Phosphate sludge-based ceramics: Microstructure and effects of processing factors

The potential use of clay amended phosphate sludge in lightweight aggregates manufacturing was assessed. For this purpose, the microstructure of heated blends was examined with X-ray diffraction, thermal analysis and scanning electron microscope and impedance spectroscopy, and their physical propert...

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Bibliographic Details
Published in:Journal of Building Engineering 2017-05, Vol.11, p.48-55
Main Authors: Loutou, Mohamed, Hajjaji, Mohamed, Babram, Mohammed Ait, Mansori, Mohammed, Favotto, Claude, Hakkou, Rachid
Format: Article
Language:English
Subjects:
Dielectrics
Engineering Sciences
Full factorial design
Mechanical properties
Micro and nanotechnologies
Microelectronics
Microstructure
Phosphate sludge, Ceramics
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Summary:The potential use of clay amended phosphate sludge in lightweight aggregates manufacturing was assessed. For this purpose, the microstructure of heated blends was examined with X-ray diffraction, thermal analysis and scanning electron microscope and impedance spectroscopy, and their physical properties were followed as a function of heating temperature, soaking time and clay content. For the latter study, the full factorial design was used. The results showed that phase neoformation involved the breakdowns of the clay minerals and lime of carbonates. Moreover, the sintering process was significant as the clay content exceeded 5wt% and 900
ISSN:2352-7102
2352-7102
DOI:10.1016/j.jobe.2017.04.002