MECHANICAL PROPERTIES OF ABACA FIBER REINFORCED POLYMER SHEET AS SUSTAINABLE GREEN STRENGTHENING MATERIAL

S Fahri^[1]*, Fakhruddin³, R Djamaluddin², R Irmawaty³, H Usman⁴, and N A Mawaddah⁴

¹Civil Engineering Department, Hasanuddin University, Indonesia.

²Civil Engineering Department, Hasanuddin University, Indonesia.

³Civil Engineering Department, Hasanuddin University, Indonesia.

⁴Civil Engineering Department, Hasanuddin University, Indonesia.

^[1]1* Corresponding author’s email: [email protected]

DOI: https://doi.org/10.20885/icsbe.vol2.art4

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.

Keywords: Abaca Fiber, Glass Fiber, Tensile Strength, Strengthening Material

References

• ACI Committee. ACI 440.2R-08.Guide for the Design and Construction of Externally Bonded FRP System for Strengthening Concrete Structures. USA.Farmington Hills, 2008.
• Adeniyi, George Adewale., Damilola Victoria Onifade, Joshua O. Ighalo.A Review of Coir Fiber Reindorced Polymer Composites. Composite Part B. Elsevier, 2019.
• D 3039, Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials, American Society for Testing and Material, 2012.
• Cai M, Takagi M., Nakagaito AN., Li Y., and Waterhouse GIN. Effect of alkali treatment on interfacial bonding in abaca fiber-reinforced composites. Composite: Part A 90 (2016), 589-597.
• Dedi, Setiawan. Karakterisasi Serat Abaca Sebagai Alternatif Material Penguat Komposit Ramah Lingkungan. INDEPT, Vol. 4. No.1, 2015.
• Munawir, Ali. Natural Fiber-Reinforced Polymer Composites. Proc. Pakistan Acad. Sel. 44(2):129-144-2007.
• Abaca (Musa textilis Nee).Potensi, pola pengembangan dan Masalahnya. Warta Penelitian dan Pengembangan Tanaman Industri, Vol. 5 No.3, 1999.
• SNI – 2847 – 2019, Persyaratan Beton Struktural untuk Bangunan dan Penjelasan. Jakarta: Badan Standarisasi Nasional, 2019.
• Vijayalakshmi, K., C.Y.K. Neeraja, A. Kavitha and J. Hayavadana. Abaca fibre. Trans. Eng. Sci., 2: 16-19, 2014.