Abstract: The construction industry plays a major role in economic development, but it also consumes a large amount of natural resources and energy. Conventional construction materials such as cement, steel, and concrete require significant energy for production and contribute to environmental pollution. In recent years, researchers have focused on developing sustainable and energy efficient construction materials to reduce environmental impact. Natural fibres have emerged as an effective alternative due to their renewable nature, low cost, and environmentally friendly characteristics. Among various natural fibres, banana fibre is considered highly promising because it is widely available as agricultural waste in many tropical countries.

This research paper presents an experimental investigation of banana fibre as an energy efficient material for construction. The main objective of this study is to evaluate the potential of banana fibre in cement-based construction materials and examine its effect on mechanical and thermal properties. Banana fibres were extracted from banana plant stems and processed before being mixed with cement mortar in different proportions. Laboratory tests such as compressive strength tests, tensile strength tests, and thermal insulation tests were conducted to evaluate the performance of fibre reinforced materials.

This research focuses on the experimental investigation of an energy-efficient cavity wall using banana fibres as an insulation material. Two wall models were constructed for the experiment: a conventional solid wall model and a cavity wall model filled with banana fibres.

Keywords: Banana Fiber, Energy Efficient Materials, Cavity Wall, Thermal Insulation, Sustainable Construction, Heat Transfer

Downloads: | DOI: 10.17148/IARJSET.2026.13433