Once thought of as mere garbage, concrete debris is now routinely recycled and reused, saving builders millions of dollars and freeing up space in landfills. Each year, construction companies recycle 140 million tons of concrete in the United States [source: Concrete Materials Recycling Association.
Once concrete and masonry rubble is removed from a construction site, the waste is taken to a crushing center for a fee. These facilities, which only accept concrete that is free of trash, wood and other materials, will crush and screen the debris to remove dirt and other particles. Concrete can also be crushed and sifted at the job site [source: Concrete Materials Recycling Association]. Once crushed, concrete can be reused in pavement for roads and driveways. Recycled concrete is also a good foundation on top of which contractors can place pipes and other utilities. Landscapers also use larger pieces of concrete rubble in their work.