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eISSN: 2581-9615 || CODEN: WJARAI || Impact Factor 8.2 ||  CrossRef DOI

Research and review articles are invited for publication in April 2026 (Volume 30, Issue 1) Submit manuscript

Reclamation and recycling of plastic waste in road construction: Design of a bituminous mix from plastic waste

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  • Reclamation and recycling of plastic waste in road construction: Design of a bituminous mix from plastic waste

Makhaly Ba *, Sokhna Rokhayatou Samb and Coumba Mbengue

Department of Geotechnical Engineering, University Iba Der Thiam, Thies, Senegal.
 
Research Article
World Journal of Advanced Research and Reviews, 2024, 21(01), 416-423
Article DOI: 10.30574/wjarr.2024.21.1.2641
DOI url: https://doi.org/10.30574/wjarr.2024.21.1.2641
 
Received on 23 November 2023; revised on 01 January 2024; accepted on 03 January 2024
 
The purpose of this work is the recovery and recycling of plastic waste as additives in asphalt concrete (AC) in order to make a comparison with the conventional mix. The plastic waste used in this study is recycled plastic bottles made of Polyethylene Terephthalate (PET). The objectives also include the study of the effect of the addition of different percentages of shredded plastic on the properties of the asphalt mix and the comparison with the properties of the conventional mix. The results indicated that recycled plastics can be conveniently used as an additive for bituminous mixes to participate in the sustainable management of plastic waste and the improvement of the performance of the mix. After carrying out a comparative study between the classic mix and the mix modified with recycled plastic, we obtained an optimal bitumen content of 5.33 % to be mixed with an optimal quantity of plastic of 6 % to obtain a mix with better quality. Subsequently, we proposed to carry out a study trying to reduce the quantity of bitumen while maintaining the optimum quantity of plastic (6 %) in order to evaluate the percentage of bitumen that could be substituted with plastic to approach values obtained at the optimum at the level of conventional asphalt concrete. With 6 % of plastic, it is possible to reduce the optimal amount of bitumen from 5.33 % to 5 %, leading to a reduction in the cost per km of road.
 
Asphalt concrete; Recycling; Plastic waste; Polyethylene Terephthalate; Road
 
https://wjarr.com/sites/default/files/fulltext_pdf/WJARR-2023-2641.pdf

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Makhaly Ba, Sokhna Rokhayatou Samb and Coumba Mbengue. Reclamation and recycling of plastic waste in road construction: Design of a bituminous mix from plastic waste. World Journal of Advanced Research and Reviews, 2024, 21(1), 416-423. Article DOI: https://doi.org/10.30574/wjarr.2024.21.1.2641

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