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June 27, 2026Construction MaterialsOpen Access

Mechanical Performance and Pore Structure of Basalt-Fiber-Reinforced Recycled Aggregate Concrete with Pretreated 100% Recycled Coarse Aggregate: Effect of Mixed Fiber Lengths

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Authors

KLKai LiKMKamtornkiat MusiketBPBoonchai Phungpaingam

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Overview

Randomized trial investigates mechanical performance in recycled aggregate concrete, suggesting improvements through fiber reinforcement.

Key Points

  • This study aims to explore how different lengths of basalt fiber impact the mechanical performance and pore structure of recycled aggregate concrete.
  • Evaluated four fiber length configurations: 6 mm, 12 mm, 24 mm, and mixed-length system at volume fractions of 0.1%, 0.2%, and 0.3%.
  • Assessed mechanical performance using compressive strength, splitting tensile strength, and microstructural analysis with scanning electron microscopy and mercury intrusion porosimetry.
  • Analyzed data using statistical methods to determine the effects of fiber length and dosage on concrete properties.
  • BF24V1 achieved the highest compressive strength at 28 days with an unreported metric.
  • BFmixV1 exhibited the best overall performance with the highest tensile strength and substantial compressive strength improvement.
  • The mixed-length fiber system demonstrated a positive synergistic effect compared to the average performance of single-length mixtures with the same dosage.

Cite This Study

Li et al. (2026) studied this question.

synapsesocial.com/papers/6a3f6843aea7db3c1953f718https://doi.org/10.3390/constrmater6040038
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Mechanism Analysis of Basalt Fiber-Reinforced Recycled Aggregate Pervious Concrete2026
  2. 2Study on Mechanical Properties and Synergistic Mechanism of Concrete Reinforced with Hybrid Basalt Fibers of Different Lengths2026
  3. 3Research on the Uniaxial Compression Performance of Basalt Fiber-reinforced Recycled Aggregate Concrete2025
  4. 4Early crack resistance and interfacial properties of recycled aggregate concrete reinforced with basalt fibre: value-added utilisation of solid construction waste2026
  5. 5Experimental study on axial tensile properties of basalt fibre reinforced recycled aggregate concrete2024 · 4 citations