Characterization of the Activity, Mineralogy and Correlations between the Properties of Clayey Soils

The activity is related to the mineralogy and geological history of clays. Soils with same value liquidity limit or plasticity index can have very different characteristics depending on amount type clay minerals. methylene blue characterizes clays reflects surface activity. Ten inactive soils contain minerals (kaolinite, illite), these absorb little water. Two swelling normal are composed illite, Montmorillonite). relationships between clayey properties, their activities defined. correlations obtained linear fit exponential sigmoidal fits. a coefficient determination R2 (0.859 - 0.999) be used characterize predict certain parameters fine-grained as function content.