Study of Design of a Penetrable Asphalt pavement for the management of run-off water

Abstract

Water is a crucial resource for sustaining life on Earth. Currently, one third of the global population is facing water scarcity, and this situation is expected to worsen in the future. Unless we develop innovative water conservation techniques and technologies, it is estimated that two thirds of the world's population will experience water scarcity. Penetrable asphalt pavement is one such technology that can help manage water effectively. The design of Penetrable asphalt pavement differs from that of regular pavement as it has a Penetrable structure that enables water to seep through the pavement and recharge the groundwater table. Penetrable asphalt pavement has numerous advantages, such as reducing surface runoff, noise reduction, improved skid resistance, and increased surface reflectivity, which can enhance the performance and safety characteristics of the road. The air void content of the asphalt mix is a critical parameter that determines the design and performance of Penetrable asphalt pavement. This study aims to develop an effective design for the three layers of Penetrable asphalt pavement, including the surface layer, filter/choker layer, and reservoir layer. The surface layer is designed using the Marshall Mix design methodology, considering Indian climatic conditions. The performance testing will include drain-down susceptibility, cantabro susceptibility, moisture-induced damage susceptibility, indirect tensile strength testing, dynamic creep testing, skid measurement, and permeability testing, to design Penetrable asphalt pavement. The study will involve laboratory tests, such as Marshall stability test, indirect tensile strength test, and moisture damage susceptibility test, to evaluate the performance of the asphalt mixes.