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Sealcoating, or pavement sealing, is the process of applying a protective coating to asphalt-based pavements to provide a layer of protection from the elements: water, oils, and U.V. damage. The effects of asphalt sealers have been debated.
Chipseal (also chip seal or chip and seal or spray seal) is a pavement surface treatment that combines one or more layers of asphalt with one or more layers of fine aggregate. In the United States, chipseals are typically used on rural roads carrying lower traffic volumes, and the process is often referred to as asphaltic surface treatment .
Sprayers range in size from man-portable units (typically backpacks with spray guns) to trailed sprayers that are connected to a tractor, to self-propelled units similar to tractors with boom mounts of 4–30 feet (1.2–9.1 m) up to 60–151 feet (18–46 m) in length depending on engineering design for tractor and land size.
The asphalt is added from a dump truck or a material transfer unit into the paver's hopper. The conveyor then carries the asphalt from the hopper to the auger. The auger places a stockpile of material in front of the screed. The screed takes the stockpile of material and spreads it over the width of the road and provides initial compaction. [4]
Ag-Gator 404SP [7] The first self-propelled Ag-Chem sprayer was developed in 1967 and was called the Ag-Gator 404SP.This front wheel driven model featured a gasoline-powered, 61 horsepower Wisconsin brand engine, a stainless-steel 440 gallon product tank, and a 40' boom width.
Caterpillar soil compactor equipped with padfoot drum, being used to compact the ground before placing concrete Antique "Kemna" steamroller. A road roller (sometimes called a roller-compactor, or just roller [1]) is a compactor-type engineering vehicle used to compact soil, gravel, concrete, or asphalt in the construction of roads and foundations. [1]