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EXPERIMENTAL INVESTIGATION ON THE BEHAVIOUR OF FLEXURAL STRENGTHENING OF BEAMS USING BFRP SHEET

  • Unique Paper ID: 167333
  • Volume: 11
  • Issue: 3
  • PageNo: 1332-1336
  • Abstract:
  • Fiber Reinforced Plastic (FRP) materials, including wraps, laminates, and sheets, are gaining significant attention in civil engineering, particularly for the repair and strengthening of reinforced concrete (RC) structures. These materials offer several advantages over traditional methods, such as their high strength-to-weight ratio, corrosion resistance, and ease of application. Basalt Fiber Reinforced Polymer (BFRP) is emerging as a highly effective material for the repair and strengthening of structures that have deteriorated or become structurally weak over time. BFRP offers several advantages, making it a viable alternative to traditional repair methods. Experimental investigations on the cube, cylinder & flexural RC beams strengthened using basalt fiber unidirectional cloth are carried out. Concrete beams externally reinforced with epoxy-bonded cloth underwent failure testing using a symmetrical one-point concentrated static loading system. Nine beams were cast, out of which conventional beams were tested using general procedure. After the testing process, the beams are to be strengthened using a BFRP sheet in flexure. The strengthening of the beam is done with different amounts and configurations of the BFRP sheet. Bonding between the BFRP sheet and pre-damaged beams is done by using epoxy resin adhesive. After strengthening was made to beams, flexural tests were conducted for ultimate load-carrying capacity. Experimental data on the load, deflection, and failure modes of each of the beams were obtained. The detailed procedure and application of the BFRP sheet for strengthening RC beams are also included. The effect of several BFRP layers and their orientation on the ultimate load-carrying capacity and failure mode of the beams are investigated. A comparative study was made between the control beams and strengthened beams. From the result, it has been seen that the BFRP sheet can be used as a strengthening material for damaged beams when the current results of specimens by conventional method and lamination method are to be tabulated. The graphical representation for each specimen is done using the above methods.
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Cite This Article

  • ISSN: 2349-6002
  • Volume: 11
  • Issue: 3
  • PageNo: 1332-1336

EXPERIMENTAL INVESTIGATION ON THE BEHAVIOUR OF FLEXURAL STRENGTHENING OF BEAMS USING BFRP SHEET

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