Hong Kong is facing a challenge to handle a significant amount
of Construction and Demolition (C&D) materials to be generated
per year from local construction activities. A good proportion
of these C&D materials are broken concrete and rock pieces
which can be recycled into recycled aggregates and granular
materials for use in construction works. It is the Government's
determination to promote recycling and the use of recycled
products as far as possible for sustainable development in
Hong Kong and to help preserve the precious land fill and
public fill capacities.
The crushing plant at Tuen Mun Fill Bank has been relocated to Tseung Kwan O Fill Bank to produce G200 recycled rockfill.
Placing
Order and Collection of Grade 200 Recycled Rockfill
Placing order and collection of grade
200 recycled rockfill are simple. Procedures are summarized
in the Flow chart for the ordering and collection of the materials.
Two order forms "Advance Order Form for G200 Recycled
Rockfill" and "Ad Hoc Request Form" are now
available for downloading.
Only broken concrete and rock pieces are suitable for recycling with market value. Other inert hard C&D material such as asphalt, tiles, bricks and glass cannot be processed into acceptable and/or marketable products without further research development and change of local market acceptance criteria. To make it greener without the necessity to import more energy, it is desirable that only concrete and rock, not being mixed with any other non-recyclable materials, are delivered to the recycling facility. Separating the concrete and rock pieces from contaminants is extra onerous and not energy efficient. Selective demolition and on-site sorting should be adopted for all demolition projects to facilitate recycling as far as possible.
For any question or further information on the
recycling of C&D materials, please contact Senior
Engineer/Strategy of Fill Management Division at
smlai@cedd.gov.hk.
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