Asphalt spreader is a road machinery used to transport and spread all kinds of liquid asphalt. After the asphalt pavement is spread on the gravel layer, compacted, compacted, and evenly leveled, the asphalt is sprayed with an asphalt spreader on the clean and dry base layer; after the caulking material is evenly covered while it is hot, Then the asphalt spreader sprays the asphalt again until the overlay asphalt forms a pavement. The working object of the asphalt spreader is liquid asphalt.

Asphalt paver is a machine that evenly spreads the asphalt mixture on the road base and performs preliminary vibrating and leveling. There are two types: crawler type and tire type. It consists of two parts: traction, paving, compaction and ironing. The working object of the asphalt paver is soft solid asphalt.

The modified emulsified asphalt mixture in the emulsified asphalt tank is transported to the asphalt spraying rod through the emulsified asphalt circulation system according to the specified flow and pressure. Through the atomization and spraying of the nozzle, a uniform emulsified asphalt seal is formed on the pavement to be paved. At the same time, the hopper accepts the paving material from the dump truck and transports it to the screed through the left and right screw conveyors. The distribution trough between the rear plate of the fuselage and the auger distributes the paving material evenly along the paving width , And then the screed irons and compacts the paving materials according to the specified thickness to realize the emulsified asphalt seal and the asphalt mixture Simultaneous construction of mixed paving.