Post-treated incinerator bottom ash as alternative raw material for ceramic manufacturing

Schabbach, Luciana Maccarini; Andreola, F.; Barbieri, Luisa; Lancellotti, Isabella; Karamanova, Emilia; Ranguelov, Bogdan; Karamanov, Alexander

doi:10.1016/j.jeurceramsoc.2012.01.020

Cited by 63 publications

(34 citation statements)

References 21 publications

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“…In these studies sintered glass-ceramics belonging to the pseudo-binary system albite-diopside, which form different percentages of diopside, were used. Later P CR formation was confirmed in other sintered glass-ceramic systems [53][54][55][56][57][58][59][60][61][62], as well as in some new ceramics with high crystallinity [63][64][65]. During sinter-crystallization, processes of densification and crystal phase formation take place in the same temperature interval.…”

Section: Introductionmentioning

confidence: 87%

8. Stress-induced Pore Formation and Phase Selection in a Crystallizing Stretched Glass

Fokin¹,

Karamanov²,

Abyzov³

et al. 2014

Glass

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In the present chapter, we describe results of experimental investigations and theoretical analysis of phase selection and nucleation of pores in small samples of undercooled diopside liquid when it is enclosed by a solid crystalline surface layer. The formation of the surface crystalline layer starts with nucleation and growth of highly dense diopside crystals. At the moment of impingement of these crystals on the sample surface, the crystallization pathway switches from diopside to a wollastonite-like (WL) phase. The origin of such switch can be explained by the fact that the formation of the WL-crystal produces less elastic stress energy than the same amount of diopside. This difference is due to the lower (as compared to diopside) density of the WL-crystal phase, which is closer to the liquid density. The relative content of the two crystalline phases can be changed by varying the sample size. Due to the density misfit the growth of the WL-crystalline layer leads to uniform stretching of the encapsulated liquid. This negative pressure leads finally to the formation of one small pore, which rapidly grows up to a size that almost eliminates the elastic stress and, therefore, dramatically reduces the driving force for further pore nucleation. The nucleation process of the pore is experimentally found to occur in a very narrow range of the relative widths of the surface layer (compared to the sample size) and, consequently, of negative pressures. We consider this fact as an indication that pore nucleation proceeds via homogeneous nucleation. The above-given qualitative explanation of the observed phenomena is corroborated by detailed theoretical calculations of elastic stress fields and their impact on phase selection and pore nucleation. Good qualitative and partly even quantitative agreement between experiment and theory is found. An overview on other systems with similar or related properties is included as well. The findings of this research are quite general because the densities of most glasses significantly differ from those of their iso-chemical crystals. By this reason, the studied phenomena are of high technological significance for the development of different types of glass-ceramic materials and the understanding and control of sinter-crystallization processes. The latter problem is also considered in the present chapter.

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Section: Introductionmentioning

confidence: 87%

8. Stress-induced Pore Formation and Phase Selection in a Crystallizing Stretched Glass

Fokin¹,

Karamanov²,

Abyzov³

et al. 2014

Glass

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“…This is typically associated with calcite decarbonation (CaCO 3 → CaO + CO 2 ). The usual temperature for calcite decarbonation is around 900 °C, but this phenomenon appears to occur at lower temperature when calcite is found in MWIBA [14,27,28] • Above 1000 °C, the thermal behavior is more difficult to interpret, although partial melting can be observed, and sintering and crystallization phenomena occurs. At high temperature, some weight losses can be attributed to alkali metal sulfates dissociation [6].…”

Section: Raw Materials Thermal Behaviormentioning

confidence: 99%

Development of a Thermal Energy Storage Pressed Plate Ceramic Based on Municipal Waste Incinerator Bottom Ash and Waste Clay

Ferber

Minh

Falcoz

et al. 2019

Waste Biomass Valor

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Pressed plates ceramics made of gross-milled bottom ashes and waste clay, were made using technologies available in the building bricks and tiles industry, to ease production upscaling at low-cost. These sintered ceramics are intended for use as a high-temperature thermal energy storage material. They represent an alternative to the waste-based petrurgic ceramics previously developed for this application. Post-treated incinerator bottom ashes from a commercial incinerator were collected, characterized and processed to form ceramic materials, using clay as a binder. Ashes were milled, dried, and mixed with various amounts of an illitic clay (produced as washing mud by a quartz quarry in proportions from 20 to 70% dry weight) prior to uniaxial pressing (12 × 5 × 1 cm slabs) and firing at various temperatures, ranging from 1050 to 1125 °C. The sintered samples have been characterized in terms of volumic mass, mechanical strength, thermal capacity and thermal conductivity. Their mineral structure has also been studied. The resulting sintered ceramics exhibit relatively high mechanical resistance and low thermal conductivity, along with moderate volumic mass. These properties allow envisioning the use as filler material for thermocline thermal storage systems (structured beds), and could be interesting for further work regarding applications in the construction field (bricks, tiles, pavements…).Keywords Thermal energy storage material · Waste-based ceramic · Sintering · Municipal waste incinerator bottom ashes Statement of NoveltyThe present work is specifically devoted to the development of easy-to-produce ceramics, which could be produced at large industrial scale. For this purpose, the technologies currently used in the materials construction industry have been adapted to transform municipal waste incinerator bottom ashes and waste clay as starting materials to ceramics for thermal energy storage (TES). This work contributes to the establishment of specifications for the industrial production feasibility of MWIBA ceramics for thermocline heat storage.

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“…He et al (2012) and Zhao et al (2010) have suggested the usage of red mud for high porosity ceramics due to the fact that it results in the increase of density of the ceramic products. Additionally, bottom ash is considered as a perfect raw material for ceramics due to its high carbon content (Porreca et al, 2007, Hu et al, 2008, and because it increases the bending strength between the particles (Schabbach et al, 2012). The quality of the magnesite is crucial in producing high quality caustic magnesia, free of impurities.…”

Section: Physicomechanical Propertiesmentioning

confidence: 99%

Characterization of a new laboratory ceramic product from industrial by-products as raw materials and caustic magnesia as additive

et al. 2013

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A new ceramic product is introduced by mixing caustic magnesia, produced in the laboratory from pure, high quality magnesite, and natural silt. Bottom ash and red mud, two well known environmentally hazardous industrial by-products, were also added in the mixture. After testing various recipes we concluded that addition of 5% caustic magnesia in the ceramic product greatly enhances its performance. Increase bonding of the ceramic microstructure is attributed to the formation of periclase necks, the concurrent formation of small quantities of amorphous material and the homogeneously distributed pores during the experimental firing of the mixture. Combined X-ray Diffractometry and Scanning Electron Microscopy of the ceramic product revealed the occurrence of unreactive phases, inherited by the raw materials, as well as newly-formed albite and magnesioferrite. Our results show that utilization of by-products may be important and environmental friendly materials in producing low cost ceramic building materials. ΠερίληψηΣτην εργασία αυτή παρουσιάζεται ένα νέο κεραμικό προϊόν που παράχθηκε από μίξη καυστικής μαγνησίας, που παρασκευάστηκε εργαστηριακά από υψηλής καθαρότητας μαγνησίτη, φυσικού πηλού καθώς και τέφρας πυθμένα και ερυθράς ιλύος, προϊόντα γνωστά για τις δυσμενείς περιβαλλοντικές επιπτώσεις τους. Έπειτα από δοκιμή ποικίλων συνταγών, συμπεράναμε ότι προσθήκη 5% καυστικής μαγνησίας στο κεραμικό προϊόν βελτιώνει τις μηχανικές επιδόσεις του. Αυτό αποδίδεται στο γεγονός ότι το περίκλαστο της καυστικής μαγνησίας σχηματίζει «λαιμούς», οι οποίοι ισχυροποιούν τους δεσμούς στη μικροδομή του κεραμικού, σε συνδυασμό με τον ταυτόχρονο σχηματισμό μικρών ποσοτήτων άμορφου υλικού και την ομοιογενή κατανομή των πόρων, που δημιουργούνται κατά την όπτηση. Με συνδυαστική μελέτη Περιθλασιμετρίας Ακτίνων Χ και Σαρωτικού Ηλεκτρονικού Μικροσκοπίου του XLVII, No 3 -2050 http://epublishing.ekt.gr | e-Publisher: EKT | Downloaded at 05/07/2020 00:46:55 | Raw Materials MagnesiteMagnesite samples were collected from a mining industry quarry in the Gerakini area, Chalkidiki peninsula, north Greece. The magnesite has a cryptocrystalline structure (crystal size below 10 μm), hence no particles are discernible even under a microscope. Whole-rock geochemical XLVII, No 3 -2051

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Post-treated incinerator bottom ash as alternative raw material for ceramic manufacturing

Cited by 63 publications

References 21 publications

8. Stress-induced Pore Formation and Phase Selection in a Crystallizing Stretched Glass

8. Stress-induced Pore Formation and Phase Selection in a Crystallizing Stretched Glass

Development of a Thermal Energy Storage Pressed Plate Ceramic Based on Municipal Waste Incinerator Bottom Ash and Waste Clay

Characterization of a new laboratory ceramic product from industrial by-products as raw materials and caustic magnesia as additive

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