Correct Answer - Option 3 : Clays
Concept:
Lime stabilization of Soil:
- It is the process of stabilizing soils by adding lime to reactive soils to generate long-term strength gain through a pozzolanic reaction.
- It is used to improve the strength, stiffness, and durability of fine-grained clayey soils.
- The addition of lime to soils produces a maximum density under a higher optimum moisture content than in the untreated soil, thus leads to flocculated or aggregated larger particle groups which are fairly stable.
- An increase in lime content causes a considerable reduction in swelling pressure and thus an increase in shrinkage limit and plastic limit. Subsequently, it decreases the liquid limit.
- Adding lime to soils increases soil resilient modulus shear strength substantially.
