Recycling of pre finished steel
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Unlike other construction materials:
Steel is 100% recyclable. Steel can be repeatedly recycled without degradation of performance. The intrinsic value of scrap steel ensures that it is efficiently recovered. Steel is widely recognised as easy to disassemble and segregate. Steel is the most recycled material in the world.
Recycling of pre finished steel
Typically 25% of the total charge to the steel-making vessel is steel scrap (approximately 75T). Controlled charges containing 9.5T of plastisol coated steel were added to assess possible impact upon the process. Emissions measured at primary and secondary fume extraction systems to demonstrate no additional burden from recycling of pre-finished steel.
Most construction waste should be recycled to re-enter the supply chain at the manufacture stage if it cannot be re-used.
Research suggests that 84% of construction steel is recycled with only 6% of steel cladding entering landfill. This means the cost of recycling and disposal for built-up and cladding systems varies significantly.
The main aim is to recycle as much material as possible, which requires effective separation of the steel components from the remainder of the system.
The Lackenby Steel Plant
The Lackenby Steel Plant was built in 1953 and incorporated over 20,000 tonnes of structural steel work. The plant remained in production for 20 years before becoming a material storage facility. In 2004 it reached its end of life and was demolished.
100% of the steel was recovered and recycled. This saved enough energy to supply 3700 households with their energy requirements for a year.
The new steel was manufactured as sections, plates and strip and used in a wide range of new products including parts for Heathrow Terminal 5, a new stand at The Oval cricket ground and light steel framed houses. |
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By :
Gareth Hoyle
Submitted
2010-08-27 00:11:00 |
Article From Article Mayhem
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