Best Practices for RAP and RAS Management NATIONAL ASPHALT PAVEMENT ASSOCIATION • QIP 129 Notice This document is disseminated under the sponsorship of the U.S. Department of Transporta -
RAP bins and RAP system on StarBatch asphalt plant, showing conveyor/elevator feeding reclaimed material directly into the mixer. Systems are available to allow introduction of the pre-processed cold RAP material directly into the asphalt plant hot elevator at a ratio of approximately 10%, or a higher percentage of approximately 25% can be achieved with a …
The RAPwrangler™ was designed to be powerful, efficient and easy to maintain. It can be used to render football sized chunks down to suitable gradations. The RAPwrangler™ eliminates off-site pre-crushing of asphalt materials to be recycled.
Recycled Asphalt Driveway Pros. Many homeowners have fallen in love with their recycled asphalt driveways. Here are some of the many benefits that the material has to offer: Affordable – One major advantage of using RAP for driveway construction is that it's very low cost. Recycled asphalt requires far fewer raw resources than asphalt.
Recycling Work Horse. Take advantage of the savings realized through the use of recycled asphalt pavement (RAP) with Astec RAP systems. The systems are offered in a range of configurations, with a variety of conveyors, screens, grizzlies and crushers.
Schutte Hammermill offers one set of equipment for processing both RAP and RAS . Our heavy duty RC Series Hammer Mill with carbide hammers is highly effective for processing both asphalt road millings and asphalt shingles.
However, the use of RAP in this application acts as an additional asphalt cement binder. As a result, the RAP reduces demand for asphalt cement mixes containing RAP. Hot Mix Asphalt. Recycled hot mix produced at a central RAP processing facility contains crushers, screening units, conveyors, and stackers.
RAP, however, is not hard rock, and the unique characteristics of RAP crushing can actually cause cone crushers to negatively impact product output. As cone crushers crush and re-crush the RAP to break it apart, the asphalt can be literally stripped from the RAP, creating white rock, which now requires the extra step and cost of recoating.
The residual liquid asphalt within RAP material – usually 3-5 percent – makes the entire process more economical, even after factoring in the costs of milling, hauling and crushing.
Honey Badger RAP Crusher. Recycle the road with the fiercely reliable Honey Badger RAP Crusher. From replaceable abrasion-resistant steel wear liners to a 1/2″ steel pulverizing hopper, this machine is ready for wear and tear.
Reliable Asphalt can also assist you with installation and start up of your equipment. Our Engineering department will assist with any design changes or plans you need for your new equipment. When it comes to providing a total package of services for your new equipment needs, Reliable Asphalt is your partner for success. Contact us […]
The mechanical rap asphalt mainly depends on the original type of asphalt pavement type, the degree of processing, and the method utilized to recover the material. A compacted unit weight of rap asphalt decreases with the increasing unit weight. The maximum dry density value recorded ranges from 1600 to 2000 kilogram per cubic meter.
Report on the Use of High RAP Asphalt Cement Concrete … A high RAP Asphalt concrete SM-12.5D mix and IM-19.0D mix … The unprocessed RAP is loaded onto the crusher, where a blow bar type crusher crushes or breaks
Black Gold RAP Crusher - General Information: Kenco Engineering's Black Gold RAP Crusher is a rugged durable hammer mill, designed specifically to break up and size recycled asphalt before it is fed into an asphalt drum mixer or pugmill. The Black Gold features 28 hammers and a 5-piece grate screen, impregnated with exclusive Kenco crushed tungsten carbide for …
the RAP contains liquid asphalt. If we could take a pile of RAP and physically extract the liquid asphalt and then screen the aggregate into three piles of clean rock, a 30,000 ton pile of RAP with 6% liquid asphalt would produce approximately 28,200 tons of clean aggregate plus 420,000 gallons of liquid asphalt, enough
Portable Crushing Services recycles waste asphalt from streets and roadways into Reclaimed Asphalt Pavement (RAP) that is primarily used in hot mix asphalt. RAP can be reused to rebuild existing roads or build new highways at a lower cost.
Dec 28, 2000· State of the Practice for Use of RAP in Hot-mix Asphalt December 28, 2000 Since the mid- 1970s, tens of millions of tons of RAP have been used to produce recycled HMA that has the same performance characteristics as HMA made with all materials.