Recycling – the big picture Colin Loveday – Tarmac UK EAPA Madrid
Mature Road Systems • Established network • Construction reducing • Maintenance dominant EAPA Madrid
Valuable Asset • UK principal network £85 billion • Only 5% of total network • £100s Billion • Much of it is asphalt! EAPA Madrid
Pressures on the road owner • Money • Sustainability • Climate change EAPA Madrid
Money • Unfortunately they don’t have any • Hopefully that will change! EAPA Madrid
Sustainability growing in importance • Sustainability business as usual • Focussing on priorities – Sustainable consumption and production – Climate change and energy – Protecting our natural resources and enhancing our environment – Creating sustainable communities and a fairer world • Clearer direction for the supply chain EAPA Madrid
“achieving four objectives at the same time: • Effective protection of the environment • Prudent use of natural resources • Social progress which recognises the needs of everyone • Maintenance of high and stable levels of economic growth and employment”(OGC) EAPA Madrid
Action Plan 2009-10 • Embed sustainability and carbon considerations in HA decision making processes through the delivery and application of research on: -whole life sustainability and carbon - application of HA carbon management strategy EAPA Madrid
Carbon management • Information collated via carbon calculation tool will underpin our carbon management strategy. • Measuring footprint has enabled us to understand the sources of our emissions. • Subsequently identify emission reductions, savings and set targets. EAPA Madrid
Climate Change Adaptation Strategy • Defining climatic changes • Assessing and prioritising risks • Examining adaptation options – Cost benefit analysis – Timescales for adaptation • Adaptation plans • Implement adaptation measures EAPA Madrid
Asphalt • Flexible • Practical • Versatile • Self healing • Smooth Quiet • Durable • AND……….. EAPA Madrid
Recyclable • Asphalt is 100% recyclable as asphalt EAPA Madrid
Recycling asphalt • Hot • Warm • Cold • Emulsion • Foam • In situ • Repave • Retread EAPA Madrid
But surely, concrete is recyclable? • Only up to a point • It’s ‘Downcyclable’ • Concrete is recyclable as aggregate • That is not good in carbon terms EAPA Madrid
asPECT Embodied Carbon Tool EAPA Madrid
asPECT – LCA assessment of CO2e 1) Raw 6) Transport to 8) Scheme Use 9) Maintenance Materials Site Specific Works 2) Transport 7) Laying & 10) End of Life Compacting 3) Processing 4) Transport 5) Component Production PRODUCT APPLICATION WHOLE LIFE CARBON ASSESSMENT EAPA Madrid
CO 2 e Installed – average value kgCO 2 e/t % % Aggregate 6 13 11 Filler 1 2 2 Bitumen 16 33 29 Energy –dry/heat 20 42 36 Energy–mix/other 5 10 9 TOTAL 48 100 Delivery 30Km 3 6 Installation 4 7 TOTAL INSTALLED 55 100 EAPA Madrid
Carbon Benchmarking • Now that we know hot asphalt is about 45kg CO2e per tonne we can start comparing Asphalt with asphalt Asphalt with other things 18 EAPA Madrid
Let’s try orange juice 19 EAPA Madrid
Nice healthy natural product 20 EAPA Madrid
Tesco make this really easy 21 EAPA Madrid
Carbon Benchmarking Hot asphalt 45kg CO2e/tonne Orange juice 1600kg CO2e/tonne 22 EAPA Madrid
Carbon Benchmarking • Bitumen is 260 kg/tonne • Cement is 930 kg/tonne • Asphalt approximately 50kg/tonne • Concrete around 100 kg/tonne EAPA Madrid
Recoverable Carbon kgCO 2 e/t % % Aggregate 6 13 11 Filler 1 2 2 Bitumen 16 33 29 Energy –dry/heat 20 42 36 Energy–mix/other 5 10 9 TOTAL 48 100 Delivery 30Km 3 6 Installation 4 7 TOTAL INSTALLED 55 100 42% of embodied carbon recovered on recycling EAPA Madrid
Recoverable carbon • Recycled concrete is aggregate • Effective embodied carbon value 6kg/tonne • About 5% of embodied carbon recovered on recycling EAPA Madrid
Pavement Carbon 80 MSA Design - CO2e/m 2 Design 1 Design 2 Flexible Rigid/Reinforced 35mm SMA 5 35mm SMA 5 60mm EME2 200mm C32/40 27 92 (reinforced) 175mm EME2 200mm FC3 12 150mm FC3 9 TOTAL 44 TOTAL 106 EAPA Madrid
Positive story? • Asphalt pavement 42% CO2e of concrete pavement • 42% of asphalt CO2e recovered on recycling • 5% of concrete CO2e recovered on recycling EAPA Madrid
Rejoice! • Asphalt is 100% recyclable as asphalt EAPA Madrid
European Asphalt Mine • UK 40 years 1.2 billion tonnes • UK 100 years 2.5 billion tonnes? • Europe 50 billion tonnes? • Enormous ‘linear quarry’ EAPA Madrid
Maintenance Strategies • Recognise value of asphalt asset • Develop strategy for sustainable preservation of the asset • May involve more structural renewal EAPA Madrid
ALARM Survey EAPA Madrid
Pressures on Budget • Reactive Maintenance: • 27% (Ideal 16%) England: 24% London: 28% Wales: 29% • • Premature Maintenance (trench reinstatement): England 12% London 15% Wales 11% • • (2009 9%) (2009 23%) (2009 24%) • Mitigating Insurance Claims: England 19% London 22% Wales 18% • • (2009 19%) (2009 32%) (2009 17%) EAPA Madrid
Clearing the backlog Av no of years before resurfacing(all roads) 120 England: 100 11.5 years 80 2004/5 London: 2005/6 2006/7 60 2007/8 8.6 years 2008/9 2009/10 40 Wales: 20 14.9 years 0 England (excl London) London Wales EAPA Madrid
ALARM Conclusions • Inadequate funding • Maintenance increasingly superficial EAPA Madrid
Promote need for deeper maintenance EAPA Madrid
Climate Change Adaptation Strategy • Defining climatic changes • Assessing and prioritising risks • Examining adaptation options – Cost benefit analysis – Timescales for adaptation • Adaptation plans • Implement adaptation measures EAPA Madrid
Some climate change is unavoidable… Determined by current & future emissions Predetermined by historic emissions, inevitable EAPA Madrid
Is this the shape of the future? EAPA Madrid
The real challenge is water 20% increase in winter rainfall Damage within EAPA Madrid
Proactive maintenance • Without proper maintenance we shall grind to a halt! EAPA Madrid
Proactive maintenence • 40 year design life? • Planned structural enhancement of 2.5% of network per annum • Planned recycling of asphalt ‘asset’ • Protection against climate change EAPA Madrid
Preserve recyclability EAPA Madrid
Preserve recyclability 109 years later EAPA Madrid
By Products and Waste into asphalt Slag Glass Paper IBA EAPA Madrid
Ensure reuse at end of working life Make sure that over enthusiastic use of other industry’s waste does not shorten life expectancy of our product or compromise recyclability. EAPA Madrid
Summary • Full recyclability of asphalt is a great positive. • Asphalt in the road is a huge asset • Carbon footprint of asphalt is a positive story. • Sustainability pressures are growing. • Superficial maintenance is not sustainable • Proactive structural maintenance is good economically and environmentally • Don’t compromise future recyclability EAPA Madrid
Shout about it! •Asphalt is 100% recyclable as asphalt EAPA Madrid
colin.loveday@tarmac.co.uk EAPA Madrid
EAPA Madrid
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