One of humanity's oddest features is that it uses a tremendous number of resources, even non-renewable ones, while leaving indications of pollution in its wake. The most important environmental threat associated with its production is not the depletion of non-renewable raw resources, but rather the environmental effects of its extraction, which include massive deforestation and topsoil degradation. As a result, new and inventive construction materials or substitute materials are required to address this issue. The usage of natural fibre honeycomb sandwich structure (NFHSS) composite material as an alternative building material has various advantages over standard building materials, including decreased weight, increased strength, and durability, improved thermal and acoustic insulation, and more design flexibility. This research analysis the flexural strength of the NFHSS to be used as potential flooring panel or slab as an alternative building material. Following the flexural strength analysis, a fractography study has been conducted in order to identify the failure mode of the NFHSS. ASTM D7249 was used to execute the flexural strength of the material on a Universal Tester Machine. The maximum deflection that the material can withstand before failing is 0.5mm at a force of 4.52kN. The stiffness of this material was determined to be 2.26 kN/mm, and it was classified as ductile. This study's findings support the idea that weak interfacial bonding causes fibre and matrix breakdown are the main causes of the material failure.
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