A project reusing clean waste concrete from Dounreay’s decommissioning work by turning it into hardcore and aggregate has produced 38,000 tonnes of recycled material.
It is DSRL’s strategy to recycle demolition rubble as part of their commitment to the environment.
The site’s latest demolition, that of Craig More House, produced one thousand tonnes of rubble that will be re-used, saving the site money.
The rubble is taken in lorry loads to a compound to the east of the licensed site, where it is processed in the aggregate production and recycling facility. The concrete is crushed and any metal reinforcing bar removed by magnets before it is screened into size categories. This produces aggregate, drainage material and topsoil, which is then re-used in projects at Dounreay.
A total of 38,000 tonnes of concrete and rubble has been through the facility in the last six months, saving the site £76,000 in landfill costs alone.
DSRL project supervisor Alistair Simpson has been co-ordinating the operations in conjuction with sub-contractor Johnson Controls and local firm A&W Sinclair. He said that the crushing has now come to an end for the time being.
“We have re-used a significant amount of aggregate both on and off-site. Several thousand tonnes have been used in the new LLW repository project, to provide temporary roads and hardstanding so that the enabling works can go ahead,” he explained.
“We also used tonnes of reclaimed topsoil to reinstate and landscape the area next to PFR, following the demolition of DN023", added JCL manager Peter Swanson.
The remaining aggregate will be stockpiled and used the next time Dounreay has a hole that needs to be filled in and landscaped.