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<p>In addressing the challenges of solid waste disposal, this study proposed to utilize electrolytic manganese residue to produce building insulation materials. The research focused on the factors such as precursor material ratio, alkali activator ratio, foaming agent and foam stabilizer on the target insulation materials properties. The findings indicated that SiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> molar ratio, SiO<sub>2</sub>/Na<sub>2</sub>O molar ratio, and liquid/solid mass ratio impact the mechanical properties of the samples. The best mechanical performance of building structural material samples was characterized by a compressive strength of 11.15 MPa and a density of 1476 kg/m<sup>3</sup>. The optimal properties for building insulation materials were a thermal conductivity of 0.131–0.104 W/(m·K), compressive strength of 1.49–0.69 MPa, and density of 533–433 kg/m<sup>3</sup>, with a cost of 1722–1294 CNY/m<sup>3</sup>. This research provides a new approach for large-scale electrolytic manganese residue utilization while enhancing insulation performance and reducing energy consumption in buildings, with promising prospects for further engineering development.</p>

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Preparation of Building Insulation Materials from Electrolytic Manganese Residue for Solid Waste Disposal

  • 期刊论文

  • 发表日期：

    2025年6月28日

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  • Zhiping Chen,
  • Hongqiang Li,
  • Tiantian Liu,
  • Yizhe Peng,
  • Lifang Liu,
  • Li Zhao,
  • Chenghan Cai,
  • Faxi Xu

摘要

In addressing the challenges of solid waste disposal, this study proposed to utilize electrolytic manganese residue to produce building insulation materials. The research focused on the factors such as precursor material ratio, alkali activator ratio, foaming agent and foam stabilizer on the target insulation materials properties. The findings indicated that SiO2/Al2O3 molar ratio, SiO2/Na2O molar ratio, and liquid/solid mass ratio impact the mechanical properties of the samples. The best mechanical performance of building structural material samples was characterized by a compressive strength of 11.15 MPa and a density of 1476 kg/m3. The optimal properties for building insulation materials were a thermal conductivity of 0.131–0.104 W/(m·K), compressive strength of 1.49–0.69 MPa, and density of 533–433 kg/m3, with a cost of 1722–1294 CNY/m3. This research provides a new approach for large-scale electrolytic manganese residue utilization while enhancing insulation performance and reducing energy consumption in buildings, with promising prospects for further engineering development.