Innovative graphene asphalt to be trialled on Kent roads

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Gipave,

Amey has joined forces with Kent County Council and Iterchimica to trial the use of Gipave, an asphalt supermodifier, on Kent roads

The trial of the use of Gipave will be taking place as part of the Association of Directors of Environment, Economy, Planning and Transport (ADEPT) Smart Places Live Labs programme funded by the Department for Transport.

The trial will involve resurfacing an existing road on East Hill, Dartford, with the new Gipave asphalt product.

The asphalt will extend the life cycle of the asset, reduce the costs and requirement for maintenance, as well as reducing carbon emissions and the amount of disruption to road users through limiting the amount of road works taking place.

In addition to the recycling of selected waste plastics, the asphalt containing Gipave can be entirely recycled.

What is Gipave?

Gipave is a polymeric supermodifier containing graphene and a selected type of hard plastic.

It has been used in trials of asphalt resurfacing at many sites in Italy including a number of roads and airport runways.

The product, developed by Iterchimica, is the result of a three-year research programme in collaboration with Directa Plus, G.Eco and the University of Milano Bicocca.

The graphene used in the new supermodifier is produced by Directa Plus, one of the world’s main producer and supplier of graphene-based products.

Giles Perkins, programme director for the ADEPT Live Labs initiative, said: “It’s fantastic to see our Live Labs delivering on the ground despite Covid-19.

“These have been very challenging times, but we’ve seen Kent and our other teams not only adapt to keep their programmes running but innovate further using the crisis as a catalyst for change.”

More durable asphalt

David Ogden, business director at Amey, commented: “We’re always looking for new and innovative ways to provide best value for our customers and their communities, so we’re delighted to be working with Iterchimica and our client, Kent County Council to trial this new product as part of our Live Labs programme.

“Using this technology as part of our maintenance programmes could see us create more durable asphalt that could improve customer safety, the lifespan of our roads, as well as reducing impacts on journey time which brings with it many environmental and carbon reduction benefits.”

Federica Giannattasio, CEO of Iterchimica, added: “We are proud of working together with Kent County Council and Amey on this trial, which allows us to assess the effectiveness of graphene-enhanced asphalt pavements.

“Gipave, enhanced by G+ graphene produced by our partner Directa Plus, is an innovative technology that allows to obtain longer-lasting, high-tech, sustainable and 100% recyclable asphalt pavements.

“Moreover, we are confident that it will represent a technological breakthrough also for the purposes of maintenance and new construction works, generating environmental and economic benefits.”

“Starting from this year, the new manufacturing plant allows us to begin selling a product that achieves the goals set out by the Green and Circular Economy, as well as those related to the UN Sustainable Development and the Paris Climate Agreement (2015).”

KCC cabinet member for highways and transport, Michael Payne, added: “We’ll be trialling 350m of this new material on East Hill in Dartford, alongside a further 350m with traditional surfacing, and we very much look forward to seeing the results.

“Work will start today (25 June) and we’ll be laying it on the western side which we’ve chosen to give the material a rigorous test due to the nature of the road layout and gradient.

“Once work is complete on 2 July, we’ll be closely monitoring the scheme to see how it holds up against traffic, the summer and the winter weather. We will also be carrying out laboratory testing to have a comparison against traditional materials.”

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