Coal asphalt manufacturer Shen Min
Spherical asphalt, referred to as spherical asphalt, is asphalt developed into spherical shape through a special process, which belongs to high-temperature coal asphalt. Its softening point is generally above 120, as the name suggests, the appearance of spherical asphalt is a granular sphere of millet, and the uniform particle size is 0-2mm. The sieving rate is 80%, and it has the characteristics of fixed carbon, insoluble toluene, high resin content and low ash content.
Ball asphalt is a commonly used pavement material, mainly used in castables, and its role has several aspects.
1. Bonding: The main role of ball asphalt in the castable is bonding. Ball asphalt has a high viscosity and can bind stone particles to form a strong monolithic structure. Through the adhesion of ball asphalt, the strength and stability of the castables can be increased, and the durability and bearing capacity of the pavement can be improved.
2. Waterproof effect: ball asphalt has good waterproof performance. In the castable, ball bitumen can form a dense barrier that prevents moisture from penetrating underneath the road surface. This prevents groundwater infiltration, avoids softening or collapse of the pavement, and keeps the pavement smooth and stable.
3. Noise reduction: Ball asphalt also has certain sound absorption and buffering properties. When the vehicle is moving, the ball asphalt can absorb the impact and vibration between the vehicle's tires and the road surface, reducing the generation of noise. This is especially important in places where noise pollution needs to be reduced, such as urban roads, to provide a better traffic environment.
4. Anti-aging effect: The asphalt molecules in ball asphalt contain a large number of various organic substances and have good anti-aging properties. In the castable, ball asphalt can protect the stone particles from the erosion of the external environment, prolong the service life of the castable, and improve the durability of the pavement.
5. Anti-cracking effect: ball asphalt can form a flexible colloidal binder in the castable to improve the bonding strength and toughness of the pouring system. This flexible colloid can resist the effects of temperature changes and traffic loads, reducing cracks and cracks caused by temperature stress and traffic loads, and extending the life of the pavement.
6. Anti-slip effect: the asphalt molecules in the ball asphalt can form a lubricating film on the surface of the stone particles, reduce the friction between the particles, and improve the anti-slip performance of the castable. This is very important to keep the road surface smooth and driving safe.
In general, spherical asphalt plays a role in bonding, waterproofing, noise reduction, anti-aging, anti-cracking and anti-slip in the castable. These effects make the castable stronger, more durable and more stable, improve the bearing capacity and service life of the pavement, and provide a better infrastructure for transportation.