Murray Reid Senior Technical Manager, TRL

1. AGS and Reducing Waste to Landfill Murray Reid Senior Technical Manager, TRL

2. Outline • Why reduce waste? • The designer’s role • Designing out Waste • The Halving Waste to Landfill Commitment • Conclusions

3. Why take action? Finance Achieve real cost reductions Reputation Achieve clear market recognition Policy Contribute tostrategic objectives Environment Enable clear environmental benefits

4. Policy lead Industry action

5. Page 5 Why reduce waste? Cost and Legislation • Landfill tax: increases to £56/tonne for non-hazardous waste from April 2011 • £2.50/tonne for inert waste • Aggregate levy increases to £2.10/tonne from April 2011 • Site Waste Management Plan Regulations, 2008, England only • Apply to projects > £300,000 • Require design decisions to be recorded

6. Why take action? Finance Achieve real cost reductions Reputation Achieve clear market recognition Policy Contribute tostrategic objectives Environment Enable clear environmental benefits

7. The designer’s role • Waste is not just “a matter for the contractor” • Decisions taken at early stage in a project determine the waste generated and materials used • Decisions at site stage on how works are constructed have relatively small impact compared to design stage decisions

8. Impact Time Effect of design decisions

9. Case study: M40 J15 Bypass

10. Case study: M40 J15 Bypass Key Facts • £56 million junction bypass • A46 on new bridge over M40 • New roundabout and upgrade to existing J15 • Results • Three borrow pits were utilised to minimise material movements saving around £6 million • 95% of waste has been diverted from landfill • Existing drainage and certain sections will bekept, saving on cost and programme

11. Designing out Waste • Consider waste from the earliest stages of a project • Aim to reduce waste as far as possible; goes beyond using recycled and secondary materials • Structured approach developed by WRAP based on 5 principles • Design for reuse and recovery • Design for offsite construction • Design for materials optimisation • Design for waste efficient procurement • Design for deconstruction and flexibility

12. Techniques for Designing out Waste • Reuse of existing foundations, pavements and structures • Recycle if not possible to reuse • Use of geosynthetics to retain materials on site and replace concrete and steel • Ground improvement techniques to avoid excavation • Use of offsite construction • Treatment of contaminated land instead of disposal to landfill • Retention of working platforms in final works • Simplification of design and standardisation of components

13. Design guides www.wrap.org.uk/construction

14. M4 Junction 11 • £65 million PBA project, 2 local authorities & HA • Major earthworks project • Reuse of site-won material maximised • 85,000 tonnes pulverised fuel ash used in embankments • Environmental Excellent Award 2009 CIWM • Waste monitored through variety of procedures

15. Stanah Sea Defences • Environment Agency & Birse Civils • Repairs to embankment • Optimised design of embankment and foundation • Reused material on site • Piling mat reused as backfill • Recycled content maximised • Sustainable procurement • Zero waste to landfill • 46% reduction in carbon • Cost savings

16. Modular Block Wall, Mansfield

17. Use of tyre bales on A421 Winner of Fleming Award 2010

18. Construction Commitments:Halving Waste to Landfill Clients Contractors “We commit to playing our part in halving the amount of construction, demolition and excavation waste going to landfill by 2012. We will work to adopt and implement standards for good practice in reducing waste, recycling more, and increasing the use of recycled and recovered materials” Trade & Specialist Subcontractors Designers & Consultants Manufacturers & Suppliers Waste Management Contractors

19. Clients Set requirements in projectprocurement Contractors Set requirements in project procurement Trade & Specialist Subcontractors Avoid waste on site by proper handling, storage and use of materials Designers & Consultants Identify or create design solutions that use resources efficiently Manufacturers & Suppliers Use more recycled materials and reduce packaging Waste Management Contractors Increase waste recovery rates

20. Assemble a business case Secure buy-in Set out your delivery plan Overview of the process Securing corporate commitment and sign-up Corporate level implementation Project level implementation • Set and embed target within corporate policy and processes • Increase knowledge within company • Report annually on corporate performance • Identify opportunities and create design solutions • Engage supply chain • Measure performance at project level

21. Just a few of the 600+ signatories

22. Sector bodies • WRAP also has a category for sector bodies to sign up to the Halving Waste to Landfill Commitment • Signatories include ICE, RIBA, NFDC, UKCG, CECA, Constructing Excellence and NSCC • Should AGS sign up as a sector body? • Over 70 designers have signed the commitment, many of them members of AGS • Sends clear signal that AGS recognises importance of waste and role of designers in reducing it • Encourages other members to commit to reducing waste and report their performance

23. Sector body requirements • Advocate setting targets for reducing waste to landfill • Support and encourage sustainable procurement and supply chain engagement • Embed good practice within guidance to your members • Encourage a consistent approach to measuring performance • Promote annual reporting of overall corporate performance among your members

24. Conclusions • Designers have an important role to play in reducing waste in civil engineering projects • Many techniques are available, most well known • Reducing waste usually also reduces carbon • Structured approach enables reporting of the savings obtained by design decisions • Record decisions in Site Waste Management Plan • Commitment shown by signing up to WRAP Halving Waste to Landfill voluntary commitment • Should AGS sign up as a sector body?