Study of Fly Ash Geopolymer Based Composites with Polyester Waste Addition
In the present work, fly ash geopolymer based composites including polyester (PES) waste were studied. Specimens of three compositions were prepared: (a) fly ash geopolymer with 5% PES waste; (b) fly ash geopolymer mortar with 5% PES waste; (c) fly ash geopolymer mortar with 6.25% PES waste. Compressive and bending strength measurements, water absorption test and determination of thermal conductivity coefficient were performed. The results showed that the addition of sand in a mixture of geopolymer with 5% PES content led to higher compressive strength, while it increased water absorption and reduced thermal conductivity coefficient. The increase of PES addition in geopolymer mortars resulted in a more dense structure, indicated by the increase of strength and thermal conductivity and the decrease of water absorption.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1100220Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1981
 F. Winnefeld, A. Leemann, M. Lucuk, P. Svoboda, and M. Neuroth, “Assessment of phase formation in alkali activated low and high calcium fly ashes in building materials,” Constr. Build. Mater., vol. 24, pp. 1086–1093, 2010.
 W. D. A. Rickard, R. Williams, J. Temuujin, and A. van Riessen, “Assessing the suitability of three Australian fly ashes as an aluminosilicate source for geopolymers in high temperature applications,” Mater. Sci. Eng. A, vol. 528, pp. 3390–3397, 2011.
 P. Duxson, A. Fernández-Jiménez, J. L. Provis, G. C. Lucey, A. Palomo, and J. S. J. van Deventer, “Geopolymer technology: the current state of the art,” J. Mater. Sci., vol. 42, pp. 2917–2933, 2007.
 H. Mingyu, Zh. Xiaomin, and L. Fumei, “Alkali-activated fly ash-based geopolymers with zeolite or bentonite as additives,” Cem. Concr. Compos., vol. 31, pp. 762–768, 2009.
 S. Andini, R. Cioffi, F. Colangelo, T. Grieco, F. Montagnaro, and L. Santoro, “Coal fly ash as raw material for the manufacture of geopolymer-based products,” Waste Manage., vol. 28, pp. 416–423, 2008.
 M. Criado, A. Palomo, and A. Fernández-Jiménez, “Alkali activation of fly ashes. Part 1: Effect of curing conditions on the carbonation of the reaction products,” Fuel, vol. 84, pp. 2048–2054, 2005.
 M. C. G. Juenger, F. Winnefeld, J. L. Provis, and J. H. Ideker, “Advances in alternative cementitious binders,” Cem. Concr. Res., vol. 41, pp. 1232–1243, 2011.
 I. Špaček, and J. Kotovicová, “Recyclation of plastic wastes from production of PVC roofing sheets,” MendelNet '09 Agro Conf., Mendel University in Brno, Czech Republic, 2009.
 D. P. Bentz, “Transient plane source measurements of the thermal properties of hydrating cement pastes,” Mater. Struct., vol. 40, pp. 1073–1080, 2007.
 Y. Luo, and L. Wang, “Research on non-steam-cured and non-fired flyash thermal insulating materials,” J. China Univ. Min. Technol., vol. 18, pp. 0116–0121, 2008.