Scholarlink

The integration of waste plastic into road pavements presents a compelling solution to the significant challenge of plastic waste management in India. This study focuses on investigating how the addition of high-density polyethylene (HDPE) and low-density polyethylene (LDPE) sourced from discarded plastic bottles and bags, impacts the mechanical behavior of asphalt mixtures, with a particular emphasis on identifying the optimal blend proportions. Various compositions of LDPE and HDPE modified bitumen (as 4, 6, and 8% by weight of bitumen) are synthesized. The main motive is to evaluate and compare the impact of these polymers on the physical properties of asphalt mixtures at varying concentrations, aiming to improve the performance and sustainability of flexible pavements. To comprehensively understand the mechanical behavior of asphalt mixtures, the properties of both LDPE and HDPE are meticulously examined. Laboratory experiments are conducted such as penetration tests, softening point tests, and ductility tests to analyze how LDPE and HDPE affect factors such as stability, strength, durability, adhesion, and environmental sustainability. The research outcomes demonstrate notable enhancements in asphalt properties following modification with LDPE and HDPE including increased resistance to permanent deformation and improved stability. Optimal improvements are observed with LDPE at 8% composition and with HDPE at 8% composition. This contributes to well-informed decision-making in pavement engineering and promotes sustainable infrastructure development.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Comparative Study on Partial Replacement of Bitumen with Low-Density Polyethylene and High-Density Polyethylene in Flexible Pavement

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • Surbhi Rodge,
  • Sagar K. Sonawane,
  • Rajshekhar G. Rathod

摘要

The integration of waste plastic into road pavements presents a compelling solution to the significant challenge of plastic waste management in India. This study focuses on investigating how the addition of high-density polyethylene (HDPE) and low-density polyethylene (LDPE) sourced from discarded plastic bottles and bags, impacts the mechanical behavior of asphalt mixtures, with a particular emphasis on identifying the optimal blend proportions. Various compositions of LDPE and HDPE modified bitumen (as 4, 6, and 8% by weight of bitumen) are synthesized. The main motive is to evaluate and compare the impact of these polymers on the physical properties of asphalt mixtures at varying concentrations, aiming to improve the performance and sustainability of flexible pavements. To comprehensively understand the mechanical behavior of asphalt mixtures, the properties of both LDPE and HDPE are meticulously examined. Laboratory experiments are conducted such as penetration tests, softening point tests, and ductility tests to analyze how LDPE and HDPE affect factors such as stability, strength, durability, adhesion, and environmental sustainability. The research outcomes demonstrate notable enhancements in asphalt properties following modification with LDPE and HDPE including increased resistance to permanent deformation and improved stability. Optimal improvements are observed with LDPE at 8% composition and with HDPE at 8% composition. This contributes to well-informed decision-making in pavement engineering and promotes sustainable infrastructure development.