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Plastic waste has emerged as one of the most critical environmental challenges of the modern era, with millions of tons generated annually worldwide. Most plastics are non-biodegradable, persisting in the environment for hundreds of years and causing ecological and health hazards. At the same time, the civil engineering sector continues to face challenges in stabilizing weak soils, particularly expansive clays and black cotton soils, which pose difficulties for infrastructure development due to their low strength and high swelling potential. Researchers have recently proposed the use of waste plastics as soil stabilizers, offering a sustainable solution that addresses both waste management and geotechnical problems. This review paper consolidates findings from multiple experimental studies on the use of polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), Plastic fibers, Plastic bottles and plastic covers in soil stabilization. The review discusses methods of plastic incorporation, laboratory test outcomes, and improvements in engineering properties, environmental benefits, and challenges. The results highlight that waste plastics can substantially enhance strength parameters such as unconfined compressive strength (UCS) and California Bearing Ratio (CBR), reduce swelling behavior, and provide a cost-effective alternative to conventional stabilizers like cement and lime. However, the technique requires further field-scale research and standardization before large-scale application.
Keywords:
Soil stabilization, Plastic waste, Polyethylene terephthalate (PET), Expansive soil, Plastic fibre, California Bearing Ratio (CBR), Sustainable construction.
Cite Article:
"A REVIEW ON – SOIL STABILIZATION USING WASTE PLASTIC MATERIALS", International Journal for Research Trends and Innovation (www.ijrti.org), ISSN:2455-2631, Vol.10, Issue 9, page no.a325-a330, September-2025, Available :http://www.ijrti.org/papers/IJRTI2509040.pdf
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ISSN:
2456-3315 | IMPACT FACTOR: 8.14 Calculated By Google Scholar| ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 8.14 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator