Construction & Demolition Waste Management
What Is Construction & Demolition Waste?
Construction and demolition waste (C&D) is generated during the construction,renovation, and demolition of buildings or structures. These wastes include materials such as concrete, bricks, wood and lumber, roofing, drywall, landscape and other wastes.
In 2014, 505.1 million tons of demolition debris was generated in the US. Out of the 505.1 million tons, the debris was composed of 353.6 million tons of concrete, 76.6 million tons of asphalt concrete, 35.8 million tons of wood product, 12.7 million tons of asphalt shingles, 11.8 million tons of brick and clay tile, 10.3 million tons of drywall and plaster, and 4.3 million tons of steel.
Before demolition debris is extracted, contamination from lead, asbestos or different hazardous materials must be resolved. Hazardous materials must be disposed of separately, according to federal regulation. Demolition debris can be disposed of in either Construction and Demolition Debris landfills or municipal solid waste landfills. Alternatively, debris may also be sorted and recycled. Sorting may happen as deconstruction on the demolition site, off-site at a sorting location, or at a Construction and Demolition recycling centre. Once sorted, materials are managed separately and recycled accordingly.