Patent ID: 8173241

Claim:
A composite system, comprising: at least one core geocell layer infilled with an infill material; and at least two outer layers, which are a base layer and a capping layer, the base layer and the capping layer having greater tensile strength than the core geocell layer; the at least one core geocell layer being stacked between the base layer and the capping layer; wherein the base layer and capping layer are independently selected from the group consisting of a geocell infilled with a high quality material, a fiber reinforced concrete slab, a fiber reinforced polymer sheet, a metal sheet, a fiber reinforced polymeric foam, a fiber reinforced ceramic foam, high quality material reinforced by a geogrid or geotextile, and a geocell filled with concrete or a concrete mixture with particulate material; and the infill material of the at least one core geocell layer is a low quality material having an internal angle of friction of 25° or less, a permeability of less than 10 −4 cm/sec, and comprising particles, of which 50% by weight or more have an average diameter of less than 75 μm.