GEOTECHNICAL PROPERTIES AND GRAIN SIZE ANALYSIS OF CLAY

ABSTRACT

Clay soils are ubiquitous in the Earth's crust and are of significant importance in various engineering and environmental applications. Understanding their geotechnical behavior and grain size distribution is crucial for designing safe and efficient infrastructure projects, as well as for assessing their environmental impact. This study begins by presenting a thorough review of the fundamental properties of clay soils, including their mineral composition, plasticity, and moisture content. Special attention is given to the role of clay minerals such as kaolinite, montmorillonite, and illite in influencing these properties. The grain size analysis of clay samples collected from diverse geographical locations is conducted using standard laboratory techniques, including sieving and sedimentation. The results reveal a wide range of particle size distributions, with clay samples exhibiting predominantly fine-grained characteristics. Geotechnical testing, including Atterberg limits, shear strength, and compressibility, is performed to assess the engineering behavior of the clay samples. The study explores the correlation between grain size distribution and these geotechnical properties, providing insights into the factors influencing the mechanical behavior of clay soils. Furthermore, the study examines the geoenvironmental aspects of clay soils, focusing on their permeability, swelling potential, and susceptibility to landslides and settlement. These findings are essential for managing and mitigating the environmental risks associated with clay-rich areas.