Partial Replacement of RCA and LDPE in Bituminous Pavement

Abstract

Bituminous concrete mix is a composite  material which is widely used for the construction of  flexible pavements, surfacing of roads and airports, various parking lots etc. It generally consists of bitumen which works as a binder material, coarse aggregates, fine  aggregates and filler materials which are generally mixed  together in right proportion and laid down in layers followed by the compaction. In this present age of  modernization and urbanization, construction is non  stoppable and the construction by demolishing of old  building has arisen a serious problem of treatment of  demolished waste. Similarly, the use of plastic in our day to-day life and its improper disposal is also creating serious environment pollution. So, there is big challenge in managing the demolished waste as well as the waste plastics.  In this project i.e. partial replacement of RCA and LDPE in  Bituminous concrete mix we have tried to replace the RCA  (25%) in Natural Aggregates and LDPE (2%, 4%, 6% and  8% respectively) in bitumen content for the improvement of the pavement characteristics satisfying both the strength criteria and the economic aspectsgiving emphasize to less  environment degradation and sustainability.