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Branch Report: 15th November 2006

Sustainable Aggregate Solutions

On Wednesday 15th November, the venue for the technical evening was the Glamorgan Arms, Pontlliw, near Swansea. For the first time for a number of years the South Wales branch moved its technical night further west to accommodate the faithful West Wales contingency.  31 branch members enjoyed a presentation given by branch committee member, Graham Bishop of the Wales Environment Trust, on ‘Sustainable Aggregate Solutions’.  The evening was kindly sponsored by Bardon Aggregates.

Graham provided a background on the Wales Environment Trust in that it is a private not for profit organisation which offers a free consultancy service helping to provide solutions for a number of waste streams and developing markets for recyclates.  They also have a specific waste coordinator who assists 10 Unitary authorities waste managers achieve best practice solutions for their municipal waste.  The Trust’s aggregate programme is funded by the Welsh Assembly Government ‘Aggregate Levy sustainability Fund’.

The need for recycling was reiterated as there is currently a demand for 23 million tpa of aggregate in Wales and the Welsh Assembly Government Minerals Planning Policy Wales states that whilst there should be adequate supply of aggregates, natural resources should be conserved and the use of recycled products maximised in line with sustainable objectives.  Thus planning for mineral extraction may become more difficult.  Combine this with the landfill availability problem in Wales, the need to divert inert waste into recycling is paramount. 

The old British standards, which did not include the use of recycled aggregates, have been superseded by the new European Standards, which permit the use of recycled aggregate.  This coupled with customers wanting to improve their green credentials and being required to hit recycling targets, means that this area of the market is rapidly expanding. 

Examples of the various types of recycling were presented with actual case studies of successful operations, which had received information and support from Graham and his colleagues at the Wales Environment Trust.