Study of physical and mechanical applications on ceramics of the lateritic and alluvial clayey mixtures of the Yaoundé region (Cameroon) - Université de Limoges Accéder directement au contenu
Article Dans Une Revue Construction and Building Materials Année : 2012

Study of physical and mechanical applications on ceramics of the lateritic and alluvial clayey mixtures of the Yaoundé region (Cameroon)

Résumé

Ceramic products were prepared by mixing lateritic and alluvial clayey materials of Yaoundé (Cameroon) in the humid tropical region, with 20, 50 and 80 wt.% of alluvial clay respectively in lateritic clay. Samples were grounded and sieved and powders obtained were shaped by uniaxial pressing of wet granules and fired under low temperatures between 350 and 1050 °C. Open porosity, bulk density and flexural strength were the principal properties characterised. Results indicates that a maximum of 80 wt.% of alluvial clayey material must be added to lateritic clays of Yaoundé, to obtain weakly porous ceramics and to attain the bulk density ranging from 1.56 to 1.97 g/m3 and a flexural strength of 6–19.85 MPa would be equivalent alluvial clay ceramics. But ceramics with lesser amount of alluvial clayey materials also have interesting flexural strengths in the range of 5–16 MPa, thus higher than porous lateritic clay ceramics.

Domaines

Matériaux

Dates et versions

hal-01116952 , version 1 (16-02-2015)

Identifiants

Citer

G.F. Ngon Ngon, R. Yongue Fouateu, D.L. Bitom, P. Bilong, Gisèle Laure Lecomte-Nana. Study of physical and mechanical applications on ceramics of the lateritic and alluvial clayey mixtures of the Yaoundé region (Cameroon). Construction and Building Materials, 2012, 31, pp.294-299. ⟨10.1016/j.conbuildmat.2011.12.108⟩. ⟨hal-01116952⟩
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