Lesson 2/Learning Event 2
Learning Event 2
Some of the many types of equipment used in pavement construction are listed below.
Hauling equipment includes such items as the 5-ton and 20-ton dump trucks. An important thing
to remember is that the truck must be kept clean.
Support equipment includes such items as clamshells, belt conveyors, scoop loaders and dozers.
Remember to keep these items in good working condition.
Asphalt Distributors (Bituminous Distributors)
This equipment is used primarily to spray bituminous material on a prepared surface. A
tachometer registers the pump discharge in gallons per minute and a bitumeter shows the forward
speed of the truck in feet per minute.
Planning and managing the placement of bituminous surfaces present such varied conditions that
it is impossible to establish hard and fast rules for all construction procedures. Also, there may
be several equally good methods of arriving at the same desired result, and it would be unwise to
restrict action to one specific line.
As a minimum you should check the following items of equipment to be used in placing
Dump Trucks. Inspect the truck's dumping mechanisms and capability for carrying the
materials, and insure that the dump bed is clean.
Bituminous Distributor. Inspect all valves, pumps, burners, spray bars (nozzles), and
Bituminous Paver. Inspect the rollers for pushing truck tires, hopper, treadway, spreader
screws, tamper, screed, and depth adjustment controls.
Rollers. Check the pneumatic tire pressure, scrapers, wheel moistening mechanism, and
Inspect each item of equipment using the TM for that equipment.