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This research work presents the structural responses of reinforced concrete (RC) slabs using high performance fiber-reinforced concrete (HPFRC) subjected to normal and elevated temperature. The HPFRC contained 1.0 vol% steel hooked fiber blended with 0.5 vol.% steel smooth fiber. The RC slab was designed with its thickness × width × span length of 50 × 200 × 450 mm3, and three 8-diameter reinforcing bars. Before experiment, the slabs were exposed to four different temperatures on the Celsius scale: 25 degrees (denoted Slab025), 300 degrees (denoted Slab300), and 450 degrees (denoted Slab450). For each temperature, two slabs were examined under three-point bending, then averaged in analyzing four engineering parameters: load-bearing capacity, defection capacity, energy absorption capacity and stiffness.

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Structural Responses of RC Slabs Using HPFRC Subjected to Normal and Elevated Temperature

  • 会议论文

  • 发表日期：

    2025年

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  • Huu-Nghia Nguyen,
  • Duy-Liem Nguyen,
  • Ngoc-Thanh Tran,
  • Huy-Viet Le

摘要

This research work presents the structural responses of reinforced concrete (RC) slabs using high performance fiber-reinforced concrete (HPFRC) subjected to normal and elevated temperature. The HPFRC contained 1.0 vol% steel hooked fiber blended with 0.5 vol.% steel smooth fiber. The RC slab was designed with its thickness × width × span length of 50 × 200 × 450 mm3, and three 8-diameter reinforcing bars. Before experiment, the slabs were exposed to four different temperatures on the Celsius scale: 25 degrees (denoted Slab025), 300 degrees (denoted Slab300), and 450 degrees (denoted Slab450). For each temperature, two slabs were examined under three-point bending, then averaged in analyzing four engineering parameters: load-bearing capacity, defection capacity, energy absorption capacity and stiffness.