The utilization of plastics as construction raw material represents an innovative approach to reusing waste plastic in an environmentally friendly and cost-effective manner. Plastic waste, in various forms such as fibers, granules, flakes, or melted, can potentially be blended with concrete or bitumen for structures and roadways. This plastic-blended concrete offers characteristics like lightweight, corrosion resistance, chemical resistance, lower production costs, and increased durability. However, investigations suggest that while increased plastic content can enhance concrete's compressive strength, it may reduce tensile and flexural strength. Additionally, the density of plastic-blended products tends to be lower compared to conventional methods. HDPE (High-Density Polyethylene) is commonly used as fibers in concrete, enhancing properties such as decreased shrinkage and improved ductility, flexural toughness, and tensile fatigue strength. LDPE (Low-Density Polyethylene) is utilized in LDPE bonded sand blocks and asphalt concrete, enhancing stiffness and rutting resistance. Waste PET (Poly Ethylene Terephthalate) bottles can be recycled into fibers and added to concrete mixes, improving tensile strength and crack resistance. PP (Polypropylene) fibers added to concrete improve split tensile and flexural strength. Overall, these findings highlight the diverse applications and benefits of integrating plastics into construction materials, including enhanced durability and performance, reduced environmental impact, and cost savings. Addressing challenges in plastic waste management requires a multifaceted approach involving the development of alternative materials, reduced plastic production and consumption, and promoting responsible consumer behavior.

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From Trash to Treasure: The Rise of Plastic Construction

  • Pushpa Tuppad,
  • Sinchana S. Gowda,
  • N. Srivatsa,
  • H. D. Rakshitha,
  • M Apoorva,
  • N. Y. Rakshitha

摘要

The utilization of plastics as construction raw material represents an innovative approach to reusing waste plastic in an environmentally friendly and cost-effective manner. Plastic waste, in various forms such as fibers, granules, flakes, or melted, can potentially be blended with concrete or bitumen for structures and roadways. This plastic-blended concrete offers characteristics like lightweight, corrosion resistance, chemical resistance, lower production costs, and increased durability. However, investigations suggest that while increased plastic content can enhance concrete's compressive strength, it may reduce tensile and flexural strength. Additionally, the density of plastic-blended products tends to be lower compared to conventional methods. HDPE (High-Density Polyethylene) is commonly used as fibers in concrete, enhancing properties such as decreased shrinkage and improved ductility, flexural toughness, and tensile fatigue strength. LDPE (Low-Density Polyethylene) is utilized in LDPE bonded sand blocks and asphalt concrete, enhancing stiffness and rutting resistance. Waste PET (Poly Ethylene Terephthalate) bottles can be recycled into fibers and added to concrete mixes, improving tensile strength and crack resistance. PP (Polypropylene) fibers added to concrete improve split tensile and flexural strength. Overall, these findings highlight the diverse applications and benefits of integrating plastics into construction materials, including enhanced durability and performance, reduced environmental impact, and cost savings. Addressing challenges in plastic waste management requires a multifaceted approach involving the development of alternative materials, reduced plastic production and consumption, and promoting responsible consumer behavior.