Cutting carbon in construction

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John Barritt, construction materials sector specialist, WRAP

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Cutting carbon in construction

  1. 1. Cutting carbon in construction John Barritt Construction Materials Sector Specialist
  2. 2. WRAP ‘Designing out Waste’ tools and guidance for maximising the carbon benefits of resource efficient construction Reducing waste and carbon through an efficient site waste management plan Exploring the options for recycling concrete without increasing net carbon Defining model procurement requirements for carbon efficiency in construction projects and facilities management
  3. 3. WRAP Tools
  4. 4. Identify opportunities to design out waste in buildings projects; Record design solutions pursued to reduce material consumption, wastage and carbon; Calculate the impact of these solutions, including savings in project costs, waste to landfill and embodied carbon; Compare the performance of different projects / alternative designs; and Provide an indicative waste forecast for your Site Waste Management Plan (SWMP).
  5. 5. User journey Register/login Add new project Enter project details Performance report (waste forecast) Design review workshop Awareness session: review of principles Creativity session: generate ideas Reasoning session: prioritise ideas Record actions and impacts Calculate combined impacts Detailed report Reporting Project comparison Use project as template
  6. 6. WRAP SWMP Template Users: Design Team, Client, Principal Contractor When: As early in the project as possible Waste forecasts Inputs: Actual waste arisings Waste destinations Cost: A few hours, depending on project size Meet the legal requirement (England only) Identify Good & Best Practice opportunities Benefits: Assign responsibilities for waste management actions Identify areas for improvement & lessons learned
  7. 7. Project Stage SWMP Section Guidance Compliance Policy and setup 1 Enter Basic Details Section 1.0 Pre- Construction Status: Preparation and 2 Record Waste Prevention Actions Section 2.0 concept design Not compliant Forecast Waste Non Compliances: 11 / 11 Detailed design 3 Section 3.0 Review > Record Waste Reduction Actions Specify Waste Carriers Pre-construction 4 Plan Waste Destinations Section 4.0 Record Waste Management and Recovery Actions Construction Status: Construction 5 Enter Actual Waste Movements Section 5.0 Not compliant Non Compliances: 16 / 16 Review > KPI's Post Completion Status: Post completion 6 Reporting Section 6.0 Not compliant and use Non Compliances: 2 /2 Review > Sign Declaration
  8. 8. Crushed concrete produces a quality recycled aggregate What are the most resource efficient and low carbon uses for aggregates produced from concrete?
  9. 9. Recycled aggregates as coarse aggregate for concrete: Limitations within concrete standard restrict use Viable technical options for non structural concrete >20% in structural concrete increases water demand, cement content and carbon Use should be close to crushing operation to prevent high transport carbon
  10. 10. 2008 aggregate market recycled/secondary 28% crushed rock 44% sand & gravel 28%
  11. 11. For more information: www.wrap.org.uk/construction www.aggregain.wrap.org.uk

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