When recycling construction waste, it is important to homogenize the input material as a first step. Pre-crushing is recommended here, as it makes the crushed material easier to handle. This allows foreign materials to be sorted out very effectively and contaminants such as plastic, wood, or steel to be specifically removed. Various mineral rocks can also be separated to increase the purity of the material for further processing.

In general, the approaches used for concrete recycling can also be applied to the recycling of construction waste.