Environmental Protection Department 1 REDUCING CONSTRUCTION & DEMOLITION WASTE

Environmental Protection Department 2  Needs to reduce C&D material  The Waste Reduction Task Force for the Construction Industry : Public fill management, construction techniques, specifications and standards, and education and training  WBTC, Trip-ticket system & WMP  Good waste reduction practice Topics Covered:

Environmental Protection Department 3 e.g. rocks, concrete, asphalt, rubble, bricks, stones and earth e.g. bamboo, plastic, timber, packaging waste and other organic material Inert MaterialNon-inert Material Public Fill (80%) Construction and Demolition Waste (20%) Waste from Construction Industry

Environmental Protection Department 4 Mixed C&D Material (6,410 tpd) Public Fill (32,430 tpd) Public Fill C&D Material (38,840 tpd) C&D Waste Public Filling Area (32,430 tpd) Landfill (6,410 tpd) Courtesy of Mouchel Asia Limited 2001 Daily “C&D Material” Arisings in Hong Kong

Environmental Protection Department 5 Construction & Demolition Waste 6,410 tpd (38%) Municipal Solid Waste 9,300 tpd (55%) Special Waste 1,110 tpd (7%) In 2001, 16,820 tonnes of solid waste were disposed of at landfills every day Solid Waste Disposed at Landfills

Environmental Protection Department 6 NENT Landfill (1995) SENT Landfill (1994) WENT Landfill (1993) Strategic Landfills

Environmental Protection Department 7 Objectives  Promote waste minimisation and resource recovery  Prolong landfill life  Optimise waste management costs Waste Reduction Framework Plan : Launched in November 1998

Environmental Protection Department 8 Waste Reduction Task Forces Waste Reduction Committee Hotels Airport Community Private Housing Sector Public Housing Sector Government Construction Industry Recycling Trade

Environmental Protection Department 9  Membership  Professional bodies, academia, project clients & developers, contractors, consulting engineers and government  Public Fill Management  Construction Techniques, Specifications and Standards  Education and Training Waste Reduction Task Force for the Construction Industry

Environmental Protection Department 10 Use of public fill in reclamation Public Fill Management  Expedite the planned reclamation projects  Maximise use of public fill in reclamations

Environmental Protection Department 11  Optimise cut and fill  Excavated material stockpiled for reuse  Set up buffer storage area and ‘fill bank’ Excavated material stockpiled for reuse Public Fill Management

Environmental Protection Department 12 Construction Waste Recycling Facility at SENT landfill Temporary sorting plant at TKO Area 137  Construction Waste Sorting and Recycling Facility Public Filling Management

Environmental Protection Department 13 Construction Techniques, Specifications and Standards  Planning and Design  Prefabrication Precast facade Prefabricated struts Off-site R-bar prefabrication

Environmental Protection Department 14  Construction & Management  Sprayed plaster Sprayed plaster equipment Sprayed plaster Construction Techniques, Specifications and Standards

Environmental Protection Department 15 Proper storage of building materials On-site control of material by the headquarter using IT technology Construction Techniques, Specifications and Standards  Construction & Management  Material management

Environmental Protection Department 16 Construction Techniques, Specifications and Standards Waste paper collection trolley  Construction & Management  Waste sorting

Environmental Protection Department 17 Waste generated from traditional insulated pipe installation Traditional insulated pipe installation Construction Techniques, Specifications and Standards  Construction & Management  Traditional construction technique

Environmental Protection Department 18 Fabricated insulated air duct Jointing by injection foaming Pre-insulated pipe Construction Techniques, Specifications and Standards  Construction & Management  Low waste construction technique

Environmental Protection Department 19 System formwork Construction Techniques, Specifications and Standards  Construction & Management  Metal formwork

Environmental Protection Department 20 Aluminum formwork Construction Techniques, Specifications and Standards  Construction & Management  Metal formwork

Environmental Protection Department 21 建造技術、規格及標準  其他措施  循環顆粒材料用作填料 ; 粒料用作混凝土材 料用途 Construction Techniques, Specifications and Standards  Other measures  Reuse debris, rubble, sand, rocks, concrete, tiles and bricks for backfilling; recycled aggregate used for concrete manufacturing

Environmental Protection Department 22  Target  Developers / Manager  Professional (Architects, engineers, etc.)  Technicians  Workers Education and Training

Environmental Protection Department 23 Works Bureau Technical Circulars Works Bureau Technical Circulars C&D material Management Specification Allowing the Use of Recycled inert Construction and Demolition Material WBTC No. 31/2000 WBTC No. 2/93 & 93APublic Dumps WBTC No. 2/93BPublic Filling Facilities WBTC No.14/94Use of PFA as General Fill in Reclamation WBTC No. 2/97Use of PFA in Concrete Pile Caps and Substructures WBTC No. 4/98Use of Public Fill in Reclamation and Earth Filling Projects WBTC No. 5/98On-site Sorting of Construction Waste on Demolition Sites WBTC No. 5/99Trip-ticket System for Disposal of Construction and Demolition Material WBTC No. 5/99ATrip-ticket System for Disposal of Construction and Demolition Material WBTC No. 19/99Metallic Site Hoardings and Signboards WBTC No. 25/99Incorporation of Information on Construction and Demolition Material Management in Public Works Subcommittee Papers WBTC No. 25/99AIncorporation of Information on Construction and Demolition Material Management in Public Works Subcommittee Papers (Amendment 1) WBTC No.12/2000Fill Management Waste Management Plan WBTC No. 29/2000

Environmental Protection Department 24 Application Public fill : Secretary of Public Fill Committee(CED) Generate not more than 100,000 cum: exempted C&D waste : PEPO of Facilities Management Group/EPD Generate not more than 50 cum: exempted Trip Ticket : WBTC no.5/99

Environmental Protection Department 25 A Sample Trip Ticket

Environmental Protection Department 26  Types, quantities and qualities of wastes  Timing of waste arising  Measures for reducing waste generation  On-site waste sorting  On-site and off-site reuse  Areas for waste storage  Quantities of wastes requiring off-site disposal  Disposal outlets  Monitoring and auditing program  e.g. trip-ticket system etc.  Organisation structure for waste management Key Requirements of Waste Management Plan

Environmental Protection Department 27 Site Practice for Waste Reduction  Construction material management  On site waste sorting  Reuse and recycle  Final disposal

Environmental Protection Department 28  Order the right amount of raw material at the right time  Store material in allocated area with suitable protective measures  Collect the exact amount of materials and return the surplus to stock  Maximise the utilisation of materials  Avoid unnecessary use and cutting  Consider offcuts for sections when small lengths are required Construction material management

Environmental Protection Department 29 On site waste sorting  Sort and segregate inert and non-inert materials  Sort and segregate materials such as paper, plastic, timber, metals, masonry, concrete and excavated spoil

Environmental Protection Department 30 Reuse and recycle  Balance cut and fill in site  Reuse items such as hoardings, formworks, scaffoldings and trench support  Reuse debris, rubble, sand, rock, concrete, tile and brick for backfilling  Recycle the following materials:  paper, paperboard, packaging material, plastics, timber, metals, concrete, rocks & sand.

Environmental Protection Department 31 Final Disposal  Reuse public fill at public filling areas for reclamation  Dispose of non-recyclable C&D waste at landfills  Adopt trip-ticket system to avoid fly-tipping and to ensure waste is disposed of properly.

Environmental Protection Department 32  The Recycling Hotline Tel: Tel:  Website:  Statistics on waste recycling  Lists of local recyclable material collectors and recyclers  Information leaflets and guidance materials  videos, posters and leaflet etc. Technical Support from EPD