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<p>To effectively utilize thermal insulation gypsum (TIG) in buildings, it is essential to enhance its mechanical and waterproof properties. This study employed ordinary Portland cement (OPC) and aluminate cement (CA), along with polyvinyl alcohol (PVA) and polypropylene (PP) fibers, to reinforce these properties. The results show that CA significantly increased the mechanical strength and softening coefficient of TIG because of its compact structure, the formation of water-resistance hydration products, and reduced dissolution rate of gypsum. A proper content of PVA fibers markedly improved the compressive strength, impact resistance, and water resistance of TIG, attributed to the densification of the interfacial transition zone. The excellent flowability, high strength, superior water resistance, and effective thermal insulation properties made this TIG a promising material for energy-efficient building applications.</p>

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A High-Strength and Waterproof Thermal Insulation Gypsum Prepared with Vitrified Microsphere: Towards Energy Conservation

  • 期刊论文

  • 发表日期：

    2025年6月16日

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  • Wei Yi,
  • Cong Zhu,
  • Wenxiang Cao,
  • Xulong Yi,
  • Jiahui Peng

摘要

To effectively utilize thermal insulation gypsum (TIG) in buildings, it is essential to enhance its mechanical and waterproof properties. This study employed ordinary Portland cement (OPC) and aluminate cement (CA), along with polyvinyl alcohol (PVA) and polypropylene (PP) fibers, to reinforce these properties. The results show that CA significantly increased the mechanical strength and softening coefficient of TIG because of its compact structure, the formation of water-resistance hydration products, and reduced dissolution rate of gypsum. A proper content of PVA fibers markedly improved the compressive strength, impact resistance, and water resistance of TIG, attributed to the densification of the interfacial transition zone. The excellent flowability, high strength, superior water resistance, and effective thermal insulation properties made this TIG a promising material for energy-efficient building applications.