Recycling the big picture Colin Loveday Tarmac UK EAPA Madrid - - PowerPoint PPT Presentation

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Recycling the big picture Colin Loveday Tarmac UK EAPA Madrid - - PowerPoint PPT Presentation

Dec 04, 2022 366 likes •869 views

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

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SLIDE 1

EAPA Madrid

Recycling – the big picture Colin Loveday – Tarmac UK

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SLIDE 2

EAPA Madrid

Mature Road Systems

  • Established network
  • Construction reducing
  • Maintenance dominant
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SLIDE 3

EAPA Madrid

Valuable Asset

  • UK principal network £85

billion

  • Only 5% of total network
  • £100s Billion
  • Much of it is asphalt!
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EAPA Madrid

Pressures on the road owner

  • Money
  • Sustainability
  • Climate change
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EAPA Madrid

Money

  • Unfortunately

they don’t have any

  • Hopefully that will

change!

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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
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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)

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SLIDE 8

EAPA Madrid

  • Embed sustainability and carbon considerations in HA decision making

processes through the delivery and application of research on:

Action Plan 2009-10

  • whole life

sustainability and carbon

  • application of HA

carbon management strategy

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SLIDE 9

EAPA Madrid

  • 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.

Carbon management

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SLIDE 10

EAPA Madrid

  • Defining climatic changes
  • Assessing and prioritising risks
  • Examining adaptation options

– Cost benefit analysis – Timescales for adaptation

  • Adaptation plans
  • Implement adaptation measures

Climate Change Adaptation Strategy

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SLIDE 11

EAPA Madrid

Asphalt

  • Flexible
  • Practical
  • Versatile
  • Self healing
  • Smooth Quiet
  • Durable
  • AND………..
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EAPA Madrid

Recyclable

  • Asphalt is 100% recyclable as asphalt
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EAPA Madrid

Recycling asphalt

  • Hot
  • Warm
  • Cold
  • Emulsion
  • Foam
  • In situ
  • Repave
  • Retread
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SLIDE 14

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

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EAPA Madrid

asPECT Embodied Carbon Tool

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EAPA Madrid

WHOLE LIFE CARBON ASSESSMENT PRODUCT

asPECT – LCA assessment of CO2e

1) Raw Materials 2) Transport 3) Processing 5) Component Production 4) Transport 6) Transport to Site 7) Laying & Compacting Use 10) End of Life 8) Scheme Specific Works

APPLICATION

9) Maintenance

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EAPA Madrid

CO2e Installed – average value

kgCO2e/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 TOTAL INSTALLED 4 7 55 100

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EAPA Madrid 18

  • Now that we know hot asphalt is about 45kg

CO2e per tonne we can start comparing  Asphalt with asphalt  Asphalt with other things

Carbon Benchmarking

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EAPA Madrid 19

Let’s try orange juice

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EAPA Madrid 20

Nice healthy natural product

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EAPA Madrid 21

Tesco make this really easy

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EAPA Madrid 22

Carbon Benchmarking

 Hot asphalt 45kg CO2e/tonne  Orange juice 1600kg CO2e/tonne

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EAPA Madrid

Carbon Benchmarking

  • Bitumen is 260 kg/tonne
  • Cement is 930 kg/tonne
  • Asphalt approximately 50kg/tonne
  • Concrete around 100 kg/tonne
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EAPA Madrid

Recoverable Carbon

kgCO2e/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 TOTAL INSTALLED 4 7 55 100

42% of embodied carbon recovered on recycling

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EAPA Madrid

Recoverable carbon

  • Recycled concrete is aggregate
  • Effective embodied carbon value 6kg/tonne
  • About 5% of embodied carbon recovered on recycling
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EAPA Madrid

Pavement Carbon

Design 1

Flexible

Design 2

Rigid/Reinforced

35mm SMA 5 35mm SMA 5 60mm EME2 27 200mm C32/40 (reinforced) 92 175mm EME2 200mm FC3 12 150mm FC3 9 TOTAL 44 TOTAL 106

80 MSA Design - CO2e/m2

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EAPA Madrid

Positive story?

  • Asphalt pavement 42% CO2e of

concrete pavement

  • 42% of asphalt CO2e recovered
  • n recycling
  • 5% of concrete CO2e recovered
  • n recycling
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EAPA Madrid

Rejoice!

  • Asphalt is 100% recyclable as

asphalt

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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’
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EAPA Madrid

Maintenance Strategies

  • Recognise value of asphalt asset
  • Develop strategy for sustainable preservation of the asset
  • May involve more structural renewal
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EAPA Madrid

ALARM Survey

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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%)
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EAPA Madrid

Clearing the backlog England: 11.5 years London: 8.6 years Wales: 14.9 years

Av no of years before resurfacing(all roads) 20 40 60 80 100 120 England (excl London) London Wales 2004/5 2005/6 2006/7 2007/8 2008/9 2009/10

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EAPA Madrid

ALARM Conclusions

  • Inadequate funding
  • Maintenance increasingly superficial
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EAPA Madrid

Promote need for deeper maintenance

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EAPA Madrid

  • Defining climatic changes
  • Assessing and prioritising risks
  • Examining adaptation options

– Cost benefit analysis – Timescales for adaptation

  • Adaptation plans
  • Implement adaptation measures

Climate Change Adaptation Strategy

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SLIDE 37

EAPA Madrid

Some climate change is unavoidable…

Determined by current & future emissions Predetermined by historic emissions, inevitable

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EAPA Madrid

Is this the shape of the future?

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EAPA Madrid

The real challenge is water

20% increase in winter rainfall Damage within

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EAPA Madrid

Proactive maintenance

  • Without proper

maintenance we shall grind to a halt!

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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

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EAPA Madrid

Preserve recyclability

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EAPA Madrid

Preserve recyclability 109 years later

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EAPA Madrid

By Products and Waste into asphalt

Slag Glass Paper IBA

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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

  • r compromise recyclability.
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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
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EAPA Madrid

Shout about it!

  • Asphalt is 100%

recyclable as asphalt

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SLIDE 48

EAPA Madrid

colin.loveday@tarmac.co.uk

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EAPA Madrid