahu i infracrvenom spektroskopijom sa Furijeovom transformacijom. Efekat dodatka brušita u geopolimernu matricu poboljšao je pritisnu čvrstoću, dok je biskvitno pečenje izazvalo faznu transformaciju brušita u kalcijum pirofosfat što je negativno uticalo na pritisnu čvrstoću takvih materijala. Dobijeni rezultati ukazuju da korišćenje relativno visokih temperatura sinterovanja nije uvek neophodan korak za proizvodnju cementa na bazi geopolimera sa istaknutim mehaničkim svojstvima.
Keywords:
Geopolymer - based cement materials / Brushite / Biscuit sintering / Mechanical properties / Geopolimerni cementni materijali / Brušit / Biskvitno sinterovanje / Mehaničke osobine
Source:
Science of Sintering, 2022, 54, 3, 287-294
Publisher:
  • Association for ETRAN Society
Funding / projects:
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200017 (University of Belgrade, Institute of Nuclear Sciences 'Vinča', Belgrade-Vinča) (RS-200017)
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) (RS-200026)
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200116 (University of Belgrade, Faculty of Agriculture) (RS-200116)

DOI: 10.2298/SOS2203287D

ISSN: 0350-820X; 1820-7413

Scopus: 2-s2.0-85137860480
[ Google Scholar ]
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/5332
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Đukić, Dunja
AU  - Šuljagić, Marija
AU  - Anđelković, Ljubica
AU  - Pavlović, Vera
AU  - Bučevac, Dušan
AU  - Vrbica, Boško
AU  - Mirković, Miljana
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5332
AB  - The effect of Ca2+ amount and sintering temperature on mechanical properties of geopolymer-brushite (GPB) binders was investigated. Brushite and raw abandoned kaolinite clay thermally transformed into metakaolin were used for GPB synthesis. The complete phase and structural analyses were performed by X-ray powder diffraction, and Fourier transforms infrared spectroscopy (FT-IR). The pore-filling effect as a consequence of Ca2+ ions incorporation into the hybrid geopolymer networks improved the compressive strength. On the other hand, the chosen biscuit sintering at 800 and 900oC caused the phase transformation of brushite into calcium pyrophosphate, which negatively affected the compressive strength of such materials. The obtained results indicate that the usage of relatively high sintering temperatures is not always the necessary step for producing geopolymer-based types of cement with prominent mechanical properties.
AB  - U ovom radu ispitivan je uticaj količine dodatog brušita i temperature sinterovanja na mehanička svojstva geopolimer-brušit veziva. Kao
polazni materijali za sintezu korišćeni su kaolinitska glina i sintetisani brušit. Kompletna fazna i strukturna analiza izvršena je difrakcijom
rendgenskih zraka na prahu i infracrvenom spektroskopijom sa Furijeovom transformacijom. Efekat dodatka brušita u geopolimernu matricu poboljšao je pritisnu čvrstoću, dok je biskvitno pečenje izazvalo faznu transformaciju brušita u kalcijum pirofosfat što je negativno uticalo na pritisnu čvrstoću takvih materijala. Dobijeni rezultati ukazuju da korišćenje relativno visokih temperatura sinterovanja nije uvek neophodan korak za proizvodnju cementa na bazi geopolimera sa istaknutim mehaničkim svojstvima.
PB  - Association for ETRAN Society
T2  - Science of Sintering
T1  - Effect of Sintering Temperature and Calcium amount on Compressive Strength of Brushite-Metakaolin Polymer Materials
VL  - 54
IS  - 3
SP  - 287
EP  - 294
DO  - 10.2298/SOS2203287D
ER  - 
@article{
author = "Đukić, Dunja and Šuljagić, Marija and Anđelković, Ljubica and Pavlović, Vera and Bučevac, Dušan and Vrbica, Boško and Mirković, Miljana",
year = "2022",
abstract = "The effect of Ca2+ amount and sintering temperature on mechanical properties of geopolymer-brushite (GPB) binders was investigated. Brushite and raw abandoned kaolinite clay thermally transformed into metakaolin were used for GPB synthesis. The complete phase and structural analyses were performed by X-ray powder diffraction, and Fourier transforms infrared spectroscopy (FT-IR). The pore-filling effect as a consequence of Ca2+ ions incorporation into the hybrid geopolymer networks improved the compressive strength. On the other hand, the chosen biscuit sintering at 800 and 900oC caused the phase transformation of brushite into calcium pyrophosphate, which negatively affected the compressive strength of such materials. The obtained results indicate that the usage of relatively high sintering temperatures is not always the necessary step for producing geopolymer-based types of cement with prominent mechanical properties., U ovom radu ispitivan je uticaj količine dodatog brušita i temperature sinterovanja na mehanička svojstva geopolimer-brušit veziva. Kao
polazni materijali za sintezu korišćeni su kaolinitska glina i sintetisani brušit. Kompletna fazna i strukturna analiza izvršena je difrakcijom
rendgenskih zraka na prahu i infracrvenom spektroskopijom sa Furijeovom transformacijom. Efekat dodatka brušita u geopolimernu matricu poboljšao je pritisnu čvrstoću, dok je biskvitno pečenje izazvalo faznu transformaciju brušita u kalcijum pirofosfat što je negativno uticalo na pritisnu čvrstoću takvih materijala. Dobijeni rezultati ukazuju da korišćenje relativno visokih temperatura sinterovanja nije uvek neophodan korak za proizvodnju cementa na bazi geopolimera sa istaknutim mehaničkim svojstvima.",
publisher = "Association for ETRAN Society",
journal = "Science of Sintering",
title = "Effect of Sintering Temperature and Calcium amount on Compressive Strength of Brushite-Metakaolin Polymer Materials",
volume = "54",
number = "3",
pages = "287-294",
doi = "10.2298/SOS2203287D"
}
Đukić, D., Šuljagić, M., Anđelković, L., Pavlović, V., Bučevac, D., Vrbica, B.,& Mirković, M.. (2022). Effect of Sintering Temperature and Calcium amount on Compressive Strength of Brushite-Metakaolin Polymer Materials. in Science of Sintering
Association for ETRAN Society., 54(3), 287-294.
https://doi.org/10.2298/SOS2203287D
Đukić D, Šuljagić M, Anđelković L, Pavlović V, Bučevac D, Vrbica B, Mirković M. Effect of Sintering Temperature and Calcium amount on Compressive Strength of Brushite-Metakaolin Polymer Materials. in Science of Sintering. 2022;54(3):287-294.
doi:10.2298/SOS2203287D .
Đukić, Dunja, Šuljagić, Marija, Anđelković, Ljubica, Pavlović, Vera, Bučevac, Dušan, Vrbica, Boško, Mirković, Miljana, "Effect of Sintering Temperature and Calcium amount on Compressive Strength of Brushite-Metakaolin Polymer Materials" in Science of Sintering, 54, no. 3 (2022):287-294,
https://doi.org/10.2298/SOS2203287D . .

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