Recycled concrete aggregates

The Recycling Process of Concrete Aggregate

1. Removal of Steel

Steel and other embedded items, if any, must be removed before crushing, and care must be taken to prevent contamination by dirt or other wasted building materials, such as plaster or gypsum, or asphalt from pavements, which can be troublesome.

2. Crushing of Concrete Block

After removing steel, the concrete block will be crushed. The common concrete crushing plant is movable, which is called mobile crushing plant or portable crushing plant. The concrete block isfeeded into crushing plant, then the crushed concrete aggregates is out of plant. Of course, there are also stationay crushing plant, which may includes jaw crusher, cone crusher, vibrating feeder, vibrating screen, Belt conveyor and so on.

3. Removing the foreign matter

Crushed concrete is mixture of cements or portland blast-furnace slag cement, natural or manufactured sand, natural gravel, crushed gravel, crushed stone, aircooled blast-furnace slag, and other materials. The third step of recycling concrete is removing the foreign matter by Vibrating screen and other seiving equipment.

4. At last, we get the recycled concrete aggregates.