Estimation of Fatigue and Rutting Life Using Falling Weight Deflectometer of Flexible Pavement Road in Hilly Terrain

Abstract

Abstract: Establishing the qualities of the pavement material and its structural capability is the most important step in establishing effective pavement maintenance and management techniques. This can be done by looking at how the pavement reacts to the applied load. The Falling Weight Deflectometer (FWD) is used in this study to assess the performance of a road stretch of the Federal Route in the State of Uttarakhand by measuring deflection in response to the weight applied at various sites along the highway. FWD is used to assess the pavement's response to a static load. Using the obtained deflection data, the KGPBACK is used to back-calculate the simulated layers of the pavement. Data is gathered then integrated into the IITPAVE software to create a pavement overlaying design. Flexible pavement is modelled as an elastic multilayer structure to see how bituminous overlay maintenance affected the distress models, and all 4 distress (cracking, rutting, rut depth, and roughness) are shown to be reduced. As a result, the research article provides a methodology that administrators can use to anticipate when and how much financing is needed to preserve and maintain the Indian Highway Road network.