Mechanical characteristics of clay structural ceramics containing coal fly ash
Source abstract
Abstract
In this work, the mechanical characterization of ceramic products processed from red clay with different amounts of added coal fly ash was investigated. Coal fly ash produced by power plants is a waste material that constitutes an alternative source of minerals for the production of traditional building ceramics, as it is a complex mixture of several oxides such as SiO2, Al2O3, CaO, Fe2O3, Na2O, TiO2, which are usually present in the composition of such ceramics. A powder technology and firing route was followed for the processing of the clay and coal fly ash based ceramics. Different proportions of waste (10, 25 and 50%, by weight) were added to red clay, and then the mixed powders were pressed to form compacts that were fired at a selected temperature in the range 850–1,150°C. The effects of waste content and of heating conditions on the microstructure and mechanical characteristics of the obtained materials were investigated. The density, porosity, water absorption, flexural strength, hardness and fracture toughness of the produced materials were evaluated. A comparison was made between the properties of the produced ceramics with those of traditional ceramic materials used in construction, e.g. floor or wall tiles, and it was observed that the clay based products with coal fly ash additions may be used in similar applications.
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Research context
OpenAlex topics: Advanced ceramic materials synthesis · Recycling and utilization of industrial and municipal waste in materials production · Concrete and Cement Materials Research
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References (22)
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1. Anstis G.R., Chantikul, P., Lawn, B.R., Marshall, D.B.: A critical evaluation of indentation techniques for determining fracture toughness: I, direct crack measurements. J. Am. Ceram. Soc. 64, 533–538 (1981).10.1111/j.1151-2916.1981.tb10320.x ↗
2. Appendino, P., Ferraris, M., Matekovits, I., Salvo, M.: Production of glass-ceramic bodies from the bottom ashes of municipal solid waste incinerators. J. Eur. Ceram. Soc. 24, 803–810 (2004).10.1016/S0955-2219(03)00264-4 ↗
3. ASM International: Engineered Materials Handbook: Ceramics and Glasses, vol. 4. The Materials Information Society, USA, 1991.
4. Bray, C.: Ceramic and Glass: A Basic Technology. Society of Glass Technology, Sheffield (2000).
5. Cardarelli, F.: Materials Handbook: A Concise Desktop Reference. Springer-Verlag, London (2000).10.1007/978-1-4471-3648-4 ↗
6. Dana, K., Das, S., Das S.K.: Effect of substitution of fly ash for quartz in triaxial kaolin-quartz-feldspar system. J. Eur. Ceram. Soc. 24, 3169–3175 (2004).10.1016/j.jeurceramsoc.2003.10.008 ↗
7. Erol, M., Genç, A., Oveçoglu, M.L., Kuçukbayrak, S., Taptik, Y., Yucelen, E.: Characterization of a glass-ceramic produced from Çayirhan thermal power plant fly ashes. J. Eur. Ceram. Soc. 20, 2209–2214 (2000).10.1016/S0955-2219(00)00099-6 ↗
8. Ferraris, M., Salvo, M., Smeacetto, F., Augier, L., Barbieri, L., Corradi, A., Lancellotti, I.: Glass matrix composites from solid waste materials. J. Eur. Ceram. Soc. 21, 453–460 (2001).10.1016/S0955-2219(00)00236-3 ↗
9. Gong, J.: Indentation toughness of ceramics: a statistical analysis. Ceram. Int. 28, 767–772 (2002).10.1016/S0272-8842(02)00041-X ↗
10. Gong, J., Si, W., Guan, Z.: Effect of load-dependence of hardness on indentation toughness determination for soda-lime glass. J. Non-Cryst. Solids 282, 325–328 (2001).10.1016/S0022-3093(01)00341-6 ↗
11. Kikuchi, R.: Application of coal ash to environmental improvement. Transformation into zeolite, potassium fertilizer and FGD absorbent. Resour Conserv Recy. 27, 333–346 (1999).10.1016/S0921-3449(99)00030-0 ↗
12. Kulkarni, S.M., Kishore: Effects of surface treatment and size of fly ash particles on the compressive properties of epoxy based particulate composites. J. Mat. Sci. 37, 4321–4326 (2002).10.1023/A:1020648418233 ↗
13. Kumar, S., Singh, K.K., Rao, P.R.: Effect of fly ash additions on the mechanical and other properties of porcelainised stoneware tiles. J. Mat. Sci. 36, 5917–5922 (2001).10.1023/A:1012936928769 ↗
14. Leroy, C., Ferro, M.C., Monteiro, R.C.C., Fernandes, M.H.V.: Production of glass-ceramics from coal ashes. J. Eur. Ceram. Soc. 21, 195–202 (2001).10.1016/S0955-2219(00)00193-X ↗
15. Levin, E.M., Robbins, C.R., McMurdie, H.F.: Phase Diagrams for Ceramists: vol. 1, pp. 219 and 241. The American Ceramic Society, Inc., Ohio, USA (1964).
16. Lingling, X., Wei, G., Tao, W., Nanru, Y.: Study on fired bricks with replacing clay by fly ash in high volume ratio. Construct. Build Mater. 19, 243–247 (2005).10.1016/j.conbuildmat.2004.05.017 ↗
17. Morrell, R.: Handbook of Properties of Technical and Engineering Ceramics. Part 1: An Introduction for the Engineer and Designer. HMSO Publication Center, London (1985).
18. Nazaret, F., Marzagui, H., Cutard, T.: Influence of the mechanical behaviour specificities of damaged refractory castables on the Young’s modulus determination. J. Eur. Ceram. Soc. 26, 1429–1438 (2006).10.1016/j.jeurceramsoc.2005.03.231 ↗
19. Olek, J.: Dynamic/static modulus of elasticity and Poisson’s ratio of fly ash concrete. In: Brandt, A.M., Li, V.C., Marshall, I.H. (eds.) Proceedings of the International Symposium on Brittle Matrix Composites, vol. 4, pp. 425–436. IKE and Woodhead Publishers, Warsaw (1994).
20. Ponton, C.B., Rawlings, R.D.: Vickers indentation fracture toughness test I. Mater. Sci. Tech. 5, 865–872 (1989).10.1179/mst.1989.5.9.865 ↗
21. Querol, X., Umana, J.C., Plana, F., Alastuey, A., Lopez-Soler, A., Medinaceli, A., Valero, A., Domingo, M.J., Garcia-Rojo, E.: Synthesis of zeolites from ash at pilot plant scale. Examples of potential applications. Fuel 80, 857–865 (2001).10.1016/S0016-2361(00)00156-3 ↗
22. Schmitt, N., Berthaud, Y., Poitier, J.: Tensile behaviour of magnesia carbon refractories. J. Eur. Ceram. Soc. 20, 2239–2248 (2000).10.1016/S0955-2219(00)00088-1 ↗