Asphalt Pavers
There are many different components that make up a modern asphalt paver. These include an engine, drive tracks, hopper, distribution augers, and a screed. The screed is used to level and shape the asphalt, and is equipped with a variety of components, including vibrators, endplates, and slope sensors.
When an asphalt paver is in use, the operator must constantly monitor the speed of the conveyor to ensure the proper application of the Asphalt. This can be done manually or by using a flow gate to control the amount of asphalt that is fed into the augur distributer. Newer pavers also have automatic feed control systems, which regulate the feed rate without the need for operator input. Once the asphalt is pushed from the back of the paver, it is spread evenly over the screed.
There are different types of cracks that occur on asphalt. Some are block cracks. They occur when the asphalt binder is too dry when the pavement is first laid, while others are transverse cracks. Both types of cracks can cause problems with the asphalt. If you have a crack in your pavement, you may need to have it repaired.
How Asphalt Pavers Work
A typical asphalt paver has a width of about eight to twelve feet, while the biggest ones can support up to 40 feet. Eight-foot-wide pavers are used on smaller projects, while larger pavers can support a variety of applications, including highways. They can be anywhere from 20,000 to 40,000 pounds.
The purpose of an asphalt paver is to shape and compile a layer of asphalt. A paver can be self-propelled or towed by a dump truck. In the latter case, the tractor will supply the moving power needed for the powered machinery. The screed will smooth out the layer of asphalt by leveling it.
Another way to control surface variations is to use a mobile reference system. These devices are positioned near the center of the paver, thereby reducing the transmission of small elevation changes. However, most smaller paving companies do not use automatic grade control systems and instead rely on manual grade setting. When manually setting the grade, it is important to consider where the base aggregate will be placed.
The paver has six fundamental forces that influence its performance. These forces affect the angle of the screed, tow point elevation, and speed. Those variables determine the thickness of the mat and the degree of smoothness. When the screed moves from the tow point to the front of the paver, it changes angle and elevation.
