Development of silica fume-based geopolymer foams
- Shakouri, Sahra
- Bayer, Özgür
- Erdoğan, Sinan Turhan
DOIAbstract
Thermal insulation materials are critical for reducing the energy consumption and carbon emissions associated with buildings. A good insulation material must not only have low density and sufficient mechanical properties but also resist high temperatures and fires. In addition, its production process must be simple and inexpensive. This study describes the production of very low density (>85 kg/m(3)) inorganic foams with high porosity (<94%). Silica fume and NaOH solutions are mixed to prepare a geopolymer paste that is cured in a laboratory oven at 60-100 degrees C, and expanded in a furnace at similar to 200-500 degrees C. The expansion mechanism and pore structures of the foams, as well as their physical, mechanical, and thermal properti...
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