Asphalt Paver - Tracked
Rubber tracked asphalt pavers are available in a wide range of sizes, from those that pave four feet wide for building walking paths, to those that can attain paving widths of 60 feet or more when placing interstate highways. These paving machines include two basic units: the tractor, propelled by crawler-type tracks, and a floating screed at the rear of the machine.
The tractor portion incorporates a hopper in the front that receives material from a dump truck or from a material-transfer vehicle. Material from the hopper flows to the front of the screed by several means: gravity; slat-type conveyors; or augers. The screed is basically a heavy metal plate that shapes the pliant asphalt.