Construction and demolition waste in the U.S. is approximately 135 million tons annually, or about 3 lbs/person/day. Recyclable materials can be recycled at the end of their useful life as a building, pavement, or other structure – reducing the amount of material that is landfilled and reducing the need for virgin materials in new construction. The constituents of concrete can be recycled materials, and concrete itself can also be recycled; these materials are usually available locally. Most concrete in urban areas is recycled as fill or road base and not placed in landfills.