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Recycling of Construction & Demolition (C & D) Materials

broken concrete and rock pieces



History

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. Construction and Demolition materials


Existing Arrangement

The crushing plant is located at Tseung Kwan O Area 137 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 charts for the ordering and collection of the materials. Order forms are now available for downloading.

For public works projects,

Recycled Rockfill

For non-public works projects,

  • Flow Chart for the Ordering and Collection of G200 Recycled Rockfill for Non-public Works Projects  Download PDF (83KB)
  • Advance Order Form for G200 Recycled Rockfill for Non-public Works Projects (FM-RA-03) Download PDF (151KB)

Selective Demolition and On-site Sorting

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.
Selective demolition


Enquiries

For any question or further information on the recycling of C&D materials, please contact Senior Engineer/Strategy 2 of Fill Management Division at kenlo@cedd.gov.hk.