According to previous studies and field investigations, asphalt pavement is affected by volatilization, absorption, oxidation, and photochemical reactions of the pavement, and the asphalt ratio drops sharply under initial aging conditions, resulting in a brittle and fragile pavement. With further erosion of the asphalt, the moderately aged pavement exposes its content. Asphalt pavement enters the aging stage due to continuous tearing and weathering, in which the stones are exposed to smaller particles on the pavement.

Bitumen is a black and highly viscous liquid or semi-solid form of petroleum. It may be found in natural mineral deposits. The main use of asphalt (70%) is in road construction, as a binder or adhesive for asphalt concrete. Its other main use is in asphalt waterproofing products, including roofing moisture-proofing materials for sealing flat roofs.

In asphalt production, process temperature is a key factor in plant performance and the properties of the hot mix. To ensure the long-term quality of the pavement, the temperature must be monitored during the production process and when the hot mix is ??loaded onto the truck. To ensure that the temperature remains within specified limits when the material is conveyed to the mixer, the temperature is monitored where the material leaves the drum. The burner is controlled based on this data. This is why equipment for asphalt mixing uses pyrometers for non-contact measurement devices and temperature control systems.

The construction method of modified asphalt pavement mainly includes the following steps:

Asphalt cold patch road construction is a project involving multiple steps and key points. The following is a detailed introduction to the construction process:

Under the current situation of continuous development of various industries, emulsion bitumen plant has been further developed and applied. We know that emulsion bitumen is an emulsion that is liquid at room temperature formed by dispersing asphalt into water phase. As a mature new road material, it saves more than 50% of energy and 10%-20% of asphalt compared with traditional hot asphalt, and has less environmental pollution.