Utilization of RAP in Flexible Pavements

In modern days, life without the transportation industry is unimaginable. The roadways play a vital role in improving the economy of the country. As the roadways require necessary strengthening, rehabilitation or reconstruction depending on the severity of the damage caused to the structure during its service life, enormous quantity of RAP will be generated. It is essential to recycle and reuse the RAP generated in the pavement construction as it can help in preserving a large quantity of conventional construction materials. In this study, the strength characteristics of the bituminous mix with recycled binder or aggregates are compared with that of the conventional bituminous mix through laboratory investigation. The test result indicated that the recycled binder or aggregates can be effectively used in the bituminous mix satisfying the MoRT&H requirements up to a certain percentage. The recycled aggregates of up to 20% give maximum stability and ITS in comparison with conventional mix providing an eco-friendly, economical solution for the construction of pavements.