A COMPARISON STUDY ON THE USE OF JUTE FIBER REINFORCED POLYMER TO STRENGTHEN RCC BEAMS IN FLEXURE

Authors

  • Md. Jahidul Islam Highway Engineering Department, BCL Associates Limited, Dhaka, Bangladesh.
  • Md. Tawseef Hossain Hazrat Shahjalal International Airport Expansion Project (HSIAE), Consumark Limited, Dhaka, Bangladesh.
  • Saeed Mahmud Department of Civil Engineering, Ahsanullah University of Science and Technology, Dhaka, Bangladesh.

DOI:

https://doi.org/10.11113/aej.v14.21577

Keywords:

Universal Testing Machine, Steel Fiber-Reinforced Polymer, Carbon Fiber-Reinforced Polymer, Glass Fiber-Reinforced Concrete, Epoxy

Abstract

This study aims to evaluate the efficacy of woven jute fibers in strengthening RC beams and provides a thorough description of RC beam rehabilitation using a natural fiber composite. Three beams were cast and tested with Center Point Loading configuration: one beam acted as a control specimen, while the other two beams were wrapped with heat-treated woven jute fiber using a U-wrapping technique. The experimental specimens, with dimensions of 36" x 6" x 6" (914.4 mm x 152.4mm x 152.4mm x 152.4mm), underwent static load tests. Load, mid-span deflection, and cracking patterns were meticulously measured and analyzed for the control and retrofitted beams. The retrofitting of concrete beams with U-wrapped Jute Fiber Reinforced Polymer (JFRP) layers yielded significant improvements. When compared to the control beam, a single layer of JFRP (1.13 mm) raised the load-to-length ratio by 7.57%, while a two-layer JFRP (2.26 mm) increased it by 22.72%. The retrofitted specimens also exhibited increased deflection and strain compared to the control beam, indicating improved strength and stiffness. Moreover, the shift in crack pattern from flexural to shear cracks after U-wrapping highlights the enhanced ability of the beam to withstand shear forces, extending its performance period.

Author Biographies

  • Md. Jahidul Islam, Highway Engineering Department, BCL Associates Limited, Dhaka, Bangladesh.

    In my role as a Civil Engineer, I specialized in geotechnical engineering and contributed to highway improvement projects in Bangladesh. My key responsibilities encompassed conducting comprehensive investigations, revising technical specifications, delivering training on ground improvement techniques, and actively participating in material and soil-related updates. Furthermore, I played a crucial role in providing recommendations to enhance construction and maintenance practices.

  • Md. Tawseef Hossain , Hazrat Shahjalal International Airport Expansion Project (HSIAE), Consumark Limited, Dhaka, Bangladesh.

    Civil engineer, Project management and materials division.

  • Saeed Mahmud , Department of Civil Engineering, Ahsanullah University of Science and Technology, Dhaka, Bangladesh.

    Bachelor of Science , Department of Civil Engineering. 

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Published

2024-11-30

Issue

Vol. 14 No. 4: December 2024

Section

Articles

How to Cite

A COMPARISON STUDY ON THE USE OF JUTE FIBER REINFORCED POLYMER TO STRENGTHEN RCC BEAMS IN FLEXURE. (2024). ASEAN Engineering Journal, 14(4), 179-187. https://doi.org/10.11113/aej.v14.21577