This work consisted in characterizing of calcined laterite and oyster shell powder based blended geopolymer binders. To do this, raw taken from Soa the city Yaoundé shells extracted Mouanko Sanaga-Maritime were initially air-dried, then dried at 105 °C, before being 500 °C 200 respectively for 2 hours. These samples subjected to preliminary studies, i.e. determination their chemical mineralogic...

This paper investigates the direct transformation of laterites (natural iron-rich aluminosilicates) to cementitious composites with principal mineral phases being Gismondine and Stratlingite. The effects particles size distribution cement content (2 8 wt%) on mechanical properties microstructure laterite-cement are assessed. Four grades granulometry various percentages fine coarse were consider...

Drinking water is one of the most valuable resources available to mankind. The presence of pathogens in drinking water is highly undesirable. Because of the Lateritic soil, the iron concentrations were high in ground water. High concentration of iron and other trace elements could restrict bacterial growth and modify their metabolic pattern as well. The bacterial growth rate reduced in the pres...

In this research, Effect of thermal treatment on beneficiation of low-grade laterite nickel by calcination-magnetic separation method was studied. In order to determine the components and elements of the sample, to recognize the main and minor minerals and their bond, and phase transformation caused by thermal treatment, Chemical analysis (XRF and ICP), microscopic studies and XRD analysis ...