Future uses for building-site waste
What happens then to building-site waste, once it has been washed, sorted and inspected in Paprec factories? What are the final stages in recycling rubble? What does the future hold for inert and hazardous waste? Put into separate cells or tipped onto the ground in factories, it is sometimes ready to be re-incorporated into various production processes. So let us now explore their future outlets and take stock of the ways in which they are re-used.
Re-use of inert waste
These materials, comprising rubble, stone, concrete, cement, breeze blocks, bricks and glass are fully recyclable and amount to 60% of the building site waste collected by Paprec Group. Once the rubble and similar items in this materials category have been removed and sorted, the sale of this inert building and public works waste is centralised in the group's trading unit, FCR, which will determine its ultimate destination, most often road construction. Once collected, crushed or treated with lime (for excavation spoil) by specialist companies, inert waste will be used as trench-fill or in various base layers for roads (i.e. build-up layers and beds for road surfaces, the two layers that support the upper part of ground-works).
What happens to hazardous waste
These types of waste, found in building-site skips , include, as the name suggests, any type of material harmful to man or the environment. This construction waste can sometimes be recovered but requires special treatment and very specific procedures, as laid down in hazardous waste regulations. Asbestos, mastic, tar, oils, Class C (i.e. painted or varnished) wood and even polluted soil come under this final waste category. On completion of building-site waste sorting operations, waste is buried by some building-site waste management specialists , such as Paprec Group, in isolated compartments in their storage installations. Although it is possible to recycle asbestos materials, the process is expensive and rarely used. As for paints, they are treated, neutralised, incinerated or stored in special centres, as required by building-site waste management regulations.
Discover the different steps of the recycling of construction waste :
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