Reuse and Recycling
Reuse and recycling could divert construction waste from waste stream back to the construction cycle. This can be achieved through balancing cut and fill, reusing items such as hoardings, formworks and scaffoldings and recycling materials such as metals, concrete and asphalt. Demolition waste can also be reused and recycled on-site in new construction as bricks and tiles in new fixtures. Besides, on-site crushing of concrete could also enhance use of recycled aggregates in new buildings.
On-Site Sorting
Sorting is important to recover waste for reuse and recycle. To facilitate sorting, a specific area should be allocated for on-site sorting of waste while suitable containers should be provided to temporary store the sorted materials such as metals, concrete, timber, plastics, glass, excavated spoils, bricks and tiles. If small area of the site limits detailed sorting, waste material should at least be separated into inert and non-inert portions.
Orderly Disposal
Prior to disposal, all materials should
be sorted and reused on-site or off-site while recyclable
materials should be collected for recyclers' reuse.
Public fill should then be transported to public fill
reception facilities while remaining construction waste
should be disposed of at landfill. To avoid fly tipping,
contractors should follow Government's
practice under the Trip-Ticket
System to ensure that truck drivers dispose of construction
waste at proper places.
|
