Home » Waste tires become “sunscreen lotion” on asphalt roads, and the anti-ultraviolet effect is greatly increased | TechNews Technology News

Waste tires become “sunscreen lotion” on asphalt roads, and the anti-ultraviolet effect is greatly increased | TechNews Technology News

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Waste tires become “sunscreen lotion” on asphalt roads, and the anti-ultraviolet effect is greatly increased | TechNews Technology News

Asphalt roads have strong weather resistance. Under normal use, they will not melt in summer and will not crack in winter, but everything has a lifespan. If you want to extend the use time of asphalt roads, you may need to add some “sunscreen” function. Recently, Australia Scientists have successfully doubled the life of roads by using waste tires.

Waste tires can be recycled for many purposes. After crushing, materials such as film, rubber powder and steel wire can be sorted out. These recycled raw materials can be converted into sound insulation materials, yoga mats, etc., and can also be used for asphalt roads. A research team from RMIT University in Australia found that adding ground waste tire material to traditional asphalt can prevent the asphalt from being decomposed by ultraviolet light.

In the past, the research team continued to analyze the potential application value of waste plastics. In the past, experiments pointed out that it can make concrete stronger and more heat-resistant. Now there are new discoveries.

To test the idea, the team added rubber crumbs to the top layer of asphalt at 7.5%, 15% and 22.5%, and then exposed it to high-intensity UV light for a month. condition, and then test the chemical and mechanical properties of the bitumen.

The study pointed out that the higher the ratio of rubber, the higher the resistance to ultraviolet rays. The asphalt with the most rubber added has more than twice the ultraviolet resistance of ordinary asphalt, but it should be noted that adding too much may damage the road to mechanical damage. resistance.

Filippo Giustozz, the first author of the paper, said that the team found that adding 18% to 22% of rubber can improve the anti-fatigue resistance of asphalt roads to traffic loads on the one hand, and can also effectively resist ultraviolet rays. It can be said that it is a sunscreen for asphalt roads, which can prolong Twice the life of the road. Another advantage of this technology is that waste tires have an economic value of “recycling”. Improperly disposed or discarded waste tires are harmful to the environment, and no one will reject effective recycling methods.

(Source of the first image: pixabay)


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