Problem of Expansive Soil for Construction of Structures on Expansive Soil in India: A Review

Expansive soils are problematic for construction due to their shrink-swell behavior, which causes significant structural damage to foundations, pavements, and other civil structures. In India, regions covered by black cotton soil pose challenges for builders, as these soils undergo considerable volume changes with seasonal moisture variations. This review discusses the distribution, properties, and challenges associated with expansive soils in India. The paper also explores conventional and innovative stabilization techniques used to mitigate the risks posed by expansive soils, with a focus on sustainable solutions. Future research directions are also suggested to address the persistent challenges of building on expansive soils.

  Keywords: Nanomaterials, concrete structures, nano-silica, nano-TiO₂