Abstract
Significant research has been performed in the area of Recycled Asphalt Pavement (RAP) and Warm Mix Asphalt (WMA). This research has often looked at the influence of aging and moisture on cracking and rutting, but there is limited research available that looks at the combination of aging and moisture on both cracking and rutting. This research investigated the effects of RAP and chemical modified WMA on laboratory performance tests including: cracking, rutting, compactability, moisture conditioning, and aging. Based on the test results, WMA with RAP performed similar to Hot Mix Asphalt (HMA) with RAP in cracking and rutting resistance even though the WMA had lower mixing and compacting temperatures and a reduced binder content. In addition, WMA with RAP had similar compaction characteristics as HMA with RAP.
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