As China's car sales continue to rise, the number of scrap tires is also rising sharply. No sales of waste tires, long-term piling, it is difficult to degradation, causing great pollution to the environment. The appearance of tire reclaimed rubber powder not only alleviates the pollution of waste tires, but also improves the serviceability of the products when used in rubber products. One tire reclaimed rubber powder in the application of modified asphalt not only can improve the phenomenon of road surface cracking and skidding, but also can extend the service life of the road. Can be said that the living environment and the road to achieve a win-win situation.
First of all, let's look at what is the powder modified asphalt: Powder modified asphalt is a kind of modified asphalt, it is the waste tire powder as a modifier added to the asphalt and supplemented by other chemical agents, through physical And chemical reaction of asphalt modified eventually forming a new type of paving material with stable performance; waste tire powder in the role of additives can absorb a variety of organic substances in asphalt, such as resins, hydrocarbons, after a special process tire rubber powder Will gradually wetting, swelling, viscosity and softening point will increase, to improve the adhesive powder to improve the viscosity of asphalt, flexibility and toughness.
Common reclaimed rubber powder modified asphalt production methods are two kinds:
1, wet method: disperse the crumb rubber in the asphalt cement to form the crumb rubber modified asphalt, and then make the macroscopically uniform crumb rubber modified asphalt, and then make the rubber crumb modified asphalt and the aggregate to be hot blended Mixture. In the production of renewable rubber powder modified asphalt should be preferred to choose this method.
2, dry method: the rubber powder added to the aggregate, and then mixed with the rubber powder aggregates and asphalt hot mix made of the mixture. The cost of this method is lower than the wet method, but the production of modified asphalt products consistent poor stability.
Rubber powder added modified asphalt pavement softening point increased, viscosity increased, thermal stability, can significantly ease the summer driving the road rutting problem; rubber powder to improve asphalt pavement temperature sensitivity to reduce the traditional asphalt pavement winter Easy to crack, the problem of summer variability, better adaptability to temperature, extend the service life of asphalt pavement; added modified asphalt pavement better water resistance; can increase the flexibility of the road to improve the grip of the car tires and the road Sex, to reduce the formation of a certain decibel, improve driving safety and comfort.
Hebei Hongyun reclaimed rubber production of various sizes of tire powder products, waste tire material selection is genuine, long-term supply of quality and stability, but also in accordance with customer demand for different specifications of the powder products, Come "onlookers"!
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