EarthZyme® is a long-term solution for stabilizing roads that require continual maintenance due to wet weather and marginal road materials. EarthZyme® targets soils with high clay content by increasing density and providing enhanced stability. Additional benefits include reduced swell and permeability, and increased CBR values. EarthZyme-treated roads perform much better in wet conditions and require much less long-term maintenance. Because EarthZyme® can be used with marginal road materials such as clay, which are less expensive than typical road-base aggregates, roads built with EarthZyme can be built at significantly less cost than typical road stabilization or re-sheeting projects.