Abstract

Today, FRP system is one of the most widely used methods of structural repair and strengthening but the price is relatively expensive. Therefore, it is necessary to develop FRP materials generated from natural fibers that have the potential for high tensile strength, environmentally friendly, and lower costs. In this study, Abaca fiber (Musa textilis) derived from Abaca banana is used as the constituent material of Abaca Fiber Reinforced Polymer Sheet (Abaca FRP Sheet), which will be used as strengthening materials of structural elements. Tensile strength testing was performed as the preliminary test to determine the mechanical properties of Abaca FRP Sheet. Abaca FRP Sheet with and without NaOH treatment was a test variation. The results of the tests were compared to commercial GFRP sheets. ASTM D3039/D3039M-14 Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials is referenced in the test specimens. Alkali treatment changes the structure and visual observation of the abaca fiber. Immersion of abaca fibers in 0.5% NaOH solutions for 30 minutes increased the tensile strength, Young’s modulus (GPa) and Strain at break as compared to the untreated abaca fibers.

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