[Commentary] Let the concrete "bounce", did you hear it right?

In the 5G application demonstration base in Xuchang, Henan, Detong Vibration Mixing Technology Co., Ltd. pioneered the complete set of vibration mixing concrete technology, which has replaced the static mixing technology that has been used by domestic and foreign concrete equipment manufacturers for more than 100 years, and solved the microscopic existence of concrete. Poor uniformity, low structural durability, low mixing efficiency and waste of raw materials, etc.

  [Explanation] Recently, the reporter saw at the base that the staff used the 5G+ industrial Internet platform for the mixing industry to monitor the operation of the vibration concrete mixing equipment distributed at domestic and foreign roads, high-speed railways, airports, water conservancy and other construction sites, and provide Serve.

  [Concurrent] Staff Shi Wenhai

  Through 5G base station signal transmission, we can conduct remote real-time monitoring and diagnosis of the current, temperature and vibration of the (vibration) stirring host through the "Belt and Road", such as the project in Laos, so that our (local) experts can technicians to serve.

  [Explanation] What is vibration mixing concrete technology?

How is it different from traditional mixers when mixing cement concrete?

  Yao Yunshi, a specially-appointed expert of the company and a professor at the School of Engineering Machinery of Chang'an University, gave an example.

  [Concurrent] Yao Yunshi, Distinguished Expert of Detong Mixing and Professor of the School of Engineering Machinery, Chang'an University

  Stirring the coffee when drinking instant coffee always tends to form lumps.

Therefore, in the traditional mixer, even if the mixing time is prolonged, the cement still has the phenomenon of uneven agglomeration microscopically, and a part of the cement cannot be hydrated, which is wasteful.

In addition, the interface between cement and stone cannot be well combined.

For example, concrete structures such as our buildings and bridges are not durable enough.

  [Explanation] In order to crack this phenomenon, since 1931, the Soviet Union and the United States have continuously explored new stirring technologies, but have been unable to break through.

In 1989, Feng Zhongxu, chief scientist of Detong and a doctoral supervisor at Chang'an University, was inspired to add vibration to the stirring.

  [Concurrent] Yao Yunshi, Distinguished Expert of Detong Mixing and Professor of the School of Engineering Machinery, Chang'an University

  In order to disperse the cement mass uniformly on the microscopic scale, a motion suitable for the microscopic diffusion of the cement mass must be applied.

For example, during ordinary stirring, it is equivalent to all of us walking at the same pace, and the connection between each person is relatively weak, and when we vibrate and stir, it is equivalent to everyone dancing, so the influence on each other is more sufficient. .

At the same time as the ordinary twin-shaft forced stirring, we make it rotate and vibrate at the same time at the same time, so that the cement particles in groups of three or two can be fully dispersed and evenly hydrated from the microscopic level, and the interface between it and the aggregate can be hydrated. very tightly combined.

To achieve the same cement (amount), I can have higher strength, or, conversely, with the same strength, I can use less cement.

  [Explanation] Through independent research and development and in-depth cooperation with well-known domestic and foreign scientific research institutes, universities, and enterprises in the industry, the company has entered the era of industrialization and began to apply it on a large scale.

After realizing the industrial application of vibration mixing technology, they also pioneered key technologies such as displacement excitation and directional transmission of vibration energy, filling the technology and equipment gaps in the global concrete mixing industry.

He has obtained 16 invention patents, edited 1 national standard and 1 industry standard.

  [Same period] Zhang Liangqi, chairman of the company

  Concrete vibration mixing technology, our first generation saves more than 5% of cement, and the second generation saves more than 10%. In this workshop, the second generation mixer has been put into production and introduced to the market.

Last year, our country consumed 2.6 billion tons of cement. If saving 10% is 260 million tons of cement, then the concept of 260 million tons of cement means that one less Huashan is dug every year, which is a conical mountain of 25 square kilometers and 1.7 kilometers high.

  [Explanation] At present, the equipment produced by the company has been applied in more than 500 projects in 30 provinces and cities, such as Jingde Expressway in Xiong'an New Area and Chengdu Tianfu Airport, and sold to 7 countries along the "Belt and Road", including Senegal and Laos. nation.

  Reporter Li Chaoqing reports from Xuchang, Henan

Responsible editor: [Lu Yan]