environmental protection department 1 reducing construction & demolition waste

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Environmental Protection Department

REDUCING CONSTRUCTION REDUCING CONSTRUCTION & DEMOLITION WASTE& DEMOLITION WASTE

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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:Topics Covered:

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e.g. rocks, concrete, asphalt, rubble, bricks, stones and earth

e.g. bamboo, plastic, timber, packaging waste and other organic material

Inert Material Non-inert Material

Public Fill (80%)

Construction and Demolition Waste (20%)

Waste from Construction Industry

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Mixed C&DMaterial

(6,410 tpd)

Public Fill(32,430 tpd)

Public Fill

C&DMaterial

(38,840 tpd)

C&D Waste

Public FillingArea

(32,430 tpd)

Landfill(6,410

tpd)

Courtesy of Mouchel Asia Limited

2001 2001 Daily “C&D Material” Daily “C&D Material” Arisings in Hong KongArisings in Hong Kong

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Construction & Demolition Waste

6,410 tpd(38%)

Municipal Solid Waste 9,300 tpd

(55%)

Special Waste1,110 tpd

(7%)

In 2001, 16,820 tonnes of solid waste were disposed of at landfills every day

Solid Waste Disposed at LandfillsSolid Waste Disposed at Landfills

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NENT Landfill(1995)

SENT Landfill(1994)

WENT Landfill(1993)

Strategic LandfillsStrategic Landfills

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Objectives

Promote waste minimisation and resource recovery

Prolong landfill life

Optimise waste management costs

Waste Reduction Framework Plan : Waste Reduction Framework Plan :

Launched in November 1998 Launched in November 1998

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Waste Reduction Task Forces

Waste Reduction Committee

Hotels

Airport Community

Private Housing SectorPublic Housing Sector

Government

Construction Industry

Recycling Trade

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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 Waste Reduction Task Force for the Construction IndustryConstruction Industry

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Use of public fill in reclamation


Expedite the planned reclamation projects

Maximise use of public fill in reclamations

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Optimise cut and fill

Excavated material stockpiled for reuse

Set up buffer storage area and ‘fill bank’

Excavated material stockpiled for reuse


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Construction Waste Recycling Facility at SENT landfill

Temporary sorting plant at TKO Area 137

Construction Waste Sorting and Recycling Facility

Public Filling Management

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Construction Techniques, SpecificationsConstruction Techniques, Specificationsand Standardsand Standards

Planning and DesignPrefabrication

Precast facade

Prefabricated struts

Off-site R-bar prefabrication

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Construction & ManagementSprayed plaster

Sprayed plaster equipment

Sprayed plaster


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Proper storage of building materials

On-site control of material by the headquarter using IT technology

Construction Techniques, SpecificationsConstruction Techniques, Specificationsand Standardsand StandardsConstruction & Management

Material management

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Waste paper collection trolley

Construction & ManagementWaste sorting

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Waste generated from traditional insulated pipe installation

Traditional insulated pipe installation


Traditional construction technique

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Fabricated insulated air duct

Jointing by injection foaming

Pre-insulated pipe


Low waste construction technique

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System formwork


Metal formwork

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Aluminum formwork


Metal formwork

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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, SpecificationsConstruction Techniques, Specificationsand Standardsand Standards Other measures

Reuse debris, rubble, sand, rocks, concrete, tiles and bricks for backfilling; recycled aggregate used for concrete manufacturing

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Target Developers / Manager

Professional (Architects, engineers, etc.)

Technicians

Workers

Education and TrainingEducation and Training

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Works Bureau Technical Circulars Works Bureau Technical Circulars C&D material Management

Specification Allowing the Use of Recycled inert Construction and Demolition MaterialWBTC No. 31/2000

WBTC No. 2/93 & 93A Public Dumps

WBTC No. 2/93B Public Filling Facilities

WBTC No.14/94 Use of PFA as General Fill in Reclamation

WBTC No. 2/97 Use of PFA in Concrete Pile Caps and Substructures

WBTC No. 4/98 Use of Public Fill in Reclamation and Earth Filling Projects

WBTC No. 5/98 On-site Sorting of Construction Waste on Demolition Sites

WBTC No. 5/99 Trip-ticket System for Disposal of Construction and Demolition Material

WBTC No. 5/99A Trip-ticket System for Disposal of Construction and Demolition Material

WBTC No. 19/99 Metallic Site Hoardings and Signboards

WBTC No. 25/99 Incorporation of Information on Construction and Demolition Material Management in Public Works Subcommittee Papers

WBTC No. 25/99A Incorporation of Information on Construction and Demolition Material Management in Public Works Subcommittee Papers (Amendment 1)

WBTC No.12/2000 Fill Management

Waste Management PlanWBTC No. 29/2000

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ApplicationPublic fill :Secretary of Public Fill Committee(CED)Generate not more than 100,000 cum: exempted

C&D waste : PEPO ofFacilities Management Group/EPDGenerate not more than 50 cum: exempted

Trip Ticket : WBTC no.5/99

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Environmental Protection DepartmentA Sample Trip Ticket

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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 ofKey Requirements of Waste Management Plan Waste Management Plan

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Site Practice for Waste ReductionSite Practice for Waste Reduction

Construction material management

On site waste sorting

Reuse and recycle

Final disposal

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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 managementConstruction material management

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On site waste sortingOn 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

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Reuse and recycleReuse 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.

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Final DisposalFinal 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.

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The Recycling Hotline

Tel: Tel: 2755 2750

Website:

http://www.info.gov.hk/epd/waste/cdm

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 EPDTechnical Support from EPD

environmental protection department 1 reducing construction & demolition waste

Documents

construction waste sorting

construction industry

waste minimisation

packaging waste

special waste

tpd public

municipal solid waste

day solid waste