Paper Title :Recycled Waste Plastics Modified Asphalt Concrete in Flexible Pavement for Infrastructure

Author :A.A. Htwe, S.F. Wong, S.H. Oh, T.Y. Leo, J. Cheng, B.K. Tay

Article Citation :A.A. Htwe ,S.F. Wong ,S.H. Oh ,T.Y. Leo ,J. Cheng ,B.K. Tay , (2017 ) " Recycled Waste Plastics Modified Asphalt Concrete in Flexible Pavement for Infrastructure " , International Journal of Advances in Mechanical and Civil Engineering (IJAMCE) , pp. 62-64, Volume-4,Issue-3

Abstract : The constituent materials of the hybrid mixes evaluated in this project comprised the PEN 60/70 bituminous binder, granite aggregate, waste plastics of different types such LDPE, HDPE, PP, PS and mix plastics. The hybrid mixes followed the LTA SMA gradation but with 10% LDPE, 10% PP, 25% PS and 2% HDPE plastics substitution of the Pen 60/70 bitumen and incorporating. The study focused mainly on the investigation of the penetration of bitumen blends with plastics. It was found that bitumen blends with10% LDPE, 10% PP, 25% PS and 2% HDPE can give satisfactory performance grade. It is noted that the binder contents of the specimens were also determined using the comparison between different blends of waste plastics with conventional bitumen. The Marshall mix design method resulted in an chosen binder content of 6.5%. The study focused mainly on the investigation of the stability and flow of SMA with waste plastics. It was found that a hybrid SMA mix with 10% LDPE, 10% PP, 25% PS and 2% HDPE plastics substitution of the Pen 60/70 bitumen can give satisfactory mixture strength. The effects of several factors were also investigated. Index Terms- Flexible pavement, Stone Mastic Asphalt (SMA), Conventional bitumen (Pen 60/70), Polymer Modified Bitumen (PMB), Waste plastics, Aggregate, Performance grade of bitumen, Penetration, Marshall Stability, Marshall Flow, Mixture strength of asphalt concrete.

Type : Research paper

Published : Volume-4,Issue-3

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