During the long-term use of asphalt pavement, the physical or chemical changes of asphalt pavement materials will be caused by the repeated rolling of various heavy-duty vehicles and the multiple effects of environmental factors. After long-term use, cracks, subsidence, peeling, pitting and other damages will occur. This requires the use of asphalt pavement maintenance vehicles. What is the operation process of asphalt pavement maintenance vehicles?

Asphalt pavement maintenance vehicle is a machine for the construction of black pavement. It is the main equipment for the construction of highways, urban roads, major airports and ports. When asphalt penetration method and asphalt layer pavement surface treatment method are adopted to build asphalt pavement or maintain asphalt, the transportation and distribution of liquid asphalt (including hot asphalt and emulsified asphalt) can be constructed by asphalt pavement maintenance vehicle. In addition, it can also provide asphalt binder to local loose soil and build asphalt stabilized soil pavement or pavement base.

The main structure of asphalt pavement maintenance vehicle is composed of drying drum, hopper elevator, forced mixer, asphalt metering barrel, small cyclone furnace, unloading mechanism, ventilation and dust removal equipment, electric control part, asphalt box, coal pulverizer, generator set, automobile chassis, underframe, etc.

Workflow of asphalt pavement maintenance vehicle:

1. Fried oil sand workflow. The sand is lifted by the elevator and poured into the rolling drying drum for heating and drying. The stone powder carried in the sand is blown out by the blower. After the sand is dried to the specified temperature, it is fed into the forced mixer and fully mixed with the asphalt, and then the oil sand can be produced.

2. Asphalt spraying workflow. After the asphalt is heated to the specified temperature, it is pumped out by the asphalt pump, and the asphalt is sprayed on the pavement to be repaired through a hand-held spray gun.

The asphalt pavement maintenance vehicle has novel and reasonable structure, flexible and fast movement and simple operation. It can move flexibly due to the disease location of the highway, which can greatly improve the quality of highway maintenance, reduce the maintenance cost, reduce the labor intensity of workers, and repair the damaged pavement quickly and efficiently. It has good social and economic benefits. It is an ideal asphalt pavement maintenance mechanical equipment.