Facts & Figures Book - KPI-JCI

ago. Current specificationsallow theartificial softening ofharder asphalts andlead to liquids with highpercentages of volatilesand less bindingstrength than the originalliquid. Even wherecurrent liquids are usedtoday, the light oils aregenerally evaporatedduring mixing and placement and over a period of time resultingin purer asphalt occurring in the recycled product.In addition, aggregates that tend to be absorptive only absorb theliquid asphalt one time. The recycled product, when combinedwith new aggregate, often will have a thicker film due to the factthat absorption does not occur but once in the RAP portion of themix. Perhaps the best description of recycling could be summedup by the words of a Japanese customer (who was the first torecycle in Japan). When asked what he told his customers concerningrecycle, he said “it’s all the same age.”Screenin g171171