TITLE:
Characterization of the Clay Collected in the Locality of Dolisie in Congo-Brazzaville
AUTHORS:
Rarahu Nursie Mboho Oba, Grace Mazel Ifo, Erman Eloge Nzaba Madila, Flora Zita Mpissi Diamouangana, Thierry Vila, Mozalin Paul Foutou, Joseph-Marie Moutou
KEYWORDS:
Clay, Characterization, Mineralogy, Valuation
JOURNAL NAME:
Journal of Minerals and Materials Characterization and Engineering,
Vol.10 No.2,
February
11,
2022
ABSTRACT: This work aims at the characterization of the clay of the locality of Dolisie for its valorization. The mineralogical analysis was determined by the following techniques (DRX, IR, ATG and ATD), chemical analysis was determined by ICP-AES, CEC was assessed by the Metson method. The geothermal properties were determined by the granulometric analysis of the clay soil and allowed us to position the Dolisie clay in the texture triangle, the landings limits obtained allowed to place the Dolisie clay in the abacus of Casagrande and on the workability map of Bain and Highy. Chemical analysis showed that silica alumina as well as iron oxides are the major constituents in Dolisie clay The mineralogical balance showed that kaolinite and illite have similar percentages which are (20.51%) kaolinite, (28.08) illites. This leads us to believe that kaolinite is not the dominant mineral and the IR spectrum shows that kaolinite is poorly crystallized.