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In this investigation, hybrid glass fiber-reinforced polymer (GFRP) and stainless steel wire mesh (SSWM) wraps are utilized to strengthen concrete cylinders. Corrosion resistance of strengthened concrete cylinders is evaluated experimentally under accelerated corrosion environment. A total of 21 concrete cylinders of 100 mm diameter and 200 mm height are prepared. A steel reinforcement bar having 8 mm diameter is embedded into cylinders at the center. Six different wrapping configurations are considered for strengthening of specimens including single and double layers. Performance of every specimen is compared with control specimens. Specimens are submerged in container with 3.5% NaCl solution. An anodic voltage of 60 V is continuously passed through the embedded reinforcement, while a cathodic current is passed through the stainless steel (SS) mesh. The specimens are exposed to corrosive environment for 28 days. Subsequently, performance of specimens is measured using half-cell potential (HCP). From the results, it is observed that specimens strengthened with two layers of GFRP exhibited highest corrosion resistance with lowest probability of corrosive activities at 28 days. The hybrid GFRP-SSWM wraps demonstrate better corrosion resistance compared to single layers of GFRP, single layers of SSWM, and double layers of SSWM specimens.

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Corrosion Resistance of Concrete Cylinders Strengthened with GFRP-SSWM Hybrid Wraps

  • 会议论文

  • 发表日期：

    2025年

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  • Vipul J. Kalyani,
  • Rinkesh V. Makawana,
  • Digesh D. Joshi,
  • Paresh V. Patel

摘要

In this investigation, hybrid glass fiber-reinforced polymer (GFRP) and stainless steel wire mesh (SSWM) wraps are utilized to strengthen concrete cylinders. Corrosion resistance of strengthened concrete cylinders is evaluated experimentally under accelerated corrosion environment. A total of 21 concrete cylinders of 100 mm diameter and 200 mm height are prepared. A steel reinforcement bar having 8 mm diameter is embedded into cylinders at the center. Six different wrapping configurations are considered for strengthening of specimens including single and double layers. Performance of every specimen is compared with control specimens. Specimens are submerged in container with 3.5% NaCl solution. An anodic voltage of 60 V is continuously passed through the embedded reinforcement, while a cathodic current is passed through the stainless steel (SS) mesh. The specimens are exposed to corrosive environment for 28 days. Subsequently, performance of specimens is measured using half-cell potential (HCP). From the results, it is observed that specimens strengthened with two layers of GFRP exhibited highest corrosion resistance with lowest probability of corrosive activities at 28 days. The hybrid GFRP-SSWM wraps demonstrate better corrosion resistance compared to single layers of GFRP, single layers of SSWM, and double layers of SSWM specimens.