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 |
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Asphalt |
Aggregate fill and sub-base fill |
Under investigation by Highways Department |
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Excavated materials |
Filling materials |
Housing Department's building projects |
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Public fill |
Land reclamation |
Land formation at Public Filling Areas |
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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 |
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Metals |
Manufacture of new metals |
Widely practised in local construction industry |
|
Glass |
Manufacture of eco-pavers, eco-partition blocks and glassphalt, substitute for sand and aggregates as mortar, backfilling and reclamation materials |
Use of eco-pavers by Works Departments for road paving. Studies and trial uses are being carried out by Works Departments for other applications |
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Plastic |
Synthetic materials in form of plastic lumber for landscaping, horticulture and hydraulic engineering |
Use at some public recreational facilities as garden furniture |
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Rubber |
Manufacture of rubber slate tile use in roofing and sport / playground surface mat |
Use at some public recreational facilities as playground surface mat |
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Expanded polystyrene |
Manufacture of lightweight concrete for non-structural works |
Use in manufacturing lightweight concrete in Housing Department's building projects |
