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August 6, 2026FibersOpen Access

Comparative Experimental Investigation of Reinforced Concrete Beams with Steel and Polypropylene Fiber Reinforcement

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Authors

ABAbel A. BelayBialystok University of TechnologyRGRobert GrygoBialystok University of Technology

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Implication

Comparative experimental investigation assesses load capacity and crack control in fiber-reinforced beams, suggesting optimal fiber selection.

Key Points

  • This research aims to compare the mechanical performance of reinforced concrete beams with steel and polypropylene fiber reinforcements.
  • Conducted compressive strength tests on 21 cube specimens and shrinkage measurements on 21 prism specimens.
  • Examined seven reinforced concrete beams with varying fiber volume fractions of 1.0%, 1.5%, and 2.0%.
  • Performed bending tests to measure ultimate load capacity, crack behavior, and load-deflection response.
  • Polypropylene fibers reduced maximum crack width by 93% and shrinkage strain by up to 50% compared to reference concrete.
  • Steel-fiber-reinforced beams exhibited an increase of up to 22% in ultimate load relative to the reference beam.
  • Steel fibers showed greater effectiveness in enhancing load-carrying capacity and displacement ductility.

Cite This Study

Belay et al. (2026) studied this question.

synapsesocial.com/papers/6a743783764cddc9499d4ee9https://doi.org/10.3390/fib14080089
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Also Consider

Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Experimental study to compare the strength of concrete with different amounts of polypropylene fibers at high temperatures2024 · 17 citations
  2. 2Mechanical Properties of Hybrid Steel-Polypropylene Fiber Reinforced High Strength Concrete Exposed to Various Temperatures2022 · 49 citations
  3. 3Comparative performance analysis of ground slabs and beams reinforced with macro polypropylene fibre, steel fibre, and steel mesh2023 · 16 citations