SURFACE SOIL STABILIZATION BASICS

Soil stabilization can be defined by the function of the improved soils. Those functions include surface stabilization, slope stabilization, and deep stabilization. This article covers surface stabilization, which is defined as the hardening of surface soils with various binders such as lime, cement, fly ash and asphalt. Such hardening increases the load bearing strengths of soils and permits them to carry the weight of a new facility (highway, airfield, etc.). It also provides a firm work platform for the contractor during construction. Included in the article is information on the use of lime, cement, fly ash, asphalt, polymers, and geotextiles for stabilization. Construction methods are also described.