·Beijing waste tire asphalt standard officially released

Recently, the technical requirements for the waste tire rubber asphalt road prepared by the Beijing Municipal Transportation Commission have been successfully completed and officially released. It will be implemented on July 1, 2013. The standard is applicable to the structural layer and pavement functional layer of new and rebuilt road works; the technical requirements for waste tire rubber asphalt, rubber asphalt mixture and hot sprinkler rubber asphalt waterproof bonding layer for road engineering are specified.

China has carried out research in this area for more than 20 years, especially in the past 5 to 6 years. Under the background of the rapid development of national economic construction, the research on the application technology of waste tire rubber powder in asphalt pavement has made a breakthrough. . Especially in recent years, waste tire rubber asphalt has been successfully applied in major projects such as Chang'an Street overhaul project, 110 national road reconstruction project, and Beijing Olympic urban road construction project. According to preliminary estimates, the annual application of waste tire rubber asphalt mixture in Beijing exceeds 100,000 tons. Each ton of waste tire rubber asphalt is 200-600 yuan lower than SBS modified asphalt, which can save more than 20 million construction costs per year; it can extend the maintenance and repair cycle for more than 3 years; it can reduce the tire or road noise by more than 3dB(A).

The standard release implementation is important for regulating the preparation of Beijing waste tire rubber asphalt and its mixture, ensuring the quality of waste tire rubber asphalt pavement, and promoting the application of waste tire rubber asphalt in Beijing road construction, which is beneficial to waste tires. Environmentally friendly reuse.

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