Article (Scientific journals)
Occurrences of kaolin in Koutaba (west Cameroon): Mineralogical and physicochemical characterization for use in ceramic products
Mefire, A. N.; Njoya, A.; Fouateu, R. Y. et al.
2015In Clay Minerals, 50 (5), p. 593-606
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Keywords :
Cameroon; Brick; Ceramic materials; Ceramic products; Clay minerals; Kaolin; Kaolinite; Mineralogy; Minerals; Particle size; Particle size analysis; Plasticity; Plasticity testing; Quartz; Thermodynamic properties; Thermogravimetric analysis; X ray diffraction; Chemical compositions; Geotechnical properties; Physico-chemical characterization; Plasticity indices; Representative sample; X ray fluorescence; Clay
Abstract :
[en] Thirty clay samples collected from three hills in Koutaba (west Cameroon) were characterized in order to evaluate their potential use as raw materials for ceramics. After preliminary mineralogical identification by X-ray diffraction, three representative samples from the three different hills, referred to hereafter as K1M, K2M and K3M, were selected for further investigation by X-ray fluorescence, plasticity, granularity and thermogravimetric analysis. The main clay minerals are kaolinite (32-51%) and illite (up to 12%). Additional major phases are quartz (32-52%), goethite (6-7%) and feldspars (0-4%). The chemical composition showed variable amounts of SiO2 (60-72%), Al2O3 (15-20%) and Fe2O3 (1-9%), in accordance with the quartz abundance in all of the samples studied. The particle-size distribution showed a large proportion of silty fraction (64-88%) with moderate sandy (9-19%) and clayey fractions ( < 5% for K2M, 12% for K1M and 20% for K3M). All of the clays showed moderate plasticity-index values (8-11%). Because of these characteristics, K1M and K3M may be suitable for use in common bricks and hollow ceramic products. Sieving or the addition of ball clays is recommended to increase the plasticity of sample K2M for use in common bricks. © 2016 by Walter de Gruyter Berlin/Boston 2016.
Research center :
UR Geology
Disciplines :
Earth sciences & physical geography
Author, co-author :
Mefire, A. N.;  Laboratory of Clays, Geochemistry and Sedimentary Environments, Department of Geology, University of Liège, Quartier Agora, 14 Allée du 6 Août, Bât. B18, Sart Tilman, Liège, Belgium, Laboratory of Applied Geology-Metallogeny, Department of Earth Sciences, University of Yaoundé i, P.O. Box. 812, Yaoundé, Cameroon
Njoya, A.;  Fine Arts Institute of Foumban, University of Dschang, P.O. Box 31, Foumban, Cameroon
Fouateu, R. Y.;  Laboratory of Applied Geology-Metallogeny, Department of Earth Sciences, University of Yaoundé i, P.O. Box. 812, Yaoundé, Cameroon
Mache, Jacques Richard;  Local Material Promotion Authority, P.O. Box, 2396, Yaoundé, Cameroon
Tapon, N. A.;  Architecture, Geology, Environment and Construction, Sart Tilman Chemin des Chevreuils (B52), University of Liège, Liège, Belgium
Nzeukou Nzeugang, Aubin ;  Local Material Promotion Authority, P.O. Box, 2396, Yaoundé, Cameroon
Chinje, U. M.;  Local Material Promotion Authority, P.O. Box, 2396, Yaoundé, Cameroon
Pilate, P.;  Belgian Ceramic Research Center, 4, Avenue Gouverneur Cornez, Mons, Belgium
Flament, P.;  Belgian Ceramic Research Center, 4, Avenue Gouverneur Cornez, Mons, Belgium
Siniapkine, S.;  Laboratory of Clays, Geochemistry and Sedimentary Environments, Department of Geology, University of Liège, Quartier Agora, 14 Allée du 6 Août, Bât. B18, Sart Tilman, Liège, Belgium
Ngono, A.;  Laboratory of Applied Geology-Metallogeny, Department of Earth Sciences, University of Yaoundé i, P.O. Box. 812, Yaoundé, Cameroon
Fagel, Nathalie  ;  Université de Liège - ULiège > Département de géologie > Argiles, géochimie et environnements sédimentaires
Language :
English
Title :
Occurrences of kaolin in Koutaba (west Cameroon): Mineralogical and physicochemical characterization for use in ceramic products
Publication date :
2015
Journal title :
Clay Minerals
ISSN :
0009-8558
Publisher :
Mineralogical Society
Volume :
50
Issue :
5
Pages :
593-606
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
ARES CCD - Académie de Recherche et d'Enseignement Supérieur. Coopération au Développement [BE]
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