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This study examines the mechanical behaviour of Fibre Reinforced Foam Concrete using both experimental and numerical methods. Foam concrete, valued for its lightweight and thermal insulation properties, was reinforced with steel fibers (0.5%, 0.75%, and 1%) and polypropylene fibers (0.1, 0.2, and 0.3%) to improve its tensile and impact resistance. Tests on short column specimens after 28 days of curing evaluated compressive, flexural, and split tensile strength, along with impact resistance. Results showed notable improvements in all mechanical properties with increasing fibre content, with a maximum strength gain of 31.66%. The FEM results aligned well with experimental findings, confirming that hybrid fibre reinforcement significantly enhances the ductility, toughness, and structural performance of foam concrete.

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The Experimental and Numerical Behaviour of Short Columns with Foam Concrete Using Steel Fibre and Polypropylene Fiber

  • 会议论文

  • 发表日期：

    2026年

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  • Geddam Harshavardhan,
  • H. Thiagu,
  • P. T. Ravichandran

摘要

This study examines the mechanical behaviour of Fibre Reinforced Foam Concrete using both experimental and numerical methods. Foam concrete, valued for its lightweight and thermal insulation properties, was reinforced with steel fibers (0.5%, 0.75%, and 1%) and polypropylene fibers (0.1, 0.2, and 0.3%) to improve its tensile and impact resistance. Tests on short column specimens after 28 days of curing evaluated compressive, flexural, and split tensile strength, along with impact resistance. Results showed notable improvements in all mechanical properties with increasing fibre content, with a maximum strength gain of 31.66%. The FEM results aligned well with experimental findings, confirming that hybrid fibre reinforcement significantly enhances the ductility, toughness, and structural performance of foam concrete.