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Characterization and technological properties of two clay soils in Republic of Congo

Author Affiliations

  • 1Laboratory of Applied Mineral Chemistry (LACMA), Faculty of Science and Technology, Marien Ngouabi University, Congo and Ecole Normale Supérieure, Marien Ngouabi University, Congo
  • 2Laboratory of Applied Mineral Chemistry (LACMA), Faculty of Science and Technology, Marien Ngouabi University, Congo
  • 3Research Group on Physicochemical and Mineralogical Properties of Materials, Faculty of Sci. and Tech., Marien Ngouabi University, Congo
  • 4Laboratory of Applied Mineral Chemistry (LACMA), Faculty of Science and Technology, Marien Ngouabi University, Congo

Res. J. Material Sci., Volume 7, Issue (1), Pages 1-10, January,16 (2019)

Abstract

The determination of the physicochemical and mineralogical characteristics as well as the technological properties of two clays used by peasants in the making of fired clay bricks in the Madingou and Makonongo localities respectively in the Bouenza and Pool Departments of Congo-Brazzaville, is the general objective of this work. Particle size distribution and Atterberg limits were measured. X-rays diffraction supplemented by chemical analysis was used to determine the mineralogy of these soils. The water absorption, firing shrinkage and the flexural strength of the bricks made with these two types of soil and baked at different temperatures were measured. The MAD sample is of silty clay texture while the MAKO sample is sandy clay loam texture. These textures have made possible to manufacture fired clay products with these soils as clay. These soils are considered as moderately plastic inorganic clays. These materials have optimum molding properties and the estimated shrinkage is relatively small. X-ray diffraction and chemical analysis indicated that MAD is a kaolinitic clay containing small proportion of illite while MAKO is an illitico-kaolinitic clay with kaolinitic predominance. The iron oxide content associated with the presence of titanium oxide ensures a colored firing. The ternary diagrams taking into account the mineralogical composition and the chemical composition leads us to consider that these soils will give colored bodies. The water absorption obtained (15.53% for MAD and 14.43% for MAKO) indicates that the sherds obtained at 1150°C are porous and favorable for the production of structural ceramics (bricks, tiles, floor coverings, drainage pipes). Since MAD has not reached the optimal sintering temperature at 1150°C, it is possible to find other uses with MAD depending on the technological parameters corresponding to its optimal sintering temperature. With regard to the technological properties it is possible to manufacture ceramic tiles type red monoporosa, red birapida and majolica by making additions of materials containing limestone.

References

  1. Konta J. (1995)., Clay and man: Clay raw materials in the service of man., Applied Clay Science, 10(4), 275-335.
  2. Wetshondo Osomba D. (2012)., Caractérisation et valorisation des matériaux argileux de la Province de Kinshasa (RD Congo)., Thèse de docteur ingénieur, Université de Liège (Belgique), 1-341.
  3. Freyburg S. and Schwarz A. (2007)., Influence of the clay type on the pore structure of structural ceramics., ECERS, 27(2-3), 1727-1733.
  4. Denis B. and Rieffel J. (1975)., Notice explicative N° 60; Carte Pédologique du Congo à 1/200,000., feuille Madingou; ORSTOM: Office de la Recherche Scientifique et Technique Outre-Mer; Paris, 1-152.
  5. Moutou J.M., Bibila Mafoumba C., Matini L., Ngoro Elenga F. and Kouhounina L. (2018)., Characterization and evaluation of the adsorption capacity of dichromate ions by a clay soil of Impfondo., Research Journal of Chemical Sciences, 8(4), 1-14.
  6. NF EN 196-1 (2006)., Méthodes d'essais des ciments - Partie 1 : déterminations des résistances mécaniques., Norme française, AFNOR.
  7. ASTM C 20-00 (2010)., Standard Test Methods for Apparent Porosity, Water Absorption, Apparent Specific Gravity, and Bulk Density of Burned Refractory Brick and Shapes by Boiling Water1.,
  8. Soil Science Division Staff (2017)., Soil survey manual., Ditzler C., Scheffe K. and Monger H.C., USDA Handbook 18. Government Printing Office Washington D.C., 1-639.
  9. Dondi M., Fabbri B. and Guarini G. (1998)., Grain-size distribution of Italian raw materials for building clay products: a reappraisal of the Winkler diagram., Clay Minerals, 33(3), 435-442. https://doi.org/10.1180/000985598545732
  10. Shepard F.P. (1954)., Nomenclature based on sand-silt-clay ratios., Journal of Sedimentary Petrology, 24(3), 151-158.
  11. Moutou J.M., Foutou P.M., Matini L., Banzouzi Samba V., Diamouangana Mpissi Z.F. and Loubaki R. (2018)., Characterization and Evaluation of the Potential Uses of Mouyondzi Clay., Journal of Minerals and Materials Characterization and Engineering, 6, 119-138.
  12. Brown G. and Brindley G.W. (1980)., Crystal structures of clay minerals and their X-ray identification., London: Mineralogical Society, 5, 305-360.
  13. Decarreau A. (1990)., Matériaux argileux : Structure, propriétés et applications., Société française de Minéralogie et de Cristallographie et Groupe Français des Argiles, 1-586.
  14. Plançon A., Giese R.F. and Snyder R. (1988)., The Hinckley index for kaolinites., Clay Minerals, 23(3), 249-260.
  15. Mitchell James K. and Kenichi S. (1993)., Fundamentals of soil behavior., Third Edition John Wiley & Sons, 1-560.
  16. Fabbri B. and Fiori C. (1985)., Clays and complementary raw materials for stoneware tiles., Miner. Petrogr. Acta, 29-A, 535-545.
  17. Skempton A.W. (1953)., The colloidal "activity" of clays., Proceedings of the 3rd International Conference of Soil Mechanics and Foundation Engineering, 1, 57-60.
  18. Hosterman J.W. (1969)., Clay deposits of Spokane County Washington., Geological Survey Bulletin 1270, 1-96. https://doi.org/10.3133/b1270
  19. Fiori C., Fabbri B., Donati G. and Venturi I. (1989)., Mineralogical composition of the clay bodies used in the Italian Tile Industry., Applied Clay Science, 4(5-6), 461-473.
  20. Haurine F. (2015)., Caractérisation d, Sciences de la Terre, Thèse de Doctorat, École nationale supérieure des mines de Paris, 1-327.
  21. Souza G.P., Sanchez R. and de Holanda J.N.F. (2002)., Characteristics and physical-mechanical properties of fired kaolinitic materials., Cerâmica, 48(306), 102-107.
  22. Romero M., Andrés A., Alonso R., Viguri J. and Rincon J. Ma. (2008)., Sintering behaviour of ceramic bodies from contaminated marine sediments., Ceramics International, 34(8), 1917-1924.
  23. Correia S.L., Hotza D., Segadães A.M. (2004)., Effect of Raw Materials on Linear Shrinkage., Am. Ceram. Soc. Bulletin, 83(8), 9101-9108.
  24. Calata J.N. (2005)., Densification behavior of ceramic and crystallizable glass materials constrained on a rigid substrate., Ph.D. Thesis Virginia Polytechnic Institute, 1-167.