Development and Utilization of Structural Panel with Indian Almond Seed

Abstract: This study investigated the potential of processed Indian Almond (Terminalia catappa) seed shell particles, locally known as Talisay, as reinforcement for sustainable cement-based structural panels. Using an experimental developmental design, three panel formulations were developed by varying the proportions of ground Talisay seed shells and sand while maintaining a constant cement-to-water ratio. The panels underwent mechanical testing and qualitative evaluation by 30 industry professionals and construction practitioners. Results showed that all treatments exhibited a flexural strength of approximately 0.1 MPa. However, Treatment B, composed of equal proportions of Talisay seed shells and sand, demonstrated the highest performance with a peak load capacity of 857 N, compressive strength of 8.8 MPa, and low water absorption rate of 11.25%. Panel densities ranged from 1.34 to 1.41 g/cm³, classifying them as lightweight materials. Evaluators rated the panels as “Very Acceptable” and “Very Applicable” for interior wall and ceiling applications. The findings support the use of Talisay seed shells as eco-friendly construction materials.

Keywords: Indian Almond Seed shells, Talisay seed shells, Terminalia catappa, Structural Panel, sustainable building materials, lightweight composites.