The road construction site in Wuyi County has attracted so many people

On the morning of October 8, the construction site of the maintenance project of Longyuan Road in Wuyi County attracted many people to watch and praised them. Why? This project uses a new process of on-site geothermal regeneration. It is reported that this is the first time that Wuyi County has adopted the new technology of road surface heat regeneration in road maintenance.

What is the new technology for road surface heat regeneration? Zhang Yonghong, director of the Wuyi County Highway Bureau, introduced that after the softening and turning of the original worn asphalt pavement, the regenerator, warming agent, new asphalt and new mixture were added according to the test ratio. Resurfacing on the spot to form a resurfaced road surface. This road recycling technology is listed as a national “863” project, a national key new product, and a national torch plan.

Construction Site

The editor saw at the scene that three heating cars, one heating and turning car, one heating remixing car and one paver, and two road rollers were lined up in a row, and the length of the team was about 100 meters. As the “magic train” slowly passed, the worn-out asphalt pavement “disappeared” disappeared, and the team showed a dark and flat new road surface. This magical unit was called “in-situ heat regeneration and resurfacing unit”. .

The maintenance project of Longyuan Road in Wuyi County was undertaken by Jiaozuo City Pilot Construction Engineering Co., Ltd. “Longyuan Road is located in the county town of Wuyi County, and the traffic volume is large. If closed construction is bound to affect the production and life of the surrounding people.” Zhang Yonghong said, “Using local heat regeneration technology, the process is simple, the process is compact, and the construction efficiency is better than milling. The construction method of planing paving, flexible transition and fast construction speed is very suitable for the maintenance needs of Longyuan Road."

Senyuan on-site heat regeneration re-laying unit

Zhao Yanhong, deputy general manager of Anshan Senyuan Co., Ltd., who is in charge of technical guidance at the site, said that the pavement was paved once, and the average forward speed was about 3 meters per minute. After the road was compacted, it only took one hour to cool down. Open to traffic, greatly reducing road traffic pressure.

Taking the road to heat the new process to repair the road, another remarkable feature is environmental protection. Zhao Yanhong calculated the account for the reporter. Compared with the traditional techniques adopted in the past, the old materials that have been milled out must be taken away and discarded, which will cause pollution such as transportation and stacking. The process can reproduce 100% of the original pavement materials. Just add about 10% new asphalt material. During the whole construction process, no solid waste waste is generated. The original worn asphalt can be fully utilized, which does not generate waste, but also saves the cost of stone and asphalt, and truly realizes recycling.

After the road is compacted, it only takes one hour to cool down and it can be resumed.

It is reported that a group of in-situ heat regeneration resurfacing units worth more than 30 million yuan, using the unit to maintain the road surface, if the scale operation is not formed, the cost will be slightly higher than the traditional process. Then, why is City Pilot Construction Engineering Co., Ltd. still introducing such a process? Zhang Yonghong said that because the process has five advantages of “fast, low carbon, environmental protection, recycling and economy”, it is in line with the general trend of green transportation development in the future, and can protect our blue sky and green water to a large extent, leaving a good ecology for future generations. surroundings. (This article is from Senyuan)