Recycled concrete (RC concrete) comes from construction waste which results from the reconstruction, demolition or dismantling of buildings, roads and other infrastructure using concrete.

A first step is to separate the concrete from 'contamination' materials like wood and plastics and to sort it into precise grain sizes. For the manufacturing process, it is important to consider the different material streams so the RC concrete can be used in different applications optimally.

Tests have shown that RC concrete withstands the same loads as concrete from primary material and achieves the same characteristics.  

RC concrete is a valid substitute for conventional concrete in many ways. For the best ecological and economic result, it is also important to consider how RC concrete is transported, and to explore options for sourcing RC concrete locally or close to where it will be re-used.