geostabilzing constructs made from synthetic materials such as recycled tires and plastic polymers are provided in forms engineered to stabilize large structures such as buildings , roadways , runways , parking lots , dams , levees and waste containment facilities . methods and geostabilizers of the invention provide alternatives or complements to conventional uniform and non - uniform gradations of earthen materials thereby decreasing the amount of conventional materials needed to stabilize a large structure . stabilizers of the invention impart superior resistance to compressive forces and can be designed and manufactured with to possess defined properties such as permeability to the flow of gases or liquids , compressibility , shear strength , rigidity , frictional coefficients , compactability , density , and resistance to movement . embodiments of the present invention can be used in conjunction with various construction materials like pipe and culverts .