TITLE:
Physicochemical Characterization and Valorization of Clay from Lobo and Ngoya in Cameroon Central Region
AUTHORS:
Nchare Mominou, Mache Jacque Richard, Sabo Ina Aicha
KEYWORDS:
Clay Material, Valorization, Refractory Bricks, Ceramics
JOURNAL NAME:
Open Journal of Inorganic Chemistry,
Vol.9 No.3,
June
20,
2019
ABSTRACT: Two samples clayed materials, LO and NG from central region in Cameroon
were characterized for their valorization in the manufacture of refractory
bricks and ceramics. In order to assess the technological properties of these
clays, cooking tests were carried out on the test specimens at different temperatures.
From particle size analysis, clayed materials studied have a spreading
particle size and their plasticity index is between 18 and 47. The mineralogical
study reveals the presence of Quartz, illite, kaolin, hematite and
feldspars. High level of silica content explains the sandy nature of these clays.
Linear shrinkage and density increase with temperature while compressive
strength decreases with temperature. Analyses performed on the ceramic specimens
after firing show that clay materials studied are suitable for the manufacture
of refractory bricks.