Asphalt Hot-Mix Recycling

Prominent among the concerns of the pavement construction industry, and funding agencies everywhere, are the conservation of materials, protection of the environment,  And economy of construction/rehabilitation procedures. Pavement recycling with asphalt is a procedure that eminently and realistically meets these concerns, especially since it is economical of energy, materials, and money.

In asphalt pavement recycling, materials reclaimed from old pavement structures are reprocessed along with some new materials to produce asphalt mixtures meeting all normal specification requirements. The recycled mixtures may be placed on the same roadbeds from which the reclaimed materials came; but they can be used anywhere that asphalt mixtures are needed.

Asphalt recycling is not new; its history stretches back several decades.However, increasing economic and environmental needs have brought added emphasis and many technical refinements to recycling processes.Recycled pavements vary widely in their contents of reclaimed materials, new aggregates, asphalt, and recycling agents. Reclaimed pavement materials may range from as little as 10 percent to as much as 70 per-cent of the final mixture. The vast majority of the projects, however,incorporate between 10 and 50 percent reclaimed asphalt pavement in the final mixture.

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