An innovative asphalt plant is allowing the use of recycled materials and achieving major cost benefits - Mike Woof reports. UK construction firm FM Conway is seeing the benefit of the €11.5 million (£10 million) it has invested in its asphalt production facilities at Erith in Kent, close to UK capital London, since buying the site in 2005. The biggest single investment in the facility has been a new Benninghoven asphalt plant, which was commissioned in June 2010 and is now the core of the Erith operation.