Case Studies on Geocell-Based Reinforced Roads, Railways and Ports

Abstract

Although geocells have been around for more than half a century, only recently were they adopted for heavy-duty infrastructure projects. This is due to a better understanding of geocell technology and to the creation of a novel polymeric alloy (Neoloy®) for geocells with high elastic modulus, low permanent deformation and high tensile strength. Case studies of Neoloy-based geocells used in airport, feeder road, railway and port projects demonstrate their suitability for long-term base reinforcement of heavy-duty pavements. These geocells show an improved engineering performance in terms of subgrade bearing capacity, layer stiffness and fatigue resistance beyond conventional geocells. The result is sustainable, stronger and stiffer pavements with an extended lifespan and lower maintenance.