Construction and demolition wastes (RCDs) are those that are generated in the urban environment and are not within those commonly known as Urban Solid Waste. These are essentially inert waste consisting of: mixed land and aggregates, stones, concrete remnants, asphalt pavers, refractory materials, bricks, glass, plastics, plasters, ironworks, timber and, in general, all waste that are produced by the movement of land and construction of new buildings and infrastructure works, as well as those generated by demolition or repair of old buildings.

Leblan is committed to the option of recycling, by consisting of the conversion of waste into new raw materials that can be used in the manufacture of new products which could be used in new works.