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September 30, 2025Open Access

Dynamic mechanical behavior of UHPC under steam curing: effects of steel fiber

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Authors

YZYongsheng ZhuChangsha University of Science and Technology

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Overview

This study investigates the impact of steel fiber content on dynamic compressive strength in UHPC, suggesting optimal mix for structural resilience.

Key Points

  • The dynamic compressive strength of UHPC increases with higher strain rates, enhancing its performance under extreme conditions.
  • With steel fiber content at 2.5%, dynamic compressive strength reaches a peak of 215.1 MPa, showing significant improvement compared to lower contents.
  • Steam curing refines pore structures, elevating overall toughness, but high temperatures can embrittle fiber-matrix zones.
  • The 2.5% fiber content optimizes interfacial properties, yielding effective energy dissipation and a robust strength-toughness balance.

Cite This Study

Yongsheng Zhu (2025) studied this question.

synapsesocial.com/papers/68dc261d8a7d58c25ebb2c37https://doi.org/10.21203/rs.3.rs-7653888/v1
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Also Consider

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  1. 1Effects of Steel Fiber Type and Volume Fraction on the Mechanical and Impact Performance of Ultra-High-Performance Concrete2026
  2. 2Effect of Curing Age and Fiber Dosage on High Strain Rate Compressive Behavior of Ultrahigh-Performance Concrete2026
  3. 3Compressive self-sensing characteristics and mechanism of UHPC with hybrid steel fiber subjected to combined curing2026
  4. 4The Influence of Metallic Fibers on the Workability of Ultra-High Performance Concrete (UHPC) Mixtures2026
  5. 5Effect of Curing Regimes and Fiber Contents on Flexural Behaviors of Milling Steel Fiber-Reinforced Ultrahigh-Performance Concrete: Experimental and Data-Driven Studies2024 · 10 citations