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Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
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Fatigue, in the context of materials science and engineering, refers to the weakening or failure of a material caused by repeatedly applied loads, even if these loads are below the strength limit of the material. Fatigue strength in concrete is a critical property that influences its durability and longevity. Concrete can fail in two ways due to fatigue. Static fatigue or creep rupture occurs under a constant load or one that increases slowly. The other failure mode is due to cyclical or...
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  11. Effect Of Hybrid Fiber Compositions On Mechanical Properties And Durability Of Ultra-high-performance Concrete: A Comprehensive Review

Effect of Hybrid Fiber Compositions on Mechanical Properties and Durability of Ultra-High-Performance Concrete: A Comprehensive Review

Paulina Dziomdziora1, Piotr Smarzewski2

  • 1Doctoral School, Faculty of Civil Engineering and Geodesy, Military University of Technology, 2 Gen. Sylwestra Kaliskiego, 00-908 Warsaw, Poland.

Materials (Basel, Switzerland)
|June 13, 2025

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View abstract on PubMed

Summary
This summary is machine-generated.

Hybrid fibers enhance ultra-high-performance concrete (UHPC) mechanical properties and durability. Optimizing fiber combinations is key for tailored UHPC applications in sustainable infrastructure.

Area of Science:

  • Materials Science and Engineering
  • Civil Engineering

Background:

  • Ultra-high-performance concrete (UHPC) offers exceptional mechanical properties and durability.
  • Hybrid fiber compositions are increasingly explored to optimize UHPC performance.

Purpose of the Study:

  • To review the influence of hybrid fiber compositions on UHPC mechanical performance.
  • To assess the impact of hybrid fibers on UHPC resistance to environmental degradation.
  • To identify challenges and future research directions for hybrid fiber-reinforced UHPC.

Main Methods:

  • Comprehensive literature review of studies on hybrid fiber-reinforced UHPC.
  • Analysis of mechanical properties including compressive, tensile, and flexural strengths.
  • Evaluation of durability aspects such as chloride penetration, carbonation, freeze-thaw, and fire resistance.
Keywords:
durabilityhybrid fibermechanical propertiesultra-high-performance concrete

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Main Results:

  • Hybrid fibers (steel, synthetic, basalt) improve UHPC strength and crack resistance by bridging microcracks.
  • Steel-synthetic hybrids balance strength and flexibility; excessive synthetic fibers can decrease compressive strength.
  • Basalt-synthetic hybrids enhance tensile strength and crack resistance; polypropylene fibers improve fire resistance.

Conclusions:

  • Hybrid fibers significantly enhance UHPC mechanical performance and durability against various environmental factors.
  • Optimizing fiber proportions and mix designs is crucial to balance strength, workability, and performance trade-offs.
  • Further research into advanced fiber combinations and sustainable additives is needed for broader UHPC applications.