4. Fields of application

4.1 Possible re-uses in accordance with contract specifications

The figure 2 taken from the Rhône-Alpes Guide indicates, with reference to the GTR for the F7 family of demolition materials, the main areas of potential reuse of sand and recycled materials (sand, gravel, gravel), with a view to their recovery as materials for :

• backfill** and subgrade (including levelling layer) for earthworks ;

• trenches for sewerage, drainage or network installation;

• pavement bases for pavement laying.