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This study presents an innovative approach to sustainable construction materials by integrating bio-based phase change materials (PCMs) within recycled wood aggregates (RWAs) to develop NRG-WOOD, a novel thermal energy storage (TES) bio-aggregate. The research investigates the thermal, mechanical, and durability properties of cementitious composites incorporating NRG-WOOD, comparing their performance with traditional ordinary Portland cement (OPC) and wood-based mortars. Experimental evaluations, including hydration tests, dynamic sphere calorimetry, and mechanical strength assessments, reveal that PCM-enhanced RWAs significantly reduce hydration heat, lower energy demand, and enhance thermal regulation in buildings. Furthermore, the study extends its impact assessment through a Life Cycle Assessment (LCA) to quantify the environmental benefits of NRG-WOOD-based mortars. The LCA, conducted using SimaPro software and the Ecoinvent database, evaluates key environmental indicators such as global warming potential, embodied energy, and water footprint. This research contributes to the advancement of green building materials, offering a viable solution to mitigate climate change and transition towards more sustainable construction practices.

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Thermal Energy Storage Characterization of Green Wooden Cementitious Composites Enhanced with Phase Change Materials

  • 会议论文

  • 发表日期：

    2026年

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  • Hala Salhab,
  • Mahdi Zanjani,
  • Alberto Lagazzo,
  • Sergio Nardini,
  • Saulo Rocha Ferreira,
  • Antonio Caggiano

摘要

This study presents an innovative approach to sustainable construction materials by integrating bio-based phase change materials (PCMs) within recycled wood aggregates (RWAs) to develop NRG-WOOD, a novel thermal energy storage (TES) bio-aggregate. The research investigates the thermal, mechanical, and durability properties of cementitious composites incorporating NRG-WOOD, comparing their performance with traditional ordinary Portland cement (OPC) and wood-based mortars. Experimental evaluations, including hydration tests, dynamic sphere calorimetry, and mechanical strength assessments, reveal that PCM-enhanced RWAs significantly reduce hydration heat, lower energy demand, and enhance thermal regulation in buildings. Furthermore, the study extends its impact assessment through a Life Cycle Assessment (LCA) to quantify the environmental benefits of NRG-WOOD-based mortars. The LCA, conducted using SimaPro software and the Ecoinvent database, evaluates key environmental indicators such as global warming potential, embodied energy, and water footprint. This research contributes to the advancement of green building materials, offering a viable solution to mitigate climate change and transition towards more sustainable construction practices.