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<p>The production of high-strength concrete (HSC) requires a large amount of cement, which poses environmental challenges such as increased carbon dioxide (CO<sub>2</sub>) emissions. Various innovations have been explored to create more sustainable concrete by reducing cement usage and utilizing waste materials. Sugarcane bagasse ash (SBA) and sugarcane leaf ash (SLA) are agricultural waste by-products with pozzolanic properties, offering potential as alternative cement substitutes. Additionally, the incorporation of polyethylene terephthalate (PET) fibers from industrial waste can enhance the flexural strength of HSC. This study investigates the mechanical properties of HSC with SBA and SLA as partial cement replacements at ratios of 10%, 15%, and 20%, and the effectiveness of adding PET fibers at a 0.1% ratio. Furthermore, the effect of steam curing at temperatures between 70 and 80&#xa0;°C on concrete properties is examined. Results showed that a 10% substitution of cement with SBA and SLA exhibited the highest compressive strength of 34.14&#xa0;MPa at 28 days. Additionally, the optimal PET fiber addition of 0.1% results in a flexural strength increase to 4.74&#xa0;MPa after 28 days of curing.</p>

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Mechanical and microstructural properties of sugarcane-polyethylene terephthalate fiber reinforced concrete

  • 期刊论文

  • 发表日期：

    2025年3月17日

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  • Fakhruddin,
  • Muhammad Ammar Dzakir,
  • Nurul Hudaya,
  • Wilda Damayanti,
  • Arwin Nurman,
  • Sinta Renalia Rusli

摘要

The production of high-strength concrete (HSC) requires a large amount of cement, which poses environmental challenges such as increased carbon dioxide (CO2) emissions. Various innovations have been explored to create more sustainable concrete by reducing cement usage and utilizing waste materials. Sugarcane bagasse ash (SBA) and sugarcane leaf ash (SLA) are agricultural waste by-products with pozzolanic properties, offering potential as alternative cement substitutes. Additionally, the incorporation of polyethylene terephthalate (PET) fibers from industrial waste can enhance the flexural strength of HSC. This study investigates the mechanical properties of HSC with SBA and SLA as partial cement replacements at ratios of 10%, 15%, and 20%, and the effectiveness of adding PET fibers at a 0.1% ratio. Furthermore, the effect of steam curing at temperatures between 70 and 80 °C on concrete properties is examined. Results showed that a 10% substitution of cement with SBA and SLA exhibited the highest compressive strength of 34.14 MPa at 28 days. Additionally, the optimal PET fiber addition of 0.1% results in a flexural strength increase to 4.74 MPa after 28 days of curing.