Cellular confinement system (geocells) – 3D honeycombed polymer matrices formed by interconnected strips and infilled with compacted granular infill – have been used for to confine unbound aggregates in the base reinforcement of roads since the 1970’s.
Invented by the US Corps of Engineers the original “sand-grid” made from aluminum was intended for temporary roads for heavy military vehicles, in sandy or muddy beachheads. The commercialized version was quickly adapted for slope stabilization and earth retention walls applications.
Although geocells were made from a variety of geotextile fabrics and polymeric materials, High-Density Polyethylene (HDPE) became the most commonly used material. While HDPE is suitable for earth stabilization applications and unpaved roads, a stiffer, stronger and more durable material was required for long-term, heavy-duty applications with dynamic loading and large stresses, such as highways and railways.
That’s why PRS developed Neoloy®. The result of an extensive R&D program on continents, a novel polymeric alloy, called Neoloy was developed to propel the next generations of geocells and align them with the needs of the civil engineering industry.