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<p>Although mineral-bonded wood composites (MBWC) are rarely used in commercial applications, they represent a new generation of construction materials that are more fire-resistant, dimensionally stable, and durable than conventional wood-based systems. This investigation evaluates the recent advances in MBWCs with respect to binder chemistry, processing parameters, and the structure-property relationships governing their engineering performance. The author compares well-known systems such as cement and gypsum-bonded composites with emerging binders like magnesium phosphate and chemically bonded phosphate ceramics. Emphasis is placed on mechanical strength, moisture resistance, and long-term durability, which are important for construction use. When viewed through the lens of the circular economy, MBWCs offer promising opportunities for valorization of lignocellulosic residues and industrial by-products. A systematic analysis of the effects of raw material properties, pre-treatment techniques, and supplementary cementitious materials (SCMs) on composite performance is presented. The challenges include binder-wood incompatibility, alkaline degradation, and lack of standardized processing protocols. Ultimately, the review recognizes important research gaps in durability modelling, life-cycle assessment, and industrial scalability, thereby providing a framework for developing next-generation sustainable composite materials.</p>

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Mineral-Bonded Wood Composites as Circular and Sustainable Construction Materials: Processing, Performance, and Future Directions

  • 期刊论文

  • 发表日期：

    2026年7月6日

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  • Saurabh Sharma,
  • Rohit Sharma,
  • Bhupender Dutt,
  • Rajneesh Kumar

摘要

Although mineral-bonded wood composites (MBWC) are rarely used in commercial applications, they represent a new generation of construction materials that are more fire-resistant, dimensionally stable, and durable than conventional wood-based systems. This investigation evaluates the recent advances in MBWCs with respect to binder chemistry, processing parameters, and the structure-property relationships governing their engineering performance. The author compares well-known systems such as cement and gypsum-bonded composites with emerging binders like magnesium phosphate and chemically bonded phosphate ceramics. Emphasis is placed on mechanical strength, moisture resistance, and long-term durability, which are important for construction use. When viewed through the lens of the circular economy, MBWCs offer promising opportunities for valorization of lignocellulosic residues and industrial by-products. A systematic analysis of the effects of raw material properties, pre-treatment techniques, and supplementary cementitious materials (SCMs) on composite performance is presented. The challenges include binder-wood incompatibility, alkaline degradation, and lack of standardized processing protocols. Ultimately, the review recognizes important research gaps in durability modelling, life-cycle assessment, and industrial scalability, thereby providing a framework for developing next-generation sustainable composite materials.