Full Depth Recycling or Full Depth Reclamation, also called FDR, is a process that rebuilds worn out asphaltpavements by recycling the existing roadway. The old asphalt and base materials are pulverized using a reclaimer. On top of the pulverized material water is added to reach the optimal moisture content for compaction, and then dry cement is spread for stabilization. A reclaimer is used again, this time to mix all the materials. After shaping and grading, the new base is compacted to produce a strong, durable base for either an asphalt or concrete surface. Asphalt is a type of bitumen, a highly viscous liquid that occurs naturally in most crude petroleums. ... This article is about the American English usage of pavement as the durable surfacing of roads and walkways. ... In the general sense, a cement (Latin caementum) is any material with adhesive properties. ...
The advantage of this process is that it recycles the materials in-situ, there is no need to haul in aggregate or haul out old material for disposal. The overall truck traffic from construction is reduced and there is no need for detours since it can be done under traffic, making this process more convenient for local residents.
FDR with cement saves money and natural resources while preserving natural resources by using existing materials and conserving virgin aggregates. The road performance is improved through cement stabilization, building a stronger, low-maintenance road that will last for many years.
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