Paving Equipment

This gallery of equipment images is designed to help you identify common types of equipment for placing pavement and the base material that supports it.

15 photo(s) Updated on: 03/14/2013
  • Roto-Mill: c. 1992 Cat PM565. Also called a cold plane, profiler or milling machine, the Roto-Mill pulverizes and removes old asphalt pavement for recycling or disposal during resurfacing operations.
  • Spreader box: 1960s Ulrich 18A. The spreader box is pushed by a dozer and has no bottom. A dump truck fills it with base material, which falls to the roadbed and is spread by the back of the box.
  • Base paver: 1950s Blaw-Knox. In the 1950s and 60s, spreader boxes could be permanently mounted on a crawler chassis, but the idea of using them as detachable attachments on crawler tractors prevailed.
  • Trimmer: c. 1976 CMI TR225. Before any pavement can be laid, the subgrade must be precisely graded. Using roadside stringlines for reference, the trimmer removes excess material to the shoulder.
  • Road Widener: c. 1968 Blaw-Knox RW195. Also called a shoulder spreader, this machine receives material from a dump truck and spreads it to the road’s shoulder.
  • Stabilizer: Many roadbeds are stabilized with lime or cement before paving can begin. Resembling a giant roto-tiller, a stabilizer pulverizes the top few inches and mixes it with water and additives.
  • Dry Batch Paver: From the 1910s until 1960s, concrete was mixed and placed on the roadbed by a paver. Dry materials were delivered to the skip in back, and concrete was placed by the traveling bucket.
  • Form-riding Concrete Paving: Machines that rode on the forms that shaped the slab’s sides leveled, tamped and finished the concrete to final profile. After the concrete cured, the forms were removed.
  • Slipform Paver: c. 2007 Terex SF3502. This machine makes steel forms to shape the slab obsolete. The slab is shaped by a form that moves with the paver, and concrete is mixed offsite and trucked in.
  • Slipform Paver: c. 1997 Gomaco Commander III. Some slipform pavers can be set up to place and shape narrow lanes, sidewalks, curbs and specialized structures such as median barriers.
  • Asphalt Distributor: c. 1970 Etnyre BTHL on Ford C700 truck. This vehicle sprays hot liquid asphalt on the roadbed prior to asphalt paving or chip surfacing.
  • Chip Spreader: 1965 Flaherty K. A chip spreader places a thin sheet of chipped gravel on the asphalt sprayed by the distributor. This type of surfacing is used on many lightly traveled roads.
  • Asphalt paver: Barber-Greene SA41. Traveling on crawlers or tires, this machine places asphalt concrete pavement. A conveyor carries the mix from the front hopper to the rear screed that spreads it.
  • Windrow Elevator: c. 1988 Barber-Greene BG610H. Asphalt concrete may be delivered to the paver by trailers that dump it in a windrow. This machine scoops up the mix and places it in the paver.
  • Asphalt Transfer Machine: Roadtec LTV1000. Asphalt concrete may start solidifying during delivery. This machine receives it from the truck, re-mixes it and places it in the paver’s receiving hopper.

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