Concrete recycling as a step towards environmental protection - an overview and evaluation of concrete recycling methods

The article contains the data on the state of natural aggregate resources and attention has been paid to the enormous scale of the production of concrete and produced rubble-concrete waste in the world. The methods of recycling concrete debris used in the world along with their subjective assessment are presented in the paper. The legal regulations on concrete recycling defined by the European Union and Polish law are briefly characterized. The use of an appropriately effective method of recycling concrete debris allows obtaining a high quality secondary aggregate, which can be reused for the production of new concrete and reduces the consumption of natural aggregates.