Liquid phase sintering of dense and porous glass-ceramics from coal fly-ash and waste glass

Bossert, J.; Fidančevska, Emilija; Mangutova, B.; Panova, B.; Milosevski, D.; Milosevski, M.

doi:10.2298/sos0402087b

Cited by 16 publications

(13 citation statements)

References 3 publications

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“…It is very important to convert industrial wastes into pyroxene glass-ceramics because these glass-ceramics are promising materials to be used in construction industry for facing materials due to its high mechanical and chemical properties and low manufacturing cost. 77) Bossert et al 78) fabricated glass-ceramics using fly-ash from coal power stations and waste glass of TV monitors, windows and flask glass. They improved bending strength from 12 to 56 MPa and E-modulus from 6 to 26 GPa at 50% waste TV glass and 50% fly ash mixture.…”

Section: Recycle and Reuse Of Materialsmentioning

confidence: 99%

Eco-friendly processing and methods for ceramic materials - A review

Duran

Sato

Hotta

et al. 2008

J. Ceram. Soc. Japan

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Restrictions regarding waste disposal and strict environmental regulations require eco-friendly technologies. Organics such as binders are used extensively in green body fabrication but they must be eliminated and/or decreased due to global problems because during heat treatment carbon dioxide and other hydrocarbon emissions take place after organic decomposition. If it is possible to remove these polymers fully or partially before heat treatment, then harmful gas evolution to the atmosphere can be eliminated and/or controlled. In the cases where the organic usage is imperative, they must be replaced with the low-toxic or non-toxic ones because toxic substances pose the greatest threat to human beings and the environment. It is also important to recycle the wastes from various sources in order to save energy. This paper reviews the efforts to find or explore new ecofriendly processes, modifications and chemical methods in order to replace currently used ones from the viewpoint of sustainable development.

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Section: Recycle and Reuse Of Materialsmentioning

confidence: 99%

Eco-friendly processing and methods for ceramic materials - A review

Duran

Sato

Hotta

et al. 2008

J. Ceram. Soc. Japan

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“…The first is controlled crystallization, meaning that melted fly ash is exposed to the one or two steps of the heat treatment for crystallization followed by nucleation and crystal growth [12][13][14][15]. The second technique developed for glass-ceramics production involves sintering of the fly ash with or without any additives [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Production of Glass-Ceramics From Waste Materials and Optimization of the Main Process Parameters

Angjusheva

Fidancevski

Lisichkov

et al. 2017

JEPM

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In this study the 3D surface model was successfully applied in investigating the influence of the process parameters on the physical and mechanical properties of the glass-ceramics. Glassceramics was produced from coal fly ash and waste glass through the sintering method. The raw material was taken from "REK Bitola", a thermal power plant in the Republic of Macedonia. Glass-ceramics was obtained through the process of consolidation. Compacts with different ratio of

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“…The similarity in the chemical composition of the fl y ash and clay make the fl y ash a possible substitute for clay consumption. By using different materials as pore creators there are many procedures that are usually employed to make porous ceramics products (Wu, Boccaccini, Lee, Kershaw and Rawlings, 2006;Bossert et al, 2004;Mangutova, Fidancevska, Milosevski and Bossert, 2004). Wang et al (2008) reported for developing lightweight aggregate from fl y ash and dry sewage sludge.…”

Section: Introductionmentioning

confidence: 99%

Production and Characterization of Porous Ceramics From Coal Fly Ash and Clay

Angjusheva

Fidančevska

Jovanov

2017

QOL

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Abstract:The disposal of coal fl y ash obtained in thermal power plants presents the general problem all over the world. Signifi cant research on the utilization of fl y ash has been carried out in the area of construction materials. The aim of this study was to develop porous ceramics based on coal fl y ash and clay (60wt.%clay and 40wt.% fl y ash). Three types of pore creators: two types of wood cutting (Quercus and Facus sylvatica) and C-powder were used for creating of the porous ceramics. The mixtures based on fl y ash and clay and different content of pore creators (2, 5, 10 and 20wt.%) were consolidated (P=45 MPa, T = 900, 1000, 1050 and 1100 o C/1h) to obtain porous ceramic (PC). The results indicate that the properties of the porous ceramics depend on the type and content of the pore creators. Furthermore, the sintering temperature was found to be main factor affecting the properties of the sintered products. The maximal bending strength (26 MPa) was achieved by using 2wt% P3 (C-powder) and the porous ceramics has the density and porosity of 1.90g/cm 3 and 22%, respectively. By using the highest content (20wt.% ) of each pore creator (P1, P2 and P3) the lowest bending strength cca 5 MPa was achieved and the variation of the density and porosity was in the range from 1.22 to 1.32 g/cm 3 and 44 to 48%, respectively. Water absorption, durability and the microstructure of the obtained porous ceramics are also reported in this paper.

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Liquid phase sintering of dense and porous glass-ceramics from coal fly-ash and waste glass

Cited by 16 publications

References 3 publications

Eco-friendly processing and methods for ceramic materials - A review

Eco-friendly processing and methods for ceramic materials - A review

Production of Glass-Ceramics From Waste Materials and Optimization of the Main Process Parameters

Production and Characterization of Porous Ceramics From Coal Fly Ash and Clay

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