Published Paper Details:

Highway Pavement structures frequently fail to reach their intended design life due to factors such as poor construction material quality, inadequate compaction, suboptimal subgrade preparation, and overloading. Addressing this challenge, two primary methods are considered in pavement design to enhance longevity: increasing the thickness of pavement layers or augmenting the rigidity of these layers to diminish stress transmission to lower layers. The latter method, increasing layer strength and rigidity, has been identified as a more effective strategy for extending pavement life. This research focuses on the enhancement of the sub-base layer's strength and stiffness in a flexible pavement system through the application of geocell confinement. This project endeavours to investigate the multifaceted aspects of pavement engineering with a primary focus on the incorporation of geocells as a potential solution. The research contextualizes the performance of highway pavements, which largely depends on the strength and stiffness of their layers. With the construction phase often constrained by the availability and cost of aggregate materials, and considering the increasing scarcity of natural resources leading to project delays and cost escalations, the study underscores the necessity of exploring alternative materials and methods. By utilizing geocells, the research proposes a sustainable approach to pavement design, aiming to achieve enhanced pavement quality with reduced reliance on natural materials, thereby addressing both economic and environmental concerns in pavement construction and maintenance.