TY - GEN
T1 - Mixed alkali regional metakaolin-based geopolymer
AU - Sá Ribeiro, Ruy A.
AU - Sá Ribeiro, Marilene G.
AU - Sankar, Kaushik
AU - Kutyla, Gregory P.
AU - Kriven, Waltraud M.
N1 - Funding Information:
This research is part of the postdoctoral project Engineered Building Components with Green Geopolymers which aims at the development of high performance green-sustainable technologies, using local materials cultivated in the Amazon (like bamboo). Bamboo collection and fiber preparation and conditioning were carried out at the Structural Engineering Laboratory (LTEE-INPA). SEM and XRD were carried out at the Frederick Seitz Materials Research Laboratory Central Facilities (FS-MRL). XRF and PSA were provided by Daniel Ribero. Flexural strength tests were carried out at the Advanced Mechanical Testing and Evaluation Laboratory of UIUC. This work was partially supported by the US Air Force Office of Scientific Research (AFOSR) through the Tyndall Air Force base in Florida under Grant No. FA 8650-11-1-5900, and by CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico - Brazil.
Funding Information:
ACKNOWLEDGEMENTS This research is part of the postdoctoral project Engineered Building Components with Green Geopolymers which aims at the development of high performance green-sustainable technologies, using local materials cultivated in the Amazon (like bamboo). Bamboo collection and fiber preparation and conditioning were carried out at the Structural Engineering Laboratory (LTEE-INPA). SEM and XRD were carried out at the Frederick Seitz Materials Research Laboratory Central Facilities (FS-MRL). XRF and PSA were provided by Daniel Ribero. Flexural strength tests were carried out at the Advanced Mechanical Testing and Evaluation Laboratory of UIUC. This work was partially supported by the US Air Force Office of Scientific Research
Publisher Copyright:
© 2017 by The American Ceramic Society.
PY - 2017
Y1 - 2017
N2 - In pursuit of sustainable construction, regional natural materials can be used as a base for geopolymer processing. For higher strength achievement, this study uses mixed potassium-sodium geopolymer. Geopolymer was synthesized using metakaolin produced from kaolinite extracted from Amazonian soil, and microscopically compared to a commercial, highly reactive, metakaolin-based geopolymer. Amazonian kaolin was converted into metakaolin by calcination up to 700 °C. X-ray diffraction (XRD) analysis showed the resulting amorphous metakaolin to be 76% pure, with 24% crystalline quartz impurity. Four-point flexural and compressive strength testings of the geopolymer were carried out according to ASTM standards. Scanning electron microscopy was used to investigate the microstructure and the Si/Al ratio. In addition, XRD was used to confirm the formation of geopolymer.
AB - In pursuit of sustainable construction, regional natural materials can be used as a base for geopolymer processing. For higher strength achievement, this study uses mixed potassium-sodium geopolymer. Geopolymer was synthesized using metakaolin produced from kaolinite extracted from Amazonian soil, and microscopically compared to a commercial, highly reactive, metakaolin-based geopolymer. Amazonian kaolin was converted into metakaolin by calcination up to 700 °C. X-ray diffraction (XRD) analysis showed the resulting amorphous metakaolin to be 76% pure, with 24% crystalline quartz impurity. Four-point flexural and compressive strength testings of the geopolymer were carried out according to ASTM standards. Scanning electron microscopy was used to investigate the microstructure and the Si/Al ratio. In addition, XRD was used to confirm the formation of geopolymer.
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U2 - 10.1002/9781119321811.ch12
DO - 10.1002/9781119321811.ch12
M3 - Conference contribution
AN - SCOPUS:85029893983
T3 - Ceramic Engineering and Science Proceedings
SP - 123
EP - 133
BT - Developments in Strategic Ceramic Materials II - A Collection of Papers Presented at the 40th International Conference on Advanced Ceramics and Composites, ICACC 2016
A2 - Kriven, Waltraud M.
A2 - Wang, Jingyang
A2 - Zhou, Yanchun
A2 - Zhu, Dongming
A2 - Costa, Gustavo
PB - American Ceramic Society
T2 - Developments in Strategic Ceramic Materials II - 40th International Conference on Advanced Ceramics and Composites, ICACC 2016
Y2 - 24 January 2016 through 29 January 2016
ER -