Heatec Asphalt Rubber Blending Systems

Astec makes blending systems for making rubber modified asphalt mixes. These systems can be portable or stationary and come in a number of configurations. Portable units come with everything neatly packaged on a chassis. They are used for mixing either ground tire rubber or crumb rubber.

Ground Tire Rubber (GTR) is loaded into the hopper before mixing begins and must be replenished during the mixing process. Next the screw conveyor carries the GTR to the mixing chamber. Then, the GTR is blended with virgin asphalt by a high shear mixer running at a speed of 3400 rpm. As the materials are mixed, they are pumped to the portable holding tank. During the mixing process, fresh materials are continuously fed into the chamber until the required volume of material has been mixed.

The portable mixing unit includes the high temperature heating system for the process. Load Cells and Mass Liquid Flow Meters provide extremely accurate material regulation. And the controls can be either panel mounted or included in an air conditioned control room. Low emission options are available for the hot oil heater.

Reaction tanks are also available.