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FRAP/RAP

Reclaimed asphalt pavement (RAP) is the term given to removed and/or reprocessed pavement materials containing asphalt and aggregates. These materials are generated when asphalt pavements are removed for reconstruction, resurfacing, or to obtain access to buried utilities. When properly crushed and screened, RAP consists of high-quality, well-graded aggregates coated by asphalt cement.

In the past, it was standard practice for hot mix producers to process RAP down one size before introducing back into the HMA (Hot Mix Asphalt) plant. There is another process called “Fractionation” (FRAP) gaining acceptance throughout the asphalt industry for many reasons. When RAP is fractionated, it is split down to multiple sizes. This new process allows HMA producers to incorporate higher percentages of RAP and maintain better control of the end product.

Any recycled product is worth at least as much as what it replaces. But, if the material is processed and treated like virgin material, its value can be enhanced. By fractionating reclaimed asphalt, operators can use a higher percentage of RAP, helping to lower costs while maintaining a high-quality asphalt mix.