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Alternative Title:Recycling of Asphalt Concrete Pavements
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Abstract:Historically, rehabilitation of aged flexible pavements in the state of Florida has involved the placement of a leveling course and some form of asphalt overlay. In many cases, these improvements have also included removal of all or a portion of the existing pavement in order to preserve existing drainage facilities and height clearances. More recently, the overlay program has included the removal of cracked pavement in order to eliminate structurally unsound asphalt concrete which result in the rapid appearance of reflective cracking. This removal of pavement results in the accumulation of rather significant quantities of salvaged asphalt concrete materials. The advancements that have been made in recent years relative to improvements in equipment have made possible substantial advancements in the removal and reprocessing of these materials in order to make high-quality hot asphalt concrete mixtures. This study reports on the findings of Florida's first involvement in hot mix recycling.
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