Soil Stabilization

Soil stabilization is the permanent physical and chemical alteration of soils to enhance their physical properties. Stabilization can increase the shear strength of a soil and/or control the shrink-swell properties of a soil and as a result, improve the load bearing capacity of a sub-grade. Stabilization can be achieved with the use of a variety of chemical additives such as lime, fly-ash, cement, as well as by-products such as lime-kiln dust and cement-kiln dust.

Benefits of Soil Stabilization:

  • Increased shear strength
  • Reduction in plasticity
  • Lower permeability
  • Reduction of pavement thickness
  • Elimination of removal, haul-off, and disposal of unstable material
  • Improved accessibility within project sites
  • Economic advantage over removing and replacing unstable material