COLLAPSIBILITY POTENTIALS OF CLAY SOIL FROM TALATA MAFARA, ZAMFARA

ABSTRACT This study investigates the collapsibility potential of clay soils from Talata Mafara, Zamfara State, Nigeria, focusing on the factors that influence this property and its implications for civil engineering and land use. Collapsible soils pose significant risks to structures and infrastructure, particularly in regions prone to moisture fluctuations. Through field sampling and laboratory analysis, including tests for moisture content, density, and mineral composition, the research evaluates the physical and engineering properties of the clay soils in the area. The findings reveal that the clay from Talata Mafara exhibits significant variability in collapsibility, primarily influenced by moisture content, soil structure, and mineralogy. Expansive clays such as montmorillonite were identified as prevalent in the region, contributing to increased swelling and shrinkage potential. Additionally, the study highlights the critical role of external loads, seasonal precipitation patterns, and vegetation cover in exacerbating or mitigating collapsibility risks. Recommendations for effective management strategies are provided, including the need for appropriate foundation design and soil stabilization techniques to enhance soil stability. This research contributes valuable insights into the challenges posed by collapsible clay soils in Talata Mafara, emphasizing the importance of understanding local soil behavior in planning and development to reduce risks associated with soil collapsibility. Contents