Using warm-mix asphalt (WMA) technologies in recycled asphalt pavement (RAP) mixes is a win-win scenario in every respect. The cost benefits are evident—reduced material costs and less fuel usage. Plus, the enhanced workability of warm-mix can facilitate using increased RAP contents, which translates into even greater cost savings. With sustainable advantages such as conserving natural resources and reducing the emission of greenhouse gases, the WMA/RAP combination also scores high in terms of environmental stewardship.
Beyond economic and environmental benefits, WMA and RAP together create a synergistic mixture. “They go together, like peanut butter and jelly or macaroni and cheese,” says Dr. Randy West, NCAT director. “We should be using them together whenever we can.”
(source: NCAT website, click here for entire article)
