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<p>Driven by the need for eco-friendly building materials, this study investigates rubber-fiber reinforced foam concrete panels (RFFCP) incorporating crumb rubber powder (CRP) and polypropylene fibers under low-cyclic loading. Pseudo-static tests on specimens with varied rubber particle sizes were conducted to examine failure modes, hysteretic behavior, bearing capacity, and strength and stiffness degradation. Results indicate that using 40 mesh CRP significantly enhances ultimate load-bearing capacity and energy dissipation, attributed to an optimized interfacial transition zone and improved crack resistance. Strength and stiffness degradation analyses confirm the long-term stability of the panels under cyclic loads, while strain measurements provide insights into stress distribution in steel reinforcement. These findings highlight the suitability of 40 mesh CRP for producing resilient foam concrete wall panels, thus contributing to sustainable construction practices. The study confirms the feasibility of integrating CRP into polypropylene fiber-foam concrete mixtures and provides guidance on material optimization for enhanced structural performance.</p>

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Lateral resistance performance of embedded wall panels fabricated by fiber-reinforced foam concrete filled with crumb rubber powders

  • 期刊论文

  • 发表日期：

    2025年7月6日

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  • Ou Geng,
  • Zhen Guo,
  • Yulong Zhang,
  • Fumin Li,
  • Limin Lu

摘要

Driven by the need for eco-friendly building materials, this study investigates rubber-fiber reinforced foam concrete panels (RFFCP) incorporating crumb rubber powder (CRP) and polypropylene fibers under low-cyclic loading. Pseudo-static tests on specimens with varied rubber particle sizes were conducted to examine failure modes, hysteretic behavior, bearing capacity, and strength and stiffness degradation. Results indicate that using 40 mesh CRP significantly enhances ultimate load-bearing capacity and energy dissipation, attributed to an optimized interfacial transition zone and improved crack resistance. Strength and stiffness degradation analyses confirm the long-term stability of the panels under cyclic loads, while strain measurements provide insights into stress distribution in steel reinforcement. These findings highlight the suitability of 40 mesh CRP for producing resilient foam concrete wall panels, thus contributing to sustainable construction practices. The study confirms the feasibility of integrating CRP into polypropylene fiber-foam concrete mixtures and provides guidance on material optimization for enhanced structural performance.