14.  Conclusion

Waste is one of the major problems of the 21st century.

The result of an uncontrolled consumer society, they are invading the world, land and sea alike. Some countries are reacting by creating waste policies. Europe has created a six-figure classification according to main producer, waste properties or production sector. The French classification is also based on a breakdown: 325 Mt of waste, of which 238 Mt is from the building and public works sector (182 Mt from public works and 56 Mt from construction). These figures show an average annual increase of 3%.

Regulations cover all players, and are moving towards waste sorting on site or in specialized units, through direct deposit or collection and distribution, so that some waste leaves the status of waste for recovery, enabling it to rejoin the production sector, while the rest is landfilled...