TY - JOUR
T1 - Lateritic soil geopolymer composites for ceramics and engineering construction applications
AU - Sá Ribeiro, Marilene G.
AU - Sardela, Mauro R.
AU - Keane, Patrick F.
AU - Lopez, Juan S.
AU - Kriven, Waltraud M.
AU - Sá Ribeiro, Ruy A.
N1 - Funding Information:
This work was partially funded by INPA‐National Institute for Amazonian Research, the University of Illinois at Urbana‐Champaign and Keanetech, LLC of Champaign, IL, USA. Lateritic soil collection, preparation, and conditioning were carried out at the Green Building and Engineering Laboratory (LECVerde‐INPA). Commercial sodium waterglass was donated by the PQ Corporation, Pennsylvania, USA. SEM/EDS, XRD, and XRF were carried out at the Frederick Seitz Materials Research Laboratory (FSMRL) in the Center for Microanalysis of Materials. Physical and mechanical testing were carried out in the Geopolymer Laboratories at the University of Illinois at Urbana‐Champaign and in the LECVerde‐INPA.
Funding Information:
This work was partially funded by INPA-National Institute for Amazonian Research, the University of Illinois at Urbana-Champaign and Keanetech, LLC of Champaign, IL, USA. Lateritic soil collection, preparation, and conditioning were carried out at the Green Building and Engineering Laboratory (LECVerde-INPA). Commercial sodium waterglass was donated by the PQ Corporation, Pennsylvania, USA. SEM/EDS, XRD, and XRF were carried out at the Frederick Seitz Materials Research Laboratory (FSMRL) in the Center for Microanalysis of Materials. Physical and mechanical testing were carried out in the Geopolymer Laboratories at the University of Illinois at Urbana-Champaign and in the LECVerde-INPA.
Publisher Copyright:
© 2022 The American Ceramic Society.
PY - 2022/7/1
Y1 - 2022/7/1
N2 - Characterization of an Amazonian, laterite-doped, kaolinitic soil (LK) or “lateritic soil” and laterite-doped metakaolin (LMK) calcined at two distinct rates, as well as granite-marble (GM) particulate industrial wastes was performed by thermogravimetric analysis (TGA), scanning electron microscopy (SEM), X-ray diffraction (XRD), energy dispersive X-ray fluorescence (XRF) spectrometry, and particle size and distribution analysis. In addition, an LMK geopolymer (GP) and a lateritic metakaolin-based GP reinforced with granite-marble composite (LMKGP-GM) were tested for water resistance and for mechanical strength. XRD and XRF were used to investigate the composition of the composite materials, while XRD confirmed the formation of GP. Just as in the case of highly reactive commercial metakaolin used in construction, according to this study, lateritic soil-based metakaolin presented similar characteristics. Therefore, it could be used in the development of more sustainable ceramics and construction materials, including the use of GM waste as a reinforcing phase/aggregate.
AB - Characterization of an Amazonian, laterite-doped, kaolinitic soil (LK) or “lateritic soil” and laterite-doped metakaolin (LMK) calcined at two distinct rates, as well as granite-marble (GM) particulate industrial wastes was performed by thermogravimetric analysis (TGA), scanning electron microscopy (SEM), X-ray diffraction (XRD), energy dispersive X-ray fluorescence (XRF) spectrometry, and particle size and distribution analysis. In addition, an LMK geopolymer (GP) and a lateritic metakaolin-based GP reinforced with granite-marble composite (LMKGP-GM) were tested for water resistance and for mechanical strength. XRD and XRF were used to investigate the composition of the composite materials, while XRD confirmed the formation of GP. Just as in the case of highly reactive commercial metakaolin used in construction, according to this study, lateritic soil-based metakaolin presented similar characteristics. Therefore, it could be used in the development of more sustainable ceramics and construction materials, including the use of GM waste as a reinforcing phase/aggregate.
KW - granite-marble particulate
KW - metakaolin
KW - microstructure characterization
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U2 - 10.1111/ijac.14046
DO - 10.1111/ijac.14046
M3 - Article
AN - SCOPUS:85127236948
SN - 1546-542X
VL - 19
SP - 2148
EP - 2159
JO - International Journal of Applied Ceramic Technology
JF - International Journal of Applied Ceramic Technology
IS - 4
ER -