Which manufacturer is the single-stage gas generator?

The strength of asphalt mixture is mainly reflected in two aspects. One is the bonding force of the cement formed by asphalt and mineral powder, and the other is the internal friction and locking force between aggregate particles. The huge surface area of the fine particles of mineral powder (mostly less than one meter) causes the asphalt material to form a thin film, thereby improving the bonding strength and temperature stability of the asphalt material, while the locking force is mainly generated between coarse aggregate particles. When selecting the gradation of asphalt concrete minerals, both should be taken into consideration, so that after adding an appropriate amount of asphalt, the mixture can form a dense, stable, suitable roughness, and durable road surface. There are many ways to mix mineral materials, which can be calculated by formulas or the grading range can be specified based on experience. China currently uses the grading range of the experience curve. The appropriate amount of asphalt in the asphalt mixture should be determined based on laboratory test results and practical conditions on the construction site. Generally, a reference asphalt dosage range is listed in the relevant specifications as a guide for trial mixing. When the mineral material variety, gradation range, asphalt consistency and type, mixing facilities, regional climate and traffic characteristics are relatively fixed, empirical formulas can also be used to estimate.