The influence of clay minerals on soil plasticity (Case study on weathering of claystone)

Abstract

Administratively the scope of research belongs to area of  Banawa District, Palu City, Central Sulawesi Province. The research title is the influence of clay minerals on soil plasticity, (Case study on weathering of claystone). The purpose and intent of this research is to examine the clay mineral content that will affect the magnitude of the plasticity of the soil based on the type of clay minerals contained in the soil from weathered claystone. The method used in this research is taking soil samples in the field and processing the data using software or laboratory equipment. To determine the type of minerals contained in the research sample, the method used is the analysis of X-Ray Diffraction (XRD) and Atterberg method. From the analysis, it is concluded that the mineral characteristics greatly affect the plasticity index of the soil, especially the presence of clay minerals, especially the presence of illite minerals.