Tensile Strength Performance of a Sustainable Concrete Produced Using Coconut Fibre


Authors : Ogunjiofor I. Emmanuel; Eke C. Prince; Okeke C. Sunday

Volume/Issue : Volume 9 - 2024, Issue 11 - November

Google Scholar : https://tinyurl.com/yc84k5ah

Scribd : https://tinyurl.com/mu74vyen

DOI : https://doi.org/10.38124/ijisrt/IJISRT24NOV1024

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Abstract : This research investigates the structural performance of micro-reinforced concrete utilizing coconut fiber as an eco-friendly reinforcement material. The objective was to understand how varying percentages of coconut fiber impact the workability, tensile strength, and compressive strength of concrete. The study involved a series of tests, including sieve analysis, slump tests, tensile strength tests, and compressive strength tests, to evaluate the mechanical properties of the fiber-reinforced concrete.The findings revealed that the addition of coconut fiber reduced workability, as shown by the slump test results. The control mix (0% fiber) recorded a slump value of 130 mm, while the mix containing 1.5% fiber had a significantly lower slump value of 20 mm. Tensile strength improved notably with the inclusion of fibers, with the 1.5% fiber mix achieving a peak tensile strength of 4.0 MPa at 28 days of curing. In contrast, compressive strength decreased as fiber content increased; the control mix had the highest compressive strength of 19.0 N/mm2 at 28 days, while the 1.5% fiber mix recorded a lower value of 8.45 N/mm2, primarily due to increased voids and fiber clumping.Despite the reduction in compressive strength, coconut fiber demonstrated potential as a sustainable reinforcement material, particularly for applications prioritizing tensile strength. The study suggests optimizing mix design to balance workability and performance, employing fiber treatment techniques to enhance bonding, and conducting further research on long-term durability.

Keywords : Coconut Fiber, Sustainable Concrete, Tensile Strength, Compressive Strength, Fiber-Reinforced Concrete.

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This research investigates the structural performance of micro-reinforced concrete utilizing coconut fiber as an eco-friendly reinforcement material. The objective was to understand how varying percentages of coconut fiber impact the workability, tensile strength, and compressive strength of concrete. The study involved a series of tests, including sieve analysis, slump tests, tensile strength tests, and compressive strength tests, to evaluate the mechanical properties of the fiber-reinforced concrete.The findings revealed that the addition of coconut fiber reduced workability, as shown by the slump test results. The control mix (0% fiber) recorded a slump value of 130 mm, while the mix containing 1.5% fiber had a significantly lower slump value of 20 mm. Tensile strength improved notably with the inclusion of fibers, with the 1.5% fiber mix achieving a peak tensile strength of 4.0 MPa at 28 days of curing. In contrast, compressive strength decreased as fiber content increased; the control mix had the highest compressive strength of 19.0 N/mm2 at 28 days, while the 1.5% fiber mix recorded a lower value of 8.45 N/mm2, primarily due to increased voids and fiber clumping.Despite the reduction in compressive strength, coconut fiber demonstrated potential as a sustainable reinforcement material, particularly for applications prioritizing tensile strength. The study suggests optimizing mix design to balance workability and performance, employing fiber treatment techniques to enhance bonding, and conducting further research on long-term durability.

Keywords : Coconut Fiber, Sustainable Concrete, Tensile Strength, Compressive Strength, Fiber-Reinforced Concrete.

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