Effect of Sintering Temperature and Calcium amount on Compressive Strength of Brushite-Metakaolin Polymer Materials
Authors
Đukić, DunjaŠuljagić, Marija

Anđelković, Ljubica

Pavlović, Vera

Bučevac, Dušan
Vrbica, Boško
Mirković, Miljana
Article (Published version)
Metadata
Show full item recordAbstract
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 osobineSource:
Science of Sintering, 2022, 54, 3, 287-294Publisher:
- 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)
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Institution/Community
IHTMTY - 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 . .