Lime Slurry-Target Distribution Center

Dry Lime-Building Pad Dry Up

Cement-Palo Verde Water Storage Pond

Lime Slurry-Riverside Industrial Park

Cement-Goodyear Airport


Cement-Maricopa County Roads

Stabilization of Sub-Base Soil

Soil stabilization is the process of preparing sub-base soils to provide a higher load bearing capacity so they can better withstand heavy traffic stresses. Stabilization involves pulverizing and mixing the soil thoroughly with binders, so that after proper compaction and curing the soil is more dense (stable) and provides the stronger base desired.

Proper stabilization of the sub-base soil, followed by appropriate compaction, is a major contribution to the integrity and longevity of the finished product.

Stability and load bearing capacity of a soil layer depends on two factors—the internal friction and cohesion of soil particles. The higher the internal friction, the better the cohesion, the better the load bearing capability of the soil layer. Internal friction is influenced by particle shape, particle size (gradation) and compaction. Cohesion depends on the soil type; i.e. clay, sand, muck, etc. If the friction is too low, or cohesion inadequate, traffic will deform the soil layer which, in turn, affects the finished project. Substandard friction and/or cohesion of the soil must, therefore be improved. This is accomplished by adding a chemical binder to the soil to cause the particles to meet the desired properties of friction and cohesion.

The advantages of soil stabilization with binders are:
  • Allows the use of otherwise unsuitable in-place soils.
  • Eliminates the need and expense of excavating and removing unsuitable soils, since no soil exchange is necessary.
  • Eliminates the cost of transporting and placing new, more costly materials at the job site.
  • Reduces cost by the “mixing in place” process.
  • Reduces overall construction time, thereby enabling parking lots, roads and job sites to be open to traffic more quickly.
The following is a list of some of the binders that Asphalt Busters has had experience working with:
  • Cement
  • Lime—dry and slurry
  • Flyash
  • Bituminous Binders
  • Liquid non-traditional stabilizers