Aggregate |
Sub-base material for road construction,hardcore
for foundation works, base/fill for drainage,aggregate for concrete
manufacture and general bulk fill |
Pilot studies carried out by works departments |
| Asphalt |
Aggregate fill
and sub-base fill |
Under investigation by Highways
Department |
| Excavated materials |
Filling materials |
Housing Department's building projects |
| Public fill |
Land reclamation |
Land formation at Public Filling
Areas |
| Pulverized fuel ash |
Manufacture of concrete products,
uses in fill and reclamation, highway construction and reinforced
soil structures |
Construction of Chek Lap Kok Airport,
use in structural concrete for foundation works in the Housing Department's
building projects |
| Metals |
Manufacture of new metals |
Widely practised in local construction
industry |
| Glass |
Substitute for sand and aggregates
as pipe-bedding material, gravel backfill for walls, crushed stone
surfacing, backfill and bedding |
Nil. |
| Plastic |
Synthetic materials in form of plastic
lumber for landscaping, horticulture and hydraulic engineering |
Use at some public recreational
facilities as garden furniture |
| Rubber |
Manufacture of rubber slate tile
use in roofing and sport / playground surface mat |
Use at some public recreational
facilities as playground surface mat |
| Expanded polystyrene |
Manufacture of lightweight concrete
for non-structural works |
Use in manufacturing lightweight
concrete in Housing Department's building projects |
| important notices