Separate 5.4 gal (20,4 l) emulsion tank and pump provide additional tire spray-down.
The Volvo CR24 and CR30 effectively combine two modern compaction methods to achieve maximum density and smoothness, while compacting Hot Mix Asphalt (HMA) and other semi-cohesive materials. These combination rollers utilize a high-frequency vibratory system on the front drum for density requirements and four pneumatic tires in the rear to ensure the impermeability and smoothness of the material. The four pneumatic tires manipulate the compacted material to improve surface texture and reduce water intrusion. The use of both a vibratory drum and pneumatic tires provides a dense, smooth, quality mat.