materials & recycling promoting resource efficiency in construction south ayrshire...
TRANSCRIPT
Materials & Recycling
Promoting Resource Efficiency in
Construction
South Ayrshire Sustainability ForumJohn Forbes – Scotland Manager. WRAP
Reduce raw
material use
Reduce waste
Materials efficiency
Reduce landfill
RecyclingSave
resources
Materials with recycled content
A two thirds reduction in consumption of fossil fuels and virgin materials is needed to achieve a sustainable and globally equitable level
WWF – “One planet living study” - 2004
WRAP’s construction focus
To accelerate the transition of construction waste to a useful, recycled material
Waste minimisation and management
Reprocessing C&D wastes
Procurement of recycled content
R & D product development
Capital investment in segregation and reprocessing
Site waste management
Technical advice
Client and policy requirements
Tools and guidance
Work with partner organisations, eg Envirowise, SISP, Constructing Excellence etc,
WRAP and construction
Site WasteManagement
Common construction waste causes
Offcuts
Unsuitable storage
Packaging
Over-ordering
Project management and programme
Rework
True cost of waste
Example - 8 cu yd skip
Skip hire £85
Labour to fill skip £163
Cost of materials put in skip £1095
TOTAL TRUE COST £1343
(Source: AMEC)
Materials resource efficiency on site
Simple principles:
Re-measure – 5-10% typical wastage
Reject & return – poor specifications & take-back schemes
Reduce – design out waste to start with
Re-use – formwork, site fixtures, reclaimed materials
Recycle – specify recycled and upcycle
Review – ensure procedures are up to date
Training & awareness / Waste Aware Construction
SWMP format
3 elements: Guidance
Checklist (35 questions)
Data recording sheet
Guidance covers: Waste and legislation
Duty of care
Waste minimisation
Training materials
Reporting requirements
www.dti.gov.uk/construction/sustain/site_waste_management.pdf
How can SWMPs help?
Manage risks relating to materials and waste on your site
Deal with queries from regulators
Demonstrate to clients how you manage waste, and how you reduce costs and risks to them
Meet the requirements of quality and environmental systems
Comply with likely future contractual requirements
Save money!
Potential savings
Case studies have shown savings of:
3% of build costs 20% of materials on site 0.2% of total project costs saved
through segregation
(Source: Taylor Woodrow)
Envirowise: “Saving money and raw materials by reducing waste in construction: case studies from Scotland”
SWM – ‘How to’ guidance
Material guides for site & environmental managers
A5 Guidance bookletFor site foremen
Prompt cards for
site labourers
Site posters & signage
SWMP stages
9 Key steps:
Step 1 – Identify who is responsible for producing the SWMP
Step 2 – Identify the types and quantities of waste that will be produced at all stages of the work programme/plan.
Step 3 – Identify waste management options (waste hierarchy - on- and off-site options)
Step 4 – Identify waste management sites and registered waste contractors - compliance with Duty of Care.
SWMP stages - contd
Step 5 - Training of in-house and sub-contract staff
Step 6 – Plan for efficient materials and waste handling & develop targets
Step 7 – Measure waste quantities and what types of waste
Step 8 – Monitor the implementation of the SWMP
Step 9 – Review the SWMP at the end of the project and identify learning for next time.
Internet sources for materials
BREMAP www.bremap.co.uk
CIRIA – Construction Recycling Sites www.ciria.org/recycling/
WRAP – Recycle Wood www.recyclewood.org.uk
Recovinyl – recycling PVC www.recovinyl.com
www.wasteawarebusiness.com
Material Recovery from Demolition
Policy makers & planners
Developer &design team
Contractors
Suppliers
Demolition protocol targeted guides
The Protocol & demolition (or refurbishment)
• Pre-demolition audit
• Material segregation / recovery methodology
• Recovery target set
• Evidence provided of compliance with target
Procuring HigherRecycled Content
Overall material consumption by construction industry (~420 Mt per year)
M tonnes
Quantity of construction and demolition waste generated (~90 Mt per year)
Waste construction materials that are recycled (~45 Mt per year)
Materials use in construction
The Technical Potential
Many mainstream products already include recycled content
A range of products offer above-average recycled content at no extra cost
The potential for diversion from landfill is substantial
Recycled content
Mainstream brands Eco-brands
0%
Mainstream ProductsMainstream Products
School
Actual 20%
Readily Achievable 27%
Potential 37%
1,270 tonnes of material could potentially be diverted from landfill as a result of making the 14 most effective product substitutions
Product options
Mainstream products and prices – some project-specific examples:
Product type
Conventional comparator
Higher recycled content option
Dense block
RMC Readyblock Dense0% recycled content£5.65/m2
Tarmac Topblock Topcrete Standard50-80% recycled content£5.30/m2
Clay facing brick
The Brick Business, Autumn Multi5% recycled content£250 per 1000
Hanson,Harrier Multi16% recycled content £232 per 1000
Note: There will be other product selection criteria to consider.
Housing
Standard/actual practice
Good practice
(cost-neutral)
Timber-framed house, Hillcrest HA
6% 16%
Timber-framed house, Milnbank HA
12% 22%
Brick/block house, Taylor Woodrow
16% 20% – 28%
What could be achieved?
Type of project Baseline / actual
practice %
Cost neutral Good
Practice
Detached/terraced house 6 - 26 16-29
Commercial office 10 - 22 12-30
School, hospital 12 - 20 15 – 27
Road reconstruction 8 - 16 27 – 29
Bridge reconstruction 18 - 23 33 – 49
Quick Wins
cost-effective
comparable performance and quality
readily available
New buildConcrete blocksAsphaltPaving slabsBricksFlooring
RefurbishmentCeiling tilesChipboardPlasterboardInsulation Roof tiles
Who is taking action?
Bristol City Council
Whipps Cross Hospital
Lancashire County Council
Building Schools for the Future (BSF)
Raploch URC
Adopted minimum 10% value requirement
Glasgow City Council
Aberdeen City Council
Dundee City Council
Newcastle City Council
Solihull MBC
Sheffield CC
Scottish Executive
Partnership commitment: “to use the public purchasing rules to
enhance the status of recycled goods and those capable of reuse’
Consultation 2005: “Setting targets for recycled content in public sector procurement”
“The right to specify materials or the contents of a product also includes the right to demand a minimum percentage
of recycled or reused content where possible” EU Handbook on Environmental Procurement
How do we make a start – the role of procurement
IdentifyinIdentifying needg need
RequiremenRequirement t
specificatiospecificationn
Supplier Supplier selectionselection
Tender Tender evaluationevaluation
Contract Contract managemenmanagemen
tt
Key point of intervention
European Commission handbook on environmental public procurement:
“As a contracting authority, you have the right…to demand a minimum percentage of recycled and reused content where possible”.
OGC AE11:“The (project) brief should include an outcome-based requirement for overall materials efficiency, such as a minimum requirement for recycled content in the project .”
Resources for procurement
Construction procurement template wording:
Design/project brief
Appointment of design team
Supplier pre-qualification and audit
Tender specification (D&B, traditional)
Contract clauses
Construction product listing
Guidance documents
Construction Case Studies
Housing, Education, Health, Infrastructure, Commercial, Roads
Recycled Content ToolkitSubstitutions profile
Material Resource Efficiency in Construction
www.wrap.org.uk/construction
www.aggregain.org.uk
WRAP and regeneration
Contacts
Free helpline – 0808 100 20 40
www.wrap.org.uk
John Forbes
Scotland Liaison Officer
0131 244 7953