Use of recycled materials in road construction

Anotace: Today, the economic need to return millions of tons of previously used materials to the production process is recognized worldwide. This also applies to construction, where building materials can be used repeatedly. Use of recycled materials is an important tool for sustainable development and reaching a compromise between economic progress and the preservation of the environment. The article is focused on one segment of the issue, the road constructions. In the construction of roads, the optimal solution is to use an "old surface" to create a new one. This is particularly advantageous for roads with a surface of asphalt material. Thanks to its properties, it can be reprocessed and used in new packaged asphalt mixtures. In general, the aim is to use 100% recycled material. However, only a certain part can be used in the production of new asphalt mixtures, depending on the type of processing. The remaining volume of milled material is used to strengthen the subsoil of roads or for service roads.