Association Française de Normalisation (AFNOR) (1999) AFNOR NFX31-130. Soil Quality—Chemical Methods—Determination of Cationic Exchange Capacity (CEC) and Extractible Cations. Association Française de Normalisation, Paris.

has been cited by the following article:

• 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.