An experimental investigation of abaca (Musa textilis nee) textile reinforced mortar in structural strengthening through concrete confinement

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ID: 285116
2024
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Abstract
The growing demand for infrastructure driven by population growth necessitates the adoption of sustainable construction practices to achieve net-zero carbon emissions by 2050. As part of this shift, there is an increasing focus on green solutions, particularly in the materials used for construction. Textile-reinforced mortar (TRM) has gained attention as an alternative to fiber-reinforced polymers (FRP) due to its cost-effectiveness, simplicity, and superior temperature resistance. However, conventional TRM systems rely on synthetic, non-biodegradable reinforcements such as carbon and glass. This study explores the potential of using residual abaca fibers, often discarded as waste, as a sustainable reinforcement alternative in TRM. Abaca fibers, known for their high tensile strength and durability, are treated with 5% sodium hydroxide (NaOH) to enhance interfacial bonding between the fibers and the cementitious matrix. By optimizing thickness (single-ply and double-ply) and grid spacings (10 mm, 15 mm, and 20 mm), the research evaluates the performance of abaca fibers in TRM systems for concrete confinement applications. The results indicate that double-ply twined abaca fibers with a 15x15 mm grid spacing achieved optimal tensile strength while minimizing elongation and mass per unit area. The one-layer TRM system exhibited a 35.40% increase in tensile strength. In comparison, the two-layer system demonstrated an 8.09% improvement in ultimate strain, highlighting the impact of textile configuration on the TRM system's mechanical properties. Furthermore, the TRM system significantly enhanced concrete confinement, with compressive strength increasing by 25.52% for the one-layer system and 51.32% for the two-layer system. The alkali treatment improved the interfacial bonding by removing impurities and increasing the fiber surface roughness, contributing to a more robust mechanical interlock. The study recommends developing an automated machine for abaca textile production, exploring the efficiency of single-ply textiles, and applying abaca-based TRM in real-world structural applications. This research promotes sustainability by integrating renewable, locally sourced materials into the construction industry.
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Authors Gregorio, Earl Gerald
Journal Malay Journal
Year 2024
DOI
DOI not found
URL
https://animorepository.dlsu.edu.ph/etdm_civ/47
Keywords Keywords not found

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