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<p>The growing emphasis on environmental sustainability has promoted the use of agricultural residues, including banana stem and fiber, as reinforcements in construction materials. This study investigates the development of banana stem and fiber-reinforced gypsum composites through a cost-effective, additive-free process aimed at enhancing the sustainability of building materials. By varying fiber proportions, we obtained composites with improved mechanical and acoustic properties, reduced water absorption, and increased thermal conductivity. The banana fiber-reinforced composite exhibited higher tensile and flexural strength (up to 143% and 57%, respectively) and enhanced moisture resistance. Water absorption was reduced by approximately 12.28% with the addition of 10% banana fiber compared to pure gypsum. An increase in thermal conductivity was recorded, and a maximum sound absorption coefficient of 0.58 was obtained for the gypsum/banana fiber composite, particularly between 2500 and 4000&#xa0;Hz. Thus, through this investigation, we aimed to demonstrate the potential of agricultural co-products as reinforcements for conventionally used gypsum to develop high-performance, sustainable, and futuristic materials for use in the commercial arena as green-building components.</p> Graphical abstract <p></p>

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Comparative study of sustainable banana stem and fiber as reinforcements for the development of high-performance gypsum composites as green building materials

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年12月10日

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  • Vijaykumar Guna,
  • Sohini Chakraborty,
  • G. R. Arpitha

摘要

The growing emphasis on environmental sustainability has promoted the use of agricultural residues, including banana stem and fiber, as reinforcements in construction materials. This study investigates the development of banana stem and fiber-reinforced gypsum composites through a cost-effective, additive-free process aimed at enhancing the sustainability of building materials. By varying fiber proportions, we obtained composites with improved mechanical and acoustic properties, reduced water absorption, and increased thermal conductivity. The banana fiber-reinforced composite exhibited higher tensile and flexural strength (up to 143% and 57%, respectively) and enhanced moisture resistance. Water absorption was reduced by approximately 12.28% with the addition of 10% banana fiber compared to pure gypsum. An increase in thermal conductivity was recorded, and a maximum sound absorption coefficient of 0.58 was obtained for the gypsum/banana fiber composite, particularly between 2500 and 4000 Hz. Thus, through this investigation, we aimed to demonstrate the potential of agricultural co-products as reinforcements for conventionally used gypsum to develop high-performance, sustainable, and futuristic materials for use in the commercial arena as green-building components.

Graphical abstract