Evaluation of Bituminous Concrete Mixture Using Reclaimed Asphalt Pavement

The huge amount of reclaimed asphalt pavement (RAP) obtained from damaged or abandoned pavement. Bituminous pavement is a mix of coarse aggregate, fine aggregates, mineral filler and bitumen. Due to repetition of wheel load and edging effect bituminous concrete tense to wear and tear. Using RAP in pavement construction has now become most common practice in many countries. These materials have been used not only proved to be economically but also environmentally sound. Mixing RAP in fresh materials has been favored over fresh material in the light of the increasing cost of asphalt, scarcity of quality aggregate, scarcity of asphalt and pressuring need to preserve the environment. An experimental investigation is carried out to evaluate the possible application of RAP in bituminous pavement design and to find out its design characteristics. Therefore, it is necessary to replace aggregates with RAP with the percentage of (30%, 50%, 60% and 70%) and carried out different test on bitumen & aggregate to finding out the difference between normal aggregates and RAP to increase the strength of road pavement. It is observed from test result that 60% of the RAP material replaced with natural aggregates mix shows good stability. Hence up to 60% of RAP material can be replaced to the BC grade.