Paper 157
©University of Pécs, 2020 Abstract book for the 16th Miklós Iványi International PhD & DLA Symposium Péter IVÁNYI (Editor), ISBN 978-963-429-578-5, Paper 157, 2020.
Effect of tuff material on the properties of the lightweight expanded clay aggregates M. ABDELFATTAH, I. KOCSERHA, R. GÉBER Institute of Ceramic and Polymer Engineering, University of Miskolc, Hungary
Keywords: tuff, lightweight, clay, phase The aim of this work is focused on studying the effect of tuff materials on all properties and mineral phases of expanded clay minerals. The samples were characterized by XRF, XRD, SEM microscopy attached with EDAX and heating microscope. The European standards are applied to determine the physical and mechanical characteristics of the aggregates. Results showed that, the tuffs enhanced the height expansion of the aggregates to 70 % and decrease the densities of the lightweight aggregates to 28%. The mineral mullite phase can enhance the strength of the lightweight aggregates, but decrease the expansion of the lightweight clay aggregates.
Acknowledgments This research was supported by the European Union and the Hungarian State, co-financed by the European Regional Development Fund in the framework of the GINOP-2.3.4-15-201600004 project, aimed to promote the cooperation between the higher education and the industry.