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Use of Plastic Waste in Concrete : A Comprehensive Review on Strength of Concrete Mixture with Different Material
Summary
This review paper looks at how recycled plastic waste (like PET bottles) can be mixed into concrete for building construction, finding that the right amount can actually improve certain properties while reducing landfill waste. This matters because it offers a practical way to reuse plastic that would otherwise pollute the environment—though the paper focuses on construction benefits rather than directly studying whether this affects microplastic exposure or human health, so more research would be needed to confirm concrete made this way doesn't shed plastic particles over time.
The rapid increase in plastic waste has become a serious environmental concern due to its non-biodegradable nature and harmful impact on ecosystems. This study explores the utilization of plastic waste as a partial replacement material in concrete production, aiming to address both waste management and sustainable construction challenges. Various forms of plastic, such as polyethylene terephthalate (PET), polypropylene (PP), and polystyrene (PS), are incorporated into concrete either as aggregates, fibers, or fillers. The research examines the effects of plastic addition on the mechanical and durability properties of concrete, including compressive strength, tensile strength, workability, and resistance to environmental degradation. Results indicate that while excessive plastic content may reduce strength, an optimum percentage can enhance properties like ductility, crack resistance, and lightweight characteristics. Furthermore, the use of plastic waste in concrete reduces landfill burden, conserves natural resources, and contributes to eco-friendly construction practices. This study concludes that plastic-modified concrete can be a viable alternative in non-structural and certain structural applications, promoting sustainable development while mitigating environmental pollution.