Engineered Soil

A Solid Base

Cement-Based Engineered Soil technology is used to stabilize the soil on a work site where it is not solid enough to safely support a building or roadway. Portland cement is blended with soil (sometimes including aggregate) and water and then compacted. The resulting mix, known as soil cement provides a secure and stable base for construction. It is also used for flood control structures.

What is an engineered soil?

Engineered soil-cement was first used in 1935 to improve the roadbed for State Highway 41 near Johnsonville, South Carolina. Since that time, portland cement has been used to stabilize soils and aggregates for pavement applications on thousands of miles of roadway all over the world. After more than 70 years, collective experience has demonstrated that different kinds of engineered soil-cement mixtures can be tailored to specific pavement applications. However, the basics always remain the same: soil-cement is simply portland cement blended with soil and/or aggregate, and water and compacted for use in a pavement structure. There is no secret ingredient or proprietary formula that makes soil-cement work. Although sharing a similar chemical process, soil-cement differs from conventional portland cement concrete in the consistency of the material, quantity of cement required, overall construction procedures, function and strength requirements. The figure below illustrates how soil-cement compares to other cement-based pavement materials.

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Watch our video on Cement-Based Solutions for Engineered Soils.