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<p>In recent years, addressing global warming has become increasingly urgent, particularly in the building sector, where efforts to enhance thermal comfort are crucial. As part of this effort, there has been a resurgence in the use of earth-building materials included with plant waste due to their potential to reduce carbon emissions and meet updated environmental standards. This study focuses on evaluating the impact of incorporating tomato stem waste (TSW) and pepper stem waste (PSW) aggregates into stabilized Raw Earth Blocks (REBs) with lime. The aim is to assess how these plant waste aggregates affect the thermal and physical properties of the blocks. Different percentages of aggregates (ranging from 0% to 1.5% by weight of the blocks) are examined to determine their influence. The results indicate that incorporating TSW and PSW in REBs reduces ultrasound wave speed due to increased porosity, suggesting improved sound insulation. Additionally, even small additions of TSW and PSW aggregates lead to significant reductions in the thermal conductivity of the blocks. For instance, incorporating 1.5% of TSW aggregates resulted in a decrease in thermal conductivity by approximately 39.20%, while PSW aggregates led to a reduction of about 23.70% compared to control blocks.</p>

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Effect of Tomato and Pepper Stem Waste on Thermal and Physical Properties of Raw Earth Blocks

  • 期刊论文

  • 发表日期：

    2025年5月14日

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  • Salah Labed,
  • Bachir Taallah,
  • M’hamed Mahdad,
  • Myriam Duc,
  • Kamal Saleh Almeasar,
  • Abdelhamid Guettala

摘要

In recent years, addressing global warming has become increasingly urgent, particularly in the building sector, where efforts to enhance thermal comfort are crucial. As part of this effort, there has been a resurgence in the use of earth-building materials included with plant waste due to their potential to reduce carbon emissions and meet updated environmental standards. This study focuses on evaluating the impact of incorporating tomato stem waste (TSW) and pepper stem waste (PSW) aggregates into stabilized Raw Earth Blocks (REBs) with lime. The aim is to assess how these plant waste aggregates affect the thermal and physical properties of the blocks. Different percentages of aggregates (ranging from 0% to 1.5% by weight of the blocks) are examined to determine their influence. The results indicate that incorporating TSW and PSW in REBs reduces ultrasound wave speed due to increased porosity, suggesting improved sound insulation. Additionally, even small additions of TSW and PSW aggregates lead to significant reductions in the thermal conductivity of the blocks. For instance, incorporating 1.5% of TSW aggregates resulted in a decrease in thermal conductivity by approximately 39.20%, while PSW aggregates led to a reduction of about 23.70% compared to control blocks.