Design of Flexible Pavement as per IRC:37-2018 and using IIT - Pave

Transportation plays a crucial role in the overall development of a country. Roads are the primary means of transportation. Flexible pavement is chosen over cement concrete roads as they have the great dominance that these can be strengthened and improved in stages with the growth in traffic. The failure of bitumen pavement is because of the fatigue cracking and rutting deformation. the project aims to design flexible pavement with the help of IRC:37-2018 guidelines and using IIT - PAVE software to determine the stress and strains values at a critical location at different layers of pavement. The design of flexible pavement mainly depends on the strength of the sub-grade soil and the traffic load. The design follows various procedures like the acquisition of data related to the traffic and sub-grade soil CBR values, traffic is examined on the basis of Equivalent Standard Axle Load (ESAL) and here the standard axle is defined as a single axle dual wheel with a load of 80 KN. Then selecting the various layer combinations while keeping the top surface of bituminous concrete the same for all the trials and changing the composition of base and sub-base layer suggested by IRC:37-2018. The different base and sub-base compositions like Granular Base, Granular Sub-base, cementitious Sub-base, and bitumen emulsion treated RAP layers are selected along with their design thickness and resilient modulus. The pavement is designed for rutting and fatigue life and examined by IIT - Pave later on. Also, perpetual pavement designs are opted out for some of the chosen layer combinations.