Aggregates

The key to producing more marketable recycled Aggregates lies in the effective segregation and decontamination of source material.

This may be as simple as removing paper, plastic and wood from demolition waste to produce clean hardcore from haul roads and sub base materials.

Or it might involve a more sophisticated process to produce quality decontaminated size Aggregates.

The extraction of Aggregates from Quarrying and Landscaping ( Sand, Gravel, Ballast, Ashpalt, Crushed Rock, Slate, Flint and Pebble ) represents 82% by tonnage of all Non-Fossil Fuel Minerals extracted from the land and sea in the U.K.

The Extraction, Transport and Eventual disposal of these Aggregates has significant implications for the enviroment.

Recycled Aggregates reduces the demand for Primary Aggregates by increasing their cost and makes use of Recycled and Secondary Aggregates more viable and so although it reduces impacts overall it does not decouple Aggregate Extraction and Enviromental impacts.

The blending of Primary Aggregates with Secondary Materials enables sustainability benefits and cost effectivness of pure Recycled Aggregates to be combined with the reliability and consistency of Primary Aggregates.

Once a specification has been determined you can then identify the most appropriate Recycled Aggregates to be used, the most effective blending technique to undertake the base materials ( Limestone, Granite or Slag ) to utilize the percentage of Primary Aggregates to be blended with Secondary Aggreagtes.