Hydration–Pore Architecture Regulation and Multifunctional Performance of a Quaternary Solid-Waste-Based Lightweight Porous Cementitious Material

Key Points

• The aim is to develop a lightweight building material using solid waste that is thermally insulating and absorbs electromagnetic waves.
• Developed a cementitious system using a mix of steel slag, blast furnace slag, phosphogypsum, and copper slag.
• Evaluated thermal insulation and electromagnetic wave absorption capabilities of the material.
• Analyzed pore architecture and hydration effects on material performance.
• The lightweight material demonstrated significant thermal insulation properties with a thermal conductivity of X W/mK.
• Electromagnetic wave absorption was notably enhanced, achieving an absorption rate of Y% at specified frequencies.
• Pore architecture analysis showed improved strength and durability metrics compared to traditional materials.