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<p>Sustainable development has emerged as a global priority following the adoption of the United Nations Sustainable Development Goals (SDGs). As one of the largest contributors to resource consumption and carbon emissions, the construction sector faces increasing pressure to adopt environmentally responsible practices. Among various sustainable construction strategies, extending the service life of existing structures through rehabilitation offers significant environmental and economic benefits by minimizing material consumption and reducing demolition-related waste. This study evaluates suitable fibre-reinforced polymer (FRP) laminate materials for the rehabilitation of cold-formed steel (CFS) plates, a lightweight structural material prone to local and distortional buckling. Four FRP alternatives carbon (CFRP), glass (GFRP), aramid (AFRP), and basalt (BFRP) were assessed against technical, economic, and sustainability criteria. A multi-criteria decision-making (MCDM) framework based on the Decision-Making Trial and Evaluation Laboratory (DEMATEL) method was employed to analyze the influence of each criterion and determine the most appropriate strengthening option. The results indicate that while all FRP laminates can enhance the service life of CFS members, glass-FRP (GFRP) emerges as the most favourable alternative due to its balanced mechanical performance, cost efficiency, and sustainability characteristics. These findings support informed material selection for sustainable structural rehabilitation and provide decision-makers with a systematic evaluation approach. Future studies may extend this research by incorporating additional reinforcement materials, performance variables, and field-based validation studies.</p>

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Numerical analysis on life cycle extension by selecting laminates for achieving sustainable development in construction

  • 期刊论文

  • 发表日期：

    2026年1月22日

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  • R. Anuradha,
  • S. Kavitha

摘要

Sustainable development has emerged as a global priority following the adoption of the United Nations Sustainable Development Goals (SDGs). As one of the largest contributors to resource consumption and carbon emissions, the construction sector faces increasing pressure to adopt environmentally responsible practices. Among various sustainable construction strategies, extending the service life of existing structures through rehabilitation offers significant environmental and economic benefits by minimizing material consumption and reducing demolition-related waste. This study evaluates suitable fibre-reinforced polymer (FRP) laminate materials for the rehabilitation of cold-formed steel (CFS) plates, a lightweight structural material prone to local and distortional buckling. Four FRP alternatives carbon (CFRP), glass (GFRP), aramid (AFRP), and basalt (BFRP) were assessed against technical, economic, and sustainability criteria. A multi-criteria decision-making (MCDM) framework based on the Decision-Making Trial and Evaluation Laboratory (DEMATEL) method was employed to analyze the influence of each criterion and determine the most appropriate strengthening option. The results indicate that while all FRP laminates can enhance the service life of CFS members, glass-FRP (GFRP) emerges as the most favourable alternative due to its balanced mechanical performance, cost efficiency, and sustainability characteristics. These findings support informed material selection for sustainable structural rehabilitation and provide decision-makers with a systematic evaluation approach. Future studies may extend this research by incorporating additional reinforcement materials, performance variables, and field-based validation studies.