Teräskuona

Teräskuona is a byproduct of steel production, specifically from the basic oxygen steelmaking process. It is a slag that forms on the surface of the molten steel. This slag is composed primarily of oxides of iron, silicon, manganese, and calcium. The exact composition can vary depending on the raw materials used and the specific steelmaking process.

During steelmaking, impurities are oxidized and float to the surface of the molten metal. These oxides, along with fluxing agents like lime, combine to form the molten slag. This slag layer serves several purposes, including protecting the molten steel from atmospheric contamination and absorbing further impurities. Once the steel is poured, the slag is separated from the molten metal.

Teräskuona has found various applications, primarily in the construction industry. It can be processed and used as aggregate in concrete, asphalt, and road construction. Its abrasive properties also make it suitable for sandblasting and other surface preparation applications. The recycling and utilization of teräskuona are important for sustainability in the steel industry, reducing waste and providing valuable materials for other sectors.