EcoLanes - Economical and sustainable pavement infrastructure for surface transport
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1 EcoLanes - Economical and sustainable pavement infrastructure for surface transport Dott. Ettore Musacchi ETRA, European Tyre Recycling Association
2 Outline Concrete road pavements and fibres from tyre-steel cord EcoLanes overview Benefits from EcoLanes
3 Surface transport infrastructure EU infrastructure: 600bn up to 2010 for maintenance and extension of network - respond needs of enlarged EU - benefit single market Road pavements main element of infrastructure - Flexible: Asphalt concrete - Rigid: Portland cement concrete
4 Road pavements Flexible pavements: Deep foundations / multi layer construction Energy consumption due to transportation of materials Increasing cost of asphalt due to high oil prices Rigid pavements Single layer Generally last longer May require asphalt topping due to noise / comfort issues Conventional rigid pavements more expensive than flexible
5 Rigid pavements Use steel reinforcement to - improve mechanical properties Plain Concrete SFRC SFRC ٢% ٢% shredded shredded fibres fibres - reduce pavement depth Steel fibres reduce costs associated with rebar placement Concrete mixes - wet / slip forming (laborious - require side formwork) - dry / roller compaction (fast cost effective) Difficult to add fibres in roller-compacted concrete
6 EcoLanes background: University of Sheffield research on tyre recycling ( Tyre shredding: S R S F Microwave induced pyrolysis of whole tyres: PR S F AMAT LTD
7 EcoLanes background UoS research proved that tyre-fibres (e.g PRSF) can be as effective as industrially-produced fibres (ISF). ٧٠ Bending load [kn] ٦٠ ٥٠ ٤٠ ٣٠ PRSF ٦% ISF-١ ٦% ISF-٢ ٦% ٢٠ ١٠ ٠ ٠ ١ ٢ ٣ Mid-span deflection [mm] ٤
8 EcoLanes background Aggregate Industries Ltd UK (AI) / Holcim Precast concrete products Contractors for all types of pavement surfacing and construction Major supplier of aggregate / asphalt / cement But interested in concrete road pavements - future competitiveness (uncertain future of asphalt) - environmental issues (CO2 trading scheme)
9 EcoLanes background AI s interest in road pavements - research collaboration between AI and UoS - funded a year s Fellowship for further research & preparation of proposals on concrete roads
10 EcoLanes Development Steel-Fibre-Reinforced Roller-Compacted-Concrete Road Pavements
11 No. Participant organisation name Country 1 The University of Sheffield (concrete) United Kingdom 2 Akdeniz University (environmental) Turkey 3 Technical University Gheorghe Asachi Iasi (transportation) Romania 4 European Tyre Recycling Association (environmental policy) France 5 Aggregates Industries UK Ltd (concrete materials & pilot demonstration) United Kingdom 6 Antalya Municipality (demonstration) Turkey 7 Romanian National Road Authority (demonstration) Romania 8 9 Adriatica Riciclaggio e Ambiente s.r.l.* (tyre recycler) Public Works Department (demonstration) Italy Cyprus
12 EcoLanes Outline Call: FP Transport-4 Type of instrument: Specific Targeted Research Project (STREP) 9 partners, 9 work packages, 633 man-months total cost ~ 2.5m Reference Number: Submitted: 1 September 2005 Evaluated: October 2005 Contract Negotiations: March August 2006 Start of contract: 1 October 2006 End of contract: 30 September 2009
13 EcoLanes Objectives Develop infrastructure for surface transport using: Roller-compacted techniques based on existing asphalt laying equipment Steel fibre reinforced concrete Concept of long-lasting-rigid-road-pavements The project aims to reduce: Construction costs by 10-20% Construction time by 15% Energy consumption in road construction by 40%, Maintenance And to Use waste materials Make tyre recycling more economically attractive
14 EcoLanes work plan Project Steering and Management Committee Exploitation Manager WP8 Demonstration Management Group Dissemination & Exploitation Project Coordinator Technical Management Group WP1 Fibre sorting WP3 WP2 FRC Pavement Testing, Analysis, Design WP5 Demonstration in W. Europe WP6 Demonstration in E. Europe WP7 Demonstration in E. Mediterranean Tasks Coordination Team WP4 Environ. Studies & Site Processes WP9 Project Management
15 WP 1: Fibre Sorting Leader: AD.RI.A (Italian Tyre Recycler) Develop techniques and equipment: Post-processing steel fibres extracted from tyres Arrive at fibres suitable for incorporation in concrete
16 WP 2: Fibre-reinforced Concrete Leader: The University of Sheffield (United kingdom) Develop steel fibre-reinforced concrete mixes: Suitable for slip forming and roller compaction Use recycled materials, low energy cements
17 WP 3: Pavement testing, analysis and design Leader: Technical University of Iasi (Romania) Develop long-lasting-rigid-road-pavement concept: Accelerated load tests (facility ALT-LIRA) 115kN axle load 1.5 million cycles: 30 years (600 trucks /day) Durability (climate) tests Develop design guidelines for LLRRPs
18 WP 4: Environmental studies & site processes Leader: Akdeniz University (Turkey) Develop life-cycle cost tool to assess environmental impact: Site construction processes Long-last-rigid pavements (LLRRP) Develop optimised processes for constructing LLRRPs: Use of existing asphalt equipment
19 WP 5-7: Demonstrations Leaders: Aggregate Industries (UK), DRDPIASI (RO), Antalya Municipality (TR) Construct four concrete roads in rural and urban Freeze/thaw damage European environments Eliminate the problem of road deterioration due to cold and wet environments Eliminate the problem of asphalt displacement due to hot weather M echanical clearing
20 WP 8: Dissemination and Exploitation Leaders: European Tyre Recycling Association (France), Sheffield University Entrerprices Ltd (UK) Focus the project on developing solutions needed for transport infrastructure Develop technology implementation plan (IPR) Disseminate research findings: - website ( - 2 industrial seminars
21 WP 9: Project Management Leader: The University of Sheffield (United Kingdom) Optimise application of technical resources Ensure compliance with the project objectives Ensure efficient communication within the project Ensure that all aspects of the EC requirements for communication and reporting are met
22 EcoLanes expected output Tyre-recycled steel fibres: Processes & machinery to sort and clean shredded fibres Steel-fibre-reinforced RCC rigid pavements Processes and machinery to disperse steel fibres in RCC Use of waste materials Analysis and design software for concept of LLRRPs Surface transport infrastructure Reduction of construction time and cost Reduction of energy consumption during construction
23 Benefits for tyre recyclers P rice of industrial fibres: 650 ~ per tonne 150 ~ 300 per tonne E conomic benefits for tyre recycling industry M etric tonnes (millions) Initial market value of R S F: Potential annual amount of RS F (based on steel content of 15% by weight) EU - Total Arisings EU - M aterial Recovery Tyres S teel fibres
24 Benefits for tyre recyclers Use of recycled tyre-cord in concrete construction Provide sustainable market for recycled tyre-cord Encourage material recovery of large amounts of tyres Facilitate implementation of EC directives
25 Benefits for construction industry Low-cost steel-fibre reinforcement Economic method for road construction Reduction of industry s CO2 emissions Access to construction innovation
26 The presentation is available online : Thank You
27 Background Notes
28 Placing of RCC in truck Placing of RCC in paver From mixing to rolling ~ ½ hour Placing of RCC pavement Rolling of RCC pavement Layers: mm, up to 250 mm (with high density paver)
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