The "Grand Paris" (Greater Paris) challenge

On the eve of the start of a huge project, i.e. the construction of 200 kilometres of the future automatic Grand Paris Express metro line, plus the complete renovation of areas bordering the new infrastructure, recycling companies able to treat demolition-, reconstruction- and construction-site waste, like Paprec Group, are preparing themselves to face up to an absolutely colossal challenge.

Rubble, Paprec Group

A Big Gamble

The construction plant used on the major sites in Ile-de-France should, in effect, generate the equivalent of five to seven thousand Olympic-size swimming pools of rubble and earth  between 2015 and 2030, i.e. 20 million cubic metres of inert waste.
 
Three quarters of this public works and construction-site waste will be produced by the digging of tunnels and the volumes of demolition, reconstruction and construction site waste coming from the construction of buildings, as mentioned above. To organise the evacuation of waste, the removal of rubble and the re-use of construction-site waste, Société du Grand Paris (SGP) has, since 2010, been carrying out a rigorous survey of construction-site waste treatment installations capable of taking such waste from Ile-de-France. The specific aim is to spread the management of building-site waste over the entire Ile-de-France area, but also to put the emphasis on re-using the waste and recycling rubble. 
 
Discover the different steps of the recycling of construction waste : 
 

Paprec Group's contribution

Paprec Group, already able to rely on its two specialist waste sorting lines in the region, will use its expertise and the sophistication of its installations to assist construction sites with the removal of rubble and other quantities of waste produced, particularly during renovations. These are operations that do not just produce the packaging waste typical of new constructions, but also older and often mixed materials.
 
Inert but complex waste, which will require ultra-efficient sorting to achieve maximum recovery, and the involvement of construction-site waste sorting companies accustomed to collecting skips of mixed materials, the relatively cramped conditions on some sites making it impossible to have multiple skips for pre-sorting waste.
 
With the regional policy also envisaging the creation of  new construction-site waste sorting centres, this immense construction site should therefore become  a big project, not only an urban one, but also an ecological and industrial one, when the city has been re-built over itself.

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