Abstract
In this study, glass-ceramics was prepared with coal fly ash by direct sintering to solve the problem of resource utilization of coal fly ash. The effects of the sintering temperature on volume density, water absorption, and open and closed porosity from 1000 to 1200 °C were investigated. The sintering process of glass-ceramics was also investigated by XRD and SEM. The data indicate that the sintering process was accomplished by dissolving the solid amorphous phases, hematite, and portion quartz of coal fly ash to form anorthite. During the process, the open porosity of the material gradually tended to closure. The glass-ceramics fired at 1180 °C for 30 min featured good strengths, with compressive strength of 122 MP and bending strength of 34 MP. The obtained relatively low density of 1.94 g cm−3 and moderate water absorption of about 1% would make these materials suitable for lightweight construction tiles. Besides, owing to the abundance of coal fly ash produced from thermal power plants, the present technology should be suitable for large-scale manufacturing of glass-ceramics, with economic benefits and possible solutions to environmental and wastes disposal concerns.
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References
Qi L, Yuan Y (2011) Characteristics and the behavior in electrostatic precipitators of high-alumina coal fly ash from the Jungar power plant, Inner Mongolia, China. J Hazard Mater 192:222–225
Liu J, Dong Y, Dong X et al (2016) Feasible recycling of industrial waste coal fly ash for preparation of anorthite-cordierite based porous ceramic membrane supports with addition of dolomite. J Eur Ceram Soc 36:1059–1071
Luo Y, Ma S, Liu C et al (2017) Effect of particle size and alkali activation on coal fly ash and their role in sintered ceramic tiles. J Eur Ceram Soc 37:1847–1856
Kim JM, Kim HS (2004) Processing and properties of a glass-ceramic from coal fly ash from a thermal power plant through an economic process. J Eur Ceram Soc 24:2825–2833
Li B, Deng L, Zhang X et al (2013) Structure and performance of glass-ceramics obtained by bayan obo tailing and fly ash. J Non-Cryst Solids 380:103–108
Yoon SD, Lee JU, Lee JH et al (2013) Characterization of wollastonite glass-ceramics made from waste glass and coal fly ash. J Mater Sci Technol 29(2):149–153
Erol M, Küçükbayrak S, Ersou-Meriçboyu A (2007) Production of glass-ceramics obtained from industrial wastes by means of controlled nucleation and crystallization. Chem Eng J 132:335–343
Francis AA, Rawlings RD, Sweeney R et al (2002) Processing of coal ash into glass ceramic products by powder technology and sintering. Glass Technol 42(2):58–62
Dimech C, Cheeseman CR, Cook S et al (2008) Production of sintered materials from air pollution control residues from waste incineration. J Mater Sci 43:4143–4151
Binhussain MA, Marangoni M, Bernardo E et al (2014) Sintered and glazed glass-ceramics from natural and waste raw materials. Ceram Int 40:3543–3551
Dai S, Zhao L, Peng S et al (2010) Abundances and distribution of minerals and elements in high-alumina coal fly ash from the Jungar powder plant, Inner Mongolia China. Int J Coal Geol 81:320–332
Lu J, Lu Z, Peng C et al (2014) Influence of particle size on sinterability, crystallisation kinetics and flexural strength of wollastonite glass-ceramics from waste glass and fly ash. Mater Chem Phys 148:449–456
Lu Z, Lu J, Li X et al (2016) Effect of MgO addition on sinterability, crystallization kinetics, and flexural strength of glass–ceramics from waste materials. Ceram Int 42:3452–3459
Yürüyen S, Toplan HÖ (2009) The sintering kinetics of porcelain bodies made from waste glass and fly ash. Ceram Int 35:2427–2433
Demirkiran AS, Artir R, Avci E (2008) Effect of natural zeolite addition on sintering kinetics of porcelain bodies. J Mater Process Tech 203:465–470
Andreola F, Barbieri L, Karamanova E et al (2008) Recycling of CRT panel glass as fluxing agent in the porcelain stoneware tile production. Ceram Int 34:1289–1295
Bernardo E, Lazzari MD, Colombo P et al (2010) Lightweight porcelain stoneware by engineered CeO2 addition. Adv Eng Mater 12:65–70
Lin B, Li S, Hou X et al (2015) Preparation of high performance mullite ceramics from high-aluminum fly ash by an effective method. J Alloy Compd 623:359–361
Wei Z, Hou J, Zhu Z (2016) High-aluminum fly ash recycling for fabrication of cost-effective ceramic membrane supports. J Alloy Compd 683:474–480
Ilic M, Cheeseman C, Sollars C, et al (2003) Mineralogy and microstructure of sintered lignite coal fly ash. Fuel 82:331–336
Zhang Z, Zhang L, Li A (2015) Development of a sintering process for recycling oil shale fly ash and municipal solid waste incineration bottom ash into glass ceramic. Waste Manage 38:185–193
Mukhopadhyay TK, Ghosh S, Ghosh J et al (2010) Effect of fly ash on the physico-chemical and mechanical properties of a porcelain composition. Ceram Int 36:1055–1062
Qin J, Cui C, Cui X et al (2015) Recycling of lime mud and fly ash for fabrication of anorthite ceramic at low sintering temperature. Ceram Int 41:5648–5655
Rice RW (1998) Porosity of ceramics. Marcel Decker Inc., New York
Acknowledgements
This work was financially supported by the Longshan academic talent research and Innovation Team Project of SWUST (Grant No. 17LZXT11).
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Zeng, L., Sun, H., Peng, T., Zheng, W. (2020). Sintering Process and Characteristics of Glass-Ceramics from Coal Fly Ash. In: Li, B., et al. Advances in Powder and Ceramic Materials Science. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-36552-3_1
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DOI: https://doi.org/10.1007/978-3-030-36552-3_1
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