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The cement industry has a significant environmental impact due to high resource and energy consumption. This study explores sustainable aggregates by fully replacing natural sand in mortar with sieved foundry slags from Fundiciones Rey S.L. and incorporating 1% by weight of 6 mm carbon fibers to enhance mechanical and electrical properties. Electrical resistivity was assessed using electrochemical impedance spectroscopy, while compressive strength tests ensured structural integrity. SEM and EDS analyses provided insights into composition and morphology. The results highlight the potential of these composites to reduce environmental impact and introduce new functional properties for sustainable construction materials.

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Electrical and Mechanical Properties of Cementitious Materials Obtained from Foundry Slags and Short Carbon Fiber

  • 会议论文

  • 发表日期：

    2026年

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  • Nuria Pereira-Pinto,
  • David Álvarez,
  • Belén Díaz,
  • X. Ramón Nóvoa,
  • Aránzazu Pintos,
  • Javier García Rey

摘要

The cement industry has a significant environmental impact due to high resource and energy consumption. This study explores sustainable aggregates by fully replacing natural sand in mortar with sieved foundry slags from Fundiciones Rey S.L. and incorporating 1% by weight of 6 mm carbon fibers to enhance mechanical and electrical properties. Electrical resistivity was assessed using electrochemical impedance spectroscopy, while compressive strength tests ensured structural integrity. SEM and EDS analyses provided insights into composition and morphology. The results highlight the potential of these composites to reduce environmental impact and introduce new functional properties for sustainable construction materials.