Asphalt recycling slogan

20021year is the anniversary of the founding of the Party 100, the first year of the 14th Five-Year Plan, and a crucial year for accelerating the construction of a transportation power. Looking back, under the guidance of the Party, China's transportation infrastructure has developed from a thousand-mile trip to a trip to Wan Li. Earth-shaking changes have also brought serious "black pollution" to waste tires. However, a group of people have spent more than ten years studying one thing: rubber asphalt, which helps to build a transportation power in order to implement the dual-carbon goals of "peak carbon dioxide emission" and "carbon neutrality" in China's ecological civilization construction layout strategy. They are the research team of new materials technology for rubber asphalt pavement of Guangxi Jiaoke Group New Materials Company.

Rubber asphalt is a solid-liquid two-phase mixture of rubber powder particles and matrix asphalt at high temperature. Because it can not only solve the problems of environmental pollution and efficient recycling caused by a large number of waste tires, but also has strong aging resistance, high temperature resistance and cracking resistance, it has become the second largest modified asphalt, which has been widely recognized and widely used in this area.

In 2008, the technical team began to study the application of rubber asphalt pavement materials. Prior to this, the traditional composite pavement with cement concrete and rubber asphalt often appeared diseases such as asphalt layer falling off and moving. The primary problem before them is to overcome the "green high-performance composite pavement technology". Although foreign teams have been studying this technology as early as 100 years ago, there are very few successful cases that can be used for reference in China.

As one of the largest karst landform areas and post-development areas in China, Guangxi's traffic research is facing greater challenges, and it is bound to be risky to try new things. But young people who are passionate about scientific research always have an indomitable spirit. "As long as the mind does not decline, the method is always more difficult than it is." This is a topic that technical team members often talk about. To this end, they buried themselves in the laboratory day and night. Facing the cold test equipment and repeating boring experiments every day, they will never be discouraged by repeated failures, but keep thinking, looking for reasons from countless failure data and seeking breakthroughs. After unremitting efforts, the team finally independently developed the "green high-performance composite pavement technology" and put it into use in several urban main roads. The application test results show that the anti-skid and anti-rutting ability of asphalt overlay is improved by more than 1 10%, the high-temperature deformation resistance is improved by nearly 1 times, and the anti-aging ability is also enhanced.

Due to the particularity of the research work on new materials of rubber asphalt pavement, the members of Guangxi Jiaoke rubber asphalt technology research team need to stay at the construction project site. In the eyes of ordinary people, the open-air working environment with high temperature, sunshine and wind and rain is not suitable for scientific research that needs high concentration. However, they seem to enjoy it. They frequently go back and forth to the processing sites, mixing fields and paving points of various construction sites day and night, showing the tenacity of researchers in their busy work. Because everyone thinks that the construction front line is the closest place to scientific research results, they work harder.

Compared with the challenge of the weather, the greater "bitterness" of the research team is the embarrassment of the family. Long-term living and busy work, they spend much less time with their families than with rubber asphalt. In order to finish the project tasks on time, many team members left their pregnant wives, failed to fulfill their husband's responsibilities, and didn't hurry home until the child was born. From the team, we can see the dedication of giving up family and achieving everyone as a scientific researcher.

Over the years, the team has given full play to the advantages of Industry-University-Research's integration and focused on technology research and development and engineering application, which has made the technology of rubber asphalt pavement in Guangxi more and more mature, reliable, economical and reasonable, and guaranteed in construction. The research project has realized the harmless recycling of waste tires 100%, solved the key problems such as storage stability of rubber asphalt, and completed the industrial production of rubber asphalt, with more than 0 kinds of derivative products 10, and the technical level has reached the domestic leading level. At present, the complete set of rubber asphalt technology of Guangxi Jiaoke Group has been popularized and applied in the whole region for more than 654.38 million kilometers, with the total production and supply of rubber asphalt reaching 70,000 tons and the total industrial output value reaching 300 million yuan. The team and related technical achievements have successively won provincial and ministerial-level scientific and technological awards and honors such as the local standard award for important technologies of the autonomous region government, the first Guangxi Innovation Award, the first prize for scientific and technological progress of Guangxi, the first prize for scientific and technological progress of China Highway Construction Industry Association, the third prize for science and technology of China Highway Society, the national post innovation achievement award of China Seafarers' Construction Alliance, and the major scientific and technological innovation achievements of the Ministry of Transport in 2020.

The road of scientific research, waiting for flowers to bloom. For the future, the research team of Guangxi Jiaoke Rubber Asphalt Technology is full of expectations: I hope that I can keep the enthusiasm of researchers for innovation and unremitting exploration, and contribute to promoting the green scientific and technological revolution and helping to build a strong transportation country.