Asphalt Drum Mixers Introduces Recycling Systems

Asphalt Drum Mixers Inc. (ADM), Huntertown, Ind., has introduced four models of portable and stationary recycle systems that the company says enhance the cost-efficiency of asphalt plants. Recycle systems allow plants to use milled material in hot mix asphalt (HMA).

The company says that since recycled asphalt pavement (RAP) is less expensive than virgin aggregate, the result is a less expensive finished product that maintains the high quality of a pure virgin aggregate mix.

ADM’s recycle bins feature a 15-ton capacity and are continuously welded at the seams. The bins contain angle irons and midsection stiffeners for reinforcement, and their steeply sloped sidewalls prevent material from plugging or bridging. A tapered discharge opening leads to the direct-drive belt feeder with a 5-horsepower motor, multi-ply belt, self-cleaning tail pulley and adjustable skirt boards.

To transfer RAP from the bin, the recycle system includes a heavy-duty weigh conveyor that features a channel frame and wind shroud protection designed to provide accurate weighing.

The conveyor is 2-feet wide and, depending on the model, between 45- and 65-feet long. It introduces RAP to the dried aggregate mix after the heating process. Based on the conditions and type of plant, up to 50 percent of the HMA can contain recycled pavement, the company notes.

Portable units feature a heavy-duty I-beam frame on a gooseneck trailer with a fifth-wheel kingpin hitch, single axle and air brakes. The trailer includes hinged support legs and a hydraulically controlled incline conveyor.

An optional lump breaker that reduces large pieces of RAP into a usable size is available for ADM’s recycling systems.

More information about the recycle systems is available from ADM’s website at www.admasphaltplants.com.