Effect of Grinding Fineness of Fly Ash on the Properties of Geopolymer Foam

• Autorzy: Szabó R. , Gombkötö I. , Svéda M. , Mucsi G.

Identyfikatory

DOI

10.1515/amm-2017-0188

• Języki publikacji: EN

Abstrakty

EN

Present paper deals with the development of geopolymer foam prepared from ground F class power station fly ash. The effect of the fly ash fineness on the rheology of the geopolymer paste and the foam properties have been investigated. The raw fly ash was ground in a ball mill for various duration, 5, 10, 20, 30, 60 and 120 min. Geopolymer paste was prepared from the raw and ground fly ash with NaOH – sodium silicate mixture as alkaline activator. Geopolymer foam production was made using H₂O₂ as foaming agent. Additionally, the geopolymer material structure was investigated by Fourier transform infrared spectrometer, the foam cell structure was monitored using optical microscopy. The rheological behaviour of the geopolymer paste changed due to the grinding of fly ash (from Bingham plastic to Newtonian liquid). Grinding of fly ash has a significant effect on the physical properties as well as on the cell structure of the geopolymer foam.

Słowa kluczowe

EN

fly ash; grinding; rheology; geopolymer foam; cell structure

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2017
• Tom: Vol. 62, iss. 2B
• Strony: 1257--1261
• Opis fizyczny: Bibliogr. 15 poz., rys.

Twórcy

autor

Szabó R.

• Institute of Raw Material Preparation and Environmental Processing, University of Miskolc, 3515 Miskolc, Hungary

autor

Gombkötö I.

• Institute of Raw Material Preparation and Environmental Processing, University of Miskolc, 3515 Miskolc, Hungary

autor

Svéda M.

• MTA-ME Materials Science Research Group, University of Miskolc, 3515 Miskolc, Hungary

autor

Mucsi G.

• Institute of Raw Material Preparation and Environmental Processing, University of Miskolc, 3515 Miskolc, Hungary

Bibliografia

• [1] V. Vaou, D. Panias, Miner. Eng. 23 (14), 1146-1151 (2010).
• [2] J. Davidovits, Geopolymer chemistry and application, Saint-Quentin France, 2011
• [3] J. Davidovits, J. Materials Education 16, 91-138 (1994).
• [4] G. Mucsi, J. Lakatos, Z. Molnár, R. Szabó, in D. Cygas, T. Tollazzi (Ed.), Paper 39, Vilnius Gediminas Technical University Press, Vilnius (2014).
• [5] K. Komintsas, D. Zaharaki, Mineral Engineering 20, 1261-1277 (2007).
• [6] Z. Abdollahnejad, F. Pacheco-Torgal, T. Félix, W. Tahri, J. Barroso Aguiar, Construction and Building Materials 80, 18-30 (2015).
• [7] P. Hlaváček, V. Šmilauer, F. Škvára, L. Kopecký, R. Šulc, Journal of the European Ceramic Society 35(2), 703-709 (2015).
• [8] W.D.A. Rickard, A. van Riessen, Cement and Concrete Composites 48, 75-82 (2014).
• [9] J.G. Sanjayan, A. Nazari, L. Chen, G.H. Nguyen, Construction and Building Materials 79, 236-244 (2015).
• [10] V. Ducman, L. Korat, Materials characterization 113, 207-213 (2016).
• [11] M.S. Cilla, P. Colombo, M.R. Morelli, Ceramics International 40, 5723-5730 (2014).
• [12] D. Panias, I.P. Giannopoulou, T. Perraki, Colloids and Surfaces A. 301, 246-54 (2007).
• [13] W.K.W. Lee, J.S.J. van Deventer, Colloids and Surfaces A. 211, 49-66 (2002).
• [14] S. Kumar, R. Kumar, Ceramics International 37, 533-541 (2011).
• [15] G. Mucsi, Á. Szenczi, Z. Molnár, J. Lakatos, Environmental Engineering and Landscape Management 24(1), 48-59 (2016).

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)