Influence of partial replacement of recycled plastic in hot mix asphalt

Use of plastic has percolated every nook and corner of the day to day life. It is predicted that the annual consumption of plastic wastes by 2025 will raise up to 230 million metric tonnes. Conventional disposal of land filling results in the soil and ground water contamination at the same time haza...

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Bibliographic Details
Main Authors: Jampani, Venkateswara Rao, Puppala, M. G. Raju, Pannem, Rama Mohan Rao, Ram, Eeshwara
Format: Conference Proceeding
Language:English
Subjects:
Asphalt mixes
Bitumens
Flexible pavements
Groundwater
Hazardous materials
Laboratory tests
Pavement construction
Polyethylene terephthalate
Polyvinyl chloride
Soil contamination
Soil water
Wastes
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Summary:Use of plastic has percolated every nook and corner of the day to day life. It is predicted that the annual consumption of plastic wastes by 2025 will raise up to 230 million metric tonnes. Conventional disposal of land filling results in the soil and ground water contamination at the same time hazardous substances may be released into the atmosphere in the process of disposal by incineration. Investigations suggesting that the plastic wastes can be effectively used in construction of flexible pavements. Present investigation was an attempt made to employ polyvinyl chloride (PVC) and polyethylene terephthalate (PET) plastic wastes in the preparation of hot mix asphalt (HMA) as an alternate partial replacement to bitumen. The percentage replacement of 60/70 bitumen grade with waste plastic is in the range of 2 to 10. For the modified bituminous mix laboratory tests were conducted and the mix performance was examined. It is observed that use of recycled PVC and PET plastics enhanced the Marshall’s stability values by 13 and 43 % at 6 and 8% replacements of bitumen weights. Percentage air voids also decreased with the increase in plastic content but flow values are increasing plastic content.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0144093