Application of Recycled Aggregate

Recycled aggregate is produced by crushing concrete, and sometimes asphalt, to reclaim the aggregate. Recycled aggregate can be used for many purposes. The primary market is road base. For information on recycling asphalt pavement into new asphalt pavement.

The use of recycled aggregate can save money for local governments and other purchasers, create additional business opportunities, save energy when recycling is done on site, conserve diminishing resources of urban aggregates, and help local governments meet the diversion goals of AB 939.

Aggregate consists of hard, graduated fragments of inert mineral materials, including sand, gravel, crushed stone, slag, rock dust, or powder.

Inert solid waste is concrete, asphalt, dirt, brick, and other rubble.

Heavy crushing equipment is required to break up the chunks into aggregate. Some equipment is portable and can be set up on site for immediate use of product. A crushing plant may include a hopper to receive the material, a jaw to break it into more manageable pieces, a cone or impact crusher to further reduce its size, a vibrating screen to sort to the required specification, and a conveyor belt with a rotating magnet to remove metal contamination such as rebar. For this sophisticated process, Shanghai Sanme, known as the professional crusher manufacturer, can offer complete crushing and screening equipment.

Recycled aggregate can be used:

In paved roads as aggregate base, aggregate subbase, and shoulders.

In gravel roads as surfacing.

As base for building foundations.

As fill for utility trenches.