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<p>This study investigates the use of Date-Palm Seeds (DS) as a sustainable alternative to coarse aggregates (CA) in concrete, based on the significant date production in Al Madinah, which exceeds 340,000 tons each year. Leveraging Madinah’s abundant date production, the research aims to recycle DS, a prominent agricultural byproduct, to create environmentally friendly concrete in alignment with Saudi Arabia’s Vision 2030, which emphasizes sustainability and resource efficiency. Concrete mixtures were prepared with DS replacing CA at ratios of 0%, 25%, 60%, and 100%-DS, and their mechanical properties were evaluated. Laboratory tests, including water absorption, specific gravity, and compressive strength, were conducted after 7 and 28 days of curing using standard procedures to assess the effects on compressive strength, density, and workability. The results indicate that partial replacement of CA with DPS significantly influences compressive strength and density, suggesting potential for lightweight concrete applications. At 25% and 60%-DS replacements, the 28-day compressive strengths were 21.51 MPa (47.5% reduction) and 13.93 MPa (66.0% reduction), respectively, while 100%-DS replacement proved unsuitable, as samples failed to bear any load. The findings highlight that optimizing DPS properties and limiting replacement ratios to below 25%-DS could yield satisfactory results. Although Date-Palm Seeds (DS) offers advantages such as reduced density and environmental sustainability, modifications to its properties, including improved bonding and reduced water absorption, are necessary for its use in structural applications. This research contributes to sustainable construction practices by integrating agricultural waste into concrete production, promoting environmental and economic benefits.</p>

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Effect of replacing coarse aggregate (CA) with Date-Palm Seeds (DS) on concrete compressive strength

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年6月17日

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  • Ayed E. Alluqmani,
  • Ahmed Alshana,
  • Ahmed A. Ali,
  • Mohammed Aloufi,
  • Omar Abdllrab,
  • Qazi Umar Farooq,
  • Abdulaziz Alqurashi,
  • Muhammad Tayyab Naqash

摘要

This study investigates the use of Date-Palm Seeds (DS) as a sustainable alternative to coarse aggregates (CA) in concrete, based on the significant date production in Al Madinah, which exceeds 340,000 tons each year. Leveraging Madinah’s abundant date production, the research aims to recycle DS, a prominent agricultural byproduct, to create environmentally friendly concrete in alignment with Saudi Arabia’s Vision 2030, which emphasizes sustainability and resource efficiency. Concrete mixtures were prepared with DS replacing CA at ratios of 0%, 25%, 60%, and 100%-DS, and their mechanical properties were evaluated. Laboratory tests, including water absorption, specific gravity, and compressive strength, were conducted after 7 and 28 days of curing using standard procedures to assess the effects on compressive strength, density, and workability. The results indicate that partial replacement of CA with DPS significantly influences compressive strength and density, suggesting potential for lightweight concrete applications. At 25% and 60%-DS replacements, the 28-day compressive strengths were 21.51 MPa (47.5% reduction) and 13.93 MPa (66.0% reduction), respectively, while 100%-DS replacement proved unsuitable, as samples failed to bear any load. The findings highlight that optimizing DPS properties and limiting replacement ratios to below 25%-DS could yield satisfactory results. Although Date-Palm Seeds (DS) offers advantages such as reduced density and environmental sustainability, modifications to its properties, including improved bonding and reduced water absorption, are necessary for its use in structural applications. This research contributes to sustainable construction practices by integrating agricultural waste into concrete production, promoting environmental and economic benefits.