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<p>The profusion of plastic waste creates a major environmental sustainability issue as it pollutes the ecosystem. Thus, effective plastic waste management is a global concern. Plastic waste disposal is hazardous due to its longer degradation period. Hence, reuse through recycling these wastes as green construction materials in the form of aggregates can potentially reduce the environmental burden. The current study involves the production of plastic-supplemented conventional concrete (PSCC), a lightweight concrete (LWC) through the use of both high-density polyethylene (HDPE) and polyethylene terephthalate (PET) plastics as coarse aggregates, replacing natural coarse aggregate (NCA) in varying percentages. A comparative study between HDPE along with PET-based PSCC is administered with an establishment of optimal plastic aggregate replacement levels concerning both the fresh and hardened (physical, mechanical, durability, and microstructure) concrete properties promoting sustainable construction practice. The mentioned detailed test analysis converges to an optimal replacement level of 10% HDPE and 5% PET against NCA, yielding superior workable and durable concrete leading to effective solid waste management.</p>

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Production of durable conventional concrete using recycled HDPE and PET plastic coarse aggregate

  • 期刊论文

  • 发表日期：

    2025年2月4日

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  • Ashutosh Nanda,
  • Soumyaranjan Panda,
  • Saubhagya Kumar Panigrahi

摘要

The profusion of plastic waste creates a major environmental sustainability issue as it pollutes the ecosystem. Thus, effective plastic waste management is a global concern. Plastic waste disposal is hazardous due to its longer degradation period. Hence, reuse through recycling these wastes as green construction materials in the form of aggregates can potentially reduce the environmental burden. The current study involves the production of plastic-supplemented conventional concrete (PSCC), a lightweight concrete (LWC) through the use of both high-density polyethylene (HDPE) and polyethylene terephthalate (PET) plastics as coarse aggregates, replacing natural coarse aggregate (NCA) in varying percentages. A comparative study between HDPE along with PET-based PSCC is administered with an establishment of optimal plastic aggregate replacement levels concerning both the fresh and hardened (physical, mechanical, durability, and microstructure) concrete properties promoting sustainable construction practice. The mentioned detailed test analysis converges to an optimal replacement level of 10% HDPE and 5% PET against NCA, yielding superior workable and durable concrete leading to effective solid waste management.