Journal of Transportation Engineering and Its Applications ISSN: 3107-4499 (Online)

Authors: B.Bhanu Prasad, M.Kiran Reddy, D.Prathyusha

Abstract: The present investigation was carried out to propose using waste plastic and recycled aggregates (RCA) and fly ash in a bituminous mix of flexible pavements. To improve their performance and give way for safe disposal and plastic wastes and construction demolition waste (CDW) to provide a solution to the threat of environmental pollution. The Marshall method of mix design was adopted using 60/70 grade bitumen to find the optimum bitumen content. Marshall specimens were prepared with bitumen content varying from 4% to 6%, increasing weight of aggregate by 0.5% and with waste plastic content of 0%, 6%, 8%, 10%, 12%, 14%, and 16% by weight of optimum bitumen content. This study's main objective investigates the performance of bituminous concrete made with conventional bitumen and waste plastic bitumen using fly ash as a filler material. The comparison was also made by testing the physical properties of recycled aggregates and natural aggregates (NA). It was found that there was a considerable improvement in the properties of aggregates and bituminous mix, leading to provide longer life and better pavement performance. The use of waste plastic and recycled aggregates (RCA) in bituminous concrete mix contributes to the construction of green roads and solves the problem of its safe disposal.