Sustainability and limitation of Plastic Modified Bituminous Interlocked Paving Block: A Supervision

Abstract

Without the use of a binder, Interlocking paving blocks locked each other and built a stable pavement structure which suitable for sidewalk, footpath and non-traffic area etc. that reduces the construction time and cost both. A huge amount of natural and industrial materials such as cement, bitumen, aggregate and other additives are employed in pavement construction and maintenance at the same time on the other hand plastic waste generation increases day by day which becomes an eyesore. It has been suggested by the researchers that plastic can sustain 4500 years without its degradation. 6 billion tones of plastic has been produced from 1950 to 2018 out which 12% and 9% have been incinerated and recycled but 79% left as untreated. This paper provides an guidance that waste plastic improves the rheological property of binder as well as the physical-mechanical property of interlocking pavement block if it combine with Bitumen. Through this investigation, an attempt also made to identify and suggest a possible use of plastic in the paving block so that dumping and land filling problem of waste plastic can reduce.