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8 Sustainable solutions that won’t cost the earth 9 AGGREGATES Enviroaggs Secondary Enviroaggs Secondary is a full range of construction aggregates (including concreting aggregates), fills, hardcores and sands, produced from mineral waste generated from the extraction of China Clay in Cornwall. Asphalt products can be produced using a proportion of these aggregates. SUSTAINABILITY CRITERIA Bardon Aggregates currently re-processes in excess of 1.5 million tonnes of China Clay waste annually, which would otherwise be sent to tips. This represents about 7.5% of the overall tipping carried out by clay producers. Case Study A30, Goss Moor, Enviroaggs Secondary Bardon Aggregates, Bardon Contracting and Needham & Cullen were involved in the largest construction project of its kind in the South West, to construct a new by-pass on the A30 at Goss Moor near Indian Queens in Cornwall. Working in association with main contractor, Alfred McAlpine, this unique project is the first ever major national network highway road built using almost entirely secondary aggregates. Figures suggest that in excess of 90% of the imported materials were secondary aggregates derived from the waste generated by the China Clay industry. The China Clay industry generates waste at a high ratio to finished product, usually around the 9 tonnes of waste to 1 tonne of finished clay product. Currently some 20 million tonnes of waste is generated per annum. This particular method was very successful and has reduced wastage considerably. Call 0845 600 0860 or visit www.bardon-aggregates.com for more information about Enviroaggs Secondary Bardon Enviroaggs Secondary Enviroaggs Crushed Concrete Supplied by Supplied by Enviroaggs Crushed Concrete A Type 1 sub-base produced from crushed concrete and utilities arisings, which is fully compliant with Clause 803 of the Highways Agency specification. SUSTAINABILITY CRITERIA 100% recycled material, otherwise destined for landfill, which preserves primary rock reserves. Call 0845 600 0860 or visit www.bardon-aggregates.com for more information about Enviroaggs Crushed Concrete
10 Sustainable solutions that won’t cost the earth 11 AGGREGATES Garside Glass Sand Garside Sands is working towards a sustainable future through the development of ‘Glass Sand’ a sustainable alternative and complementary addition to its portfolio of silica sand products. The glass sand produced for Garside Sands is made from post-consumer bottle waste of all colours and is processed by implosion rather than crushing. A number of grades can be produced, from ultra-fine to coarse, each lending itself to a number of applications either used alone or blended with sand. Depending on performance or aesthetic requirements the proportion of the sand and glass in the blend can be varied. Waste and Resources Action Programme (WRAP) has undertaken a number of studies, with encouraging results, into various applications of glass sand as alternative to silica sand. It is hoped that glass sand may provide a sustainable filter media for water filtration and other industrial and decorative applications where silica sand is currently used. SUSTAINABILITY CRITERIA Glass Sand has been assigned the sustainability icon as it uses a potential waste material. Made from recycled bottle glass, the product will provide an alternative to virgin material. Case Study West Kent Golf Club, Sustainable Glass Sand blend for bunkers In response to a need for a more stable bunker sand at West Kent Golf Club, Garside Sands developed a sustainable solution of a sand blend containing 20% recycled Glass Sand. From a performance point of view, Glass Sand can be used as a replacement to the traditional natural bunker sand. The Glass Sand is produced from the surplus of recycled bottle glass in the UK as a result of the volume of wine imports, and provides similar characteristics to natural silica sand. As well as offering a more sustainable product, the addition of the Glass Sand to the bunker sand blend maintains a more even distribution in steep sided bunkers as at West Kent Golf Club. It also results in less ‘plugging’ and offers greater stability underfoot, giving members a safer, and more sustainable, playing environment. Call 01525 237911 or visit www.garside-sands.com for more information about Garside Glass Sand Supplied by Supplied by Enviroaggs Secondary Bagged A range of six products: China Clay secondary (reclaimed) aggregate, building sand, slate waste and pre-cast concrete waste. Packaging is 100% recycled waste plastic. SUSTAINABILITY CRITERIA All products comprise 100% reclaimed material that is locally sourced and would otherwise be disposed of as waste. Enviroaggs Secondary Blend A blend of 40mm graded and locally sourced secondary aggregate and sharp sand for use as a sub-base material under pathways and driveways. SUSTAINABILITY CRITERIA Locally sourced secondary aggregate material, which preserves virgin aggregate supplies. Call 01530 510066 or visit www.aggregate.com for more information about Enviroaggs Secondary Bagged and Secondary Sand Blend
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Page 8 and 9: 12 READY-MIXED CONCRETE London Clay
Page 10 and 11: 16 Bradstone Old Town Conservation
Page 12 and 13: 20 ASPHALT Bardon ASHphalt Bardon A
Page 14 and 15: 24 COMPLEMENTARY SERVICES Bardon Co
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