Preparation and characterization of Miocene clay powders in the region of Taza (Morocco) after doping with metal oxides Al2O3

7th Maghreb Days of Material Sciences

Mesrar, L.^2 ; Lakrim, M.^1 ; Akdim, M.^1 ; Benmar, A.^2 ; Sbai, N.E.S.^3 ; Jabrane, R.^1

Department of Earth Sciences, Laboratory of Georesources and Environment, Faculty of Science and Technology of Fez, BP.2202 Road, Immouzzer, Fez, Morocco^1

Department of Genie Civil, Laboratory LOMC UMR CNRS, University Havre, 75 rue Bellot, Le Havre

76600, France^2

Department Electrical Engineering, Signals and Systems Laboratory Component (USL), Faculty of Science and Technology of Fez, BP.2202 Road, Immouzzer, Fez, Morocco^3

关键词: Geological substrates;    Geotechnical tests;    High-tech applications;    Industrial requirements;    Mechanical resistance;    Mineralogical analysis;    Physico-chemical characterization;    Scientific researches;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/186/1/012009/pdf
DOI  :  10.1088/1757-899X/186/1/012009

来源: IOP

【 摘 要 】

The marl's minerals are abundant untreated material in several areas worldwide. They are often under-valued for human use. However, due to demands of the society in terms of sustainability and energy saving, the valuation of these resources to develop new materials, most environmentally friendly has become a concern both scientific and industrial aims. Ceramics are the growing research to obtain materials with good chemical stability and good hot properties [1]. The balance between these properties and industrial requirements allowed clay materials uses at craft departure (pottery, tile), to progress towards high-tech applications such as electrical and thermal insulation, electric candle, sound insulation [2]. The behavior of the doping (Al2O3), which has more scientific research interest, has been a renewed interest since 1980 [3] with the emergence of alumina very high purity. Miocene marl is one of the widespread geological substrates in Fez-Taza vicinity (Central Morocco). In this study we proceed by a physicochemical characterization of the marl after doping with metal oxides, by various analytical techniques, namely the X-ray fluorescence, the mineralogical analysis and geotechnical test. The doping of these marl was conducted by solid oxides of Al2O3at different percentages (5%, 10% and 15%). The results of chemical analysis showed the Al2O3increase during doping. So, the mineralogical analysis of doped clays shows peaks' increases for kaolin. The marl doped acquired the property of their good plasticity and good mechanical resistance compared to crass marl.