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<p>In recent years, the research into environmentally friendly, sustainable building materials has progressed considerably. Despite the general adoption of gypsum boards in construction due to their functional advantages, including lightweight, fire resistance, thermal and acoustic insulation, and ease of installation, it has been noted that there is a risk of a loss of structural integrity and significant damage in the event of failure. The present study investigates an innovative, durable composite based on gypsum and spathe fibers to improve gypsum board’s thermal, acoustic, structural, and moisture control properties. Experiments were conducted to determine the thermal, acoustic, mechanical, and hydric properties of different gypsum compositions and spathe fibers mass fractions, namely 0%, 1%, 2%, 3%, 4%, and 5%. Then, these properties were examined after a curing period of 28&#xa0;days under standard conditions. The mechanical test results showed that adding up to 2% fibers significantly improved the structural integrity of the plaster. In addition, the sample based on gypsum with 5% fibers showed a 26.24% decrease in thermal conductivity, a 3.07% increase in thermal capacity, a 17.16% decrease in bulk density, and a 70.50% increase in water absorption capacity compared with the reference sample. The acoustic properties of spathe fiber reinforced gypsum boards also showed significant improvements, with a sound transmission loss exceeding 50&#xa0;dB at 1400&#xa0;Hz, and a sound absorption coefficient reaching nearly 0.7, compared to values below 0.4 for the sample without fibers. This evaluation presents the composite studied based on gypsum and spathe fibers as an alternative sustainable construction material.</p>

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Recycling date palm waste in a gypsum-based composite: experimental study of thermal, acoustic, mechanical and hydric performance

  • 期刊论文

  • 发表日期：

    2025年6月26日

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  • Youssef Khrissi,
  • Amine Tilioua,
  • Najma Laaroussi,
  • Abdelmajid Bybi

摘要

In recent years, the research into environmentally friendly, sustainable building materials has progressed considerably. Despite the general adoption of gypsum boards in construction due to their functional advantages, including lightweight, fire resistance, thermal and acoustic insulation, and ease of installation, it has been noted that there is a risk of a loss of structural integrity and significant damage in the event of failure. The present study investigates an innovative, durable composite based on gypsum and spathe fibers to improve gypsum board’s thermal, acoustic, structural, and moisture control properties. Experiments were conducted to determine the thermal, acoustic, mechanical, and hydric properties of different gypsum compositions and spathe fibers mass fractions, namely 0%, 1%, 2%, 3%, 4%, and 5%. Then, these properties were examined after a curing period of 28 days under standard conditions. The mechanical test results showed that adding up to 2% fibers significantly improved the structural integrity of the plaster. In addition, the sample based on gypsum with 5% fibers showed a 26.24% decrease in thermal conductivity, a 3.07% increase in thermal capacity, a 17.16% decrease in bulk density, and a 70.50% increase in water absorption capacity compared with the reference sample. The acoustic properties of spathe fiber reinforced gypsum boards also showed significant improvements, with a sound transmission loss exceeding 50 dB at 1400 Hz, and a sound absorption coefficient reaching nearly 0.7, compared to values below 0.4 for the sample without fibers. This evaluation presents the composite studied based on gypsum and spathe fibers as an alternative sustainable construction material.