At the time of this writing, the price of scrap steel had varied from $255 to $395 per ton over the previous 12 months. Assuming an average price of $300 per ton, Vertical Roller Mill In Cement Industry the steel in this slab would have a market value of $3,300.
For the most part, recycled cement (after the steel reinforcement has been removed by magnets from the wastestream), is used as an aggregate. Though it can be used as the sole aggregate in a new batch of cement mix, more often it is used as a mixture with virgin aggregate. However, its primary use as an aggregate replacement is as a stable sub-base layer underlying a new cement or bituminous-asphalt pavement surface. Placed after the soil grades have been properly compacted, the cement-debris sub-base is placed as the lowest layer of a new roadway. The surface course is then poured over it. In any case, recycled cement debris has to be free of contaminants, gypsum mining equipment such as organic materials, wood, steel, and other C&D waste before it can be used.
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