Autoclaved Brick from Steel Slag and Silicon Tailings

Abstract:

The load-bearing brick is made from steel slag and silicon tailings by pressing and autoclaving process. Because of the volume stability, steel slag was ground to above 320 m²/kg and wet cured in 50-60°C at 12-24 hours in the present of additives, before pressure forming and autoclaving process. Tailings account for 63% of the total mass of the brick, while steel slag 30 %. The compressive strength of the brick was up to 13.1MPa, bending strength 3.2MPa, and with low drying shrinkage and good freeze-thaw resistance. The application conditions were discussed.

• Periodical: Advanced Materials Research (Volume 878)
• Pages: 194-198
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.878.194
• Online since: January 2014
• Authors: Peng Guan Li, Feng Qing Zhao
• Keywords: Autoclaved Brick, Modifier, Steel Slag, Tailings

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