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Tarmac secure £3 million EfW plant deal

Company to supply 38,000 cubic metres of concrete, including innovative TopProof water-resistant mix

TARMAC have been selected to supply specialist concrete for a new energy-from-waste (EfW) plant at Trident Park, in Cardiff.

The £3 million contract will see the company supply 38,000 cubic metres of concrete, including a large volume of TopProof, Tarmac’s high-quality water-resistant concrete, for the construction of the £250 million plant, which is being developed by operator and waste-management company Viridor.

The innovative water-resistant concrete has been specified by Lagan Construction Ltd and will be used to construct the facility’s waste-transfer bunker.

TopProof removes the need for external membranes that are often used to create watertight concrete, cutting material and labour costs as well as minimizing the chances of early failure caused by shrinkage and cracking.

The concrete is 100% recyclable, helping to deliver additional BREEAM points for clients, and, because it is laid in exactly the same way as conventional concrete, does not require specialist skills and equipment.

When completed in January 2014, the Trident Park EfW plant will process up to 350,000 tonnes of waste per annum and produce 30MW of energy a year using combined heat and power (CHP) technology, which will be provided to the National Grid.

Commenting on the selection of TopProof, Ken Frayling, account manager at Tarmac, said: ‘Traditional concrete mixes typically contain fine pores which allow moisture to penetrate the surface and pass through. TopProof provides a watertight finish because the concrete pores are filled to create a high-density mixture, making it an ideal product for this EfW application.

‘By removing the need for costly external membranes, we can help customers deliver a watertight solution while cutting build costs.’

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