Enhancing Geopolymer Mortar with Coir and Pineapple Leaf Fibers through Various Curing Methods
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Abstract
This study investigates the properties of geopolymer mortar blended with natural biofibers (GMBf), focusing on density, water absorption, and compressive strength. Coir and pineapple leaf fibers were utilized to enhance the mechanical properties and sustainability of geopolymer composites. The results indicate that coir fibers, with higher lignin content, significantly improve compressive strength compared to pineapple leaf fibers. Microwave curing, employed to enhance GMBf properties, proved effective in increasing density and compressive strength while reducing water absorption by quickly removing moisture and promoting better matrix-fiber bonding. The findings align with the Thai Industrial Standard (TIS) No. 878-2566 for high-density cement-bonded particleboards, demonstrating that GMBf can be a viable, sustainable alternative in construction materials.
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