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ECONOMICAL AND SUSTAINABLE PAVEMENT INFRASTRUCTURE FOR SURFACE TRANSPORT

Objective

With increasing oil prices the future of asphalt roads on deep foundations is less certain, due to increased costs as well as political and environmental concerns. Alternative concrete bases can reduce the foundation layers and decrease or eliminate the asphalt topping. Concrete bases are in general more expensive but are used in heavily trafficked sections and to reduce maintenance. Concrete bases require reinforcement in the form of steel mesh. Premixed fibre reinforcement can replace the mesh and could enable the use of existing asphalt laying machines to lay the concrete. Fibre reinforcement is normally derived from virgin wire, but recent work has shown that tyre fibres offer an attractive low cost alternative solution. Recycled aggregates, PFA and low energy cements will also be employed to reduce costs and energy input. The proposed project will develop infrastructure for surface transport using slip forming techniques based on existing asphalt laying equipment and steel fibre reinforced concrete. The benefits of the new construction concept will be manifold, such as to reduce construction costs by 10-20%, reduce construction time by 15%, reduce the energy consumption in road construction by 40%, minimise maintenance, use waste materials in road construction and make tyre recycling more economically attractive. To achieve its objectives the project draws expertise from 5 countries and will have to overcome serious scientific and technological barriers in fibre processing, concrete manufacture and road design. The project will deliver new processes, design guidelines and full-scale demonstration projects in three diverse European climates and economies.

Call for proposal

FP6-2005-TRANSPORT-4
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Coordinator

THE UNIVERSITY OF SHEFFIELD
EU contribution
No data
Address
Firth Court, Western Bank
Sheffield
United Kingdom

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Participants (10)