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Mineralogyc And Physico-Chemical Characteristics Of Bentonite Clay From Sabah Malaysia

Sonny Irawan, Ariffin Samsuri

This paper presents the results of laboratory work on mineralogy, physicochemical characteristics the bentonite clay from two areas of Sabah, Malaysia, namely Andrassy and Mansuli. A standard wyoming bentonite had been used as a potential comparison. This study included mineralogical, chemical composition, cation exchange composition, specific surface area and atterberg limit. The results from mineralogy investigation showed that Sabah bentonite less montmorillonite mineral content than wyoming. Based on chemical composition, Sabah bentonite has ferrous iron content higher than wyoming bentonite. Cation exchange capacity (CEC) and specific surface area values of Sabah bentonite is lower than wyoming bentonite while from atterbeg limit Sabah bentonite is closed to the Camontmorillonite.