Production and Processes

Aggregates are inert material

  • Primary aggregates are produced from natural sources extracted from quarries and sand & gravel pits and in some countries from sea-dredged materials (marine aggregates).
  • Secondary aggregates are recycled aggregates derive from reprocessing materials previously used in construction, including construction, demolition residues and by-products from other industrial processes, like blast or electric furnace slags or china clay residues.