Utilization of Plastic Waste as a Partial Substitute for Aggregate in Concrete Mixes

  • Unique Paper ID: 179885
  • Volume: 11
  • Issue: 12
  • PageNo: 8847-8851
  • Abstract:
  • The increasing accumulation of plastic waste particularly polyethylene terephthalate (PET), poses a significant environmental threat due to its non-biodegradable nature and the growing demand for landfill space. This study explores the feasibility of utilizing plastic waste as a partial substitute for natural aggregates in concrete mixes, offering a sustainable alternative for both waste management and construction practices. Recycled plastic aggregates were incorporated in varying proportions to partially replace coarse aggregates in concrete. The effects on workability, density, compressive strength and durability of the modified concrete were evaluated through a series of laboratory tests. Results indicate that while plastic aggregates reduce the overall weight of concrete and offer resistance to crushing, higher replacement levels may adversely affect strength properties. However, at optimized substitution rates, plastic-modified concrete can meet standard performance requirements for certain structural and non-structural applications. This approach not only contributes to environmental conservation by reducing plastic waste but also offers a viable material alternative in the construction industry.

Copyright & License

Copyright © 2025 Authors retain the copyright of this article. This article is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

BibTeX

@article{179885,
        author = {Nihal Ahmad and Deepak Aggarwal and Rahul Kumar},
        title = {Utilization of Plastic Waste as a Partial Substitute for Aggregate in Concrete Mixes},
        journal = {International Journal of Innovative Research in Technology},
        year = {2025},
        volume = {11},
        number = {12},
        pages = {8847-8851},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=179885},
        abstract = {The increasing accumulation of plastic waste particularly polyethylene terephthalate (PET), poses a significant environmental threat due to its non-biodegradable nature and the growing demand for landfill space. This study explores the feasibility of utilizing plastic waste as a partial substitute for natural aggregates in concrete mixes, offering a sustainable alternative for both waste management and construction practices. Recycled plastic aggregates were incorporated in varying proportions to partially replace coarse aggregates in concrete. The effects on workability, density, compressive strength and durability of the modified concrete were evaluated through a series of laboratory tests. Results indicate that while plastic aggregates reduce the overall weight of concrete and offer resistance to crushing, higher replacement levels may adversely affect strength properties. However, at optimized substitution rates, plastic-modified concrete can meet standard performance requirements for certain structural and non-structural applications. This approach not only contributes to environmental conservation by reducing plastic waste but also offers a viable material alternative in the construction industry.},
        keywords = {Waste Plastic, polyethylene terephthalate, Plastiphalt, recycle plastics, polypropylene, polyethylene, concrete mixture.},
        month = {May},
        }

Cite This Article

  • ISSN: 2349-6002
  • Volume: 11
  • Issue: 12
  • PageNo: 8847-8851

Utilization of Plastic Waste as a Partial Substitute for Aggregate in Concrete Mixes

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