The purpose of this document is to list the various existingpractices for the re-use of pavement materials from surfacingsand foundation courses based on where it is intended to use themin the future. It is therefore a response to the need to constructand maintain pavements under a concern for sustainableeconomy in compliance with increasingly insistentenvironmental constraints.

Four techniques will be examined:

• in situ cold roadmixing,

• plant cold roadmixing,

• in situ hot-mix recycling,

• plant hot-mix recycling.

The first two involve road foundation materials (materialsprocessed with or without a cementitious binder) and surfacingmaterials.

The second two involve asphalt materials for surfacings andbase layers.

Each technique is presented with its advantages, scope and uselimitations