On the occasion of the National Day, the motherland will also usher in its 73rd birthday. When you embark on a journey, someone is holding on to ensure your safe travel; when you enjoy the beautiful scenery, someone is holding on to protect the transportation construction of the motherland... Thank you for all your perseverance, this is the road builder who has paid silently.

Listen to the story of the builders who walked with Wirtgen all the way to build a better China, walked into Tangshan Dacheng Road and Bridge Co., Ltd., and listened to the road construction story of Chairman Tian Quanle.

Tian Quanle, who has worked hard in the road construction industry for more than 40 years, made a prediction. He believes that the low-carbon, environmentally friendly, green and efficient asphalt pavement in-situ cold recycling construction technology will spring up in the future with the development momentum of mushrooms in my country. It is rapidly popularized in the road maintenance business.

Tian Quanle is the chairman of Tangshan Dacheng Road and Bridge Co., Ltd. and a senior engineer. He started as an ordinary construction worker and has been rooted in the front line of road construction for many years. He understands road construction design, construction technology, and construction equipment. Therefore, he especially likes to buy Wirtgen equipment. Wirtgen paver, milling machine, road roller, slipform machine and other models are all available. But you have to ask what is his favorite device? The Wirtgen W 380 CR cold-in-place regeneration unit is his answer.

Wirtgen W 380 CR cold-in-place recycling plant construction site

"I am an 'enthusiast' in the field of road construction equipment, and I like good equipment. The Wirtgen W 380 CR in-situ cold recycling equipment has better technical performance than Wirtgen's previous WR 2500 S cold recycling machine and WR 250 cold recycling machine. It is comprehensive and can meet the construction requirements of more working conditions!” Mr. Tian said that the W 380 CR in-situ cold recycling equipment is a masterpiece of high-precision technology in the industry, and it is also an indispensable part of Dacheng Road and Bridge in the construction of in-situ cold recycling roads. The main force, and it also represents the changing trend of the future construction method of the industry.

Strong strength, professional and refined

As an expert and scholar-type boss, Mr. Tian has adhered to the line of professional construction enterprises for walking surface engineering since the company was founded in 2006. The company has the second-level qualification for general contracting of highway construction, the first-class, second-class, second-class, and third-class A-class construction qualifications for highway maintenance, the third-class qualification for municipal general contracting, and the professional contracting of roadbed and pavement construction. Construction labor and other qualifications.

In addition, the company also has 5 asphalt mixing plant production bases, with an annual output of more than 1 million tons of asphalt materials. Dacheng Road and Bridge is not only regarded as a benchmark by the industry for its construction quality, but also rated as "integrity enterprise" and "quality trustworthy unit" by the local government.

"Asphalt on-site cold recycling equipment construction sector is the biggest highlight of our Dacheng Road and Bridge Company's business." Mr. Tian said that in 2021, the asphalt recycling construction area of Dacheng Road and Bridge will reach 1 million square meters. This year, the asphalt recycling construction area has exceeded 900,000 square meters. It is expected to exceed 1.3 million square meters throughout the year.

Dacheng Road and Bridge has strong strength in asphalt in-situ cold recycling construction

What is the concept of 1.3 million square meters? This is equivalent to a road of 10 meters wide, 10 cm thick and 130 kilometers long in Dacheng Road and Bridge this year. Such construction volume is enough for Dacheng Road and Bridge to rank among the best in the national asphalt in-situ cold recycling construction industry.

As a "loyal fan" of Wirtgen, Mr. Tian owns more than 50 Wirtgen equipments, including more than 10 Wirtgen on-site cold recycling equipment. Dacheng Road and Bridge is still in the construction scale of on-site cold recycling. In terms of the number of on-site cold recycling equipment owned, it is in the forefront of Hebei Province and even China.

Distinctive eye, advance layout

Mr. Tian said, don't look at the asphalt in-situ cold recycling construction method is so popular all over the country now. Five or six years ago, this construction method was still in the early stage of experimentation in many places in China.

Today, Dacheng Road and Bridge’s in-situ cold recycling business continues one after another, thanks to Mr. Tian’s long-term persistence and optimism. It is precisely because Dacheng Road and Bridge has done a lot of construction promotion and technical accumulation before, that we have the joy of the current harvest.

According to reports, Mr. Tian was attracted by the construction technology of asphalt in-situ cold recycling as early as 20 years ago, that is, around 2002. With his unique vision, he believes that this construction technology will be very promising. "In 2006, I bought a Wirtgen WR 2000 regenerator. At that time, there were not many domestic users who dared to buy this."

Mr. Tian said that after owning Wirtgen equipment with advanced performance, he dared to guarantee the construction period and construction quality to the owner, and this equipment has also become a "merit" equipment for Dacheng Road and Bridge to set sail.

WR 2000 cold recycler purchased by Dacheng Road and Bridge in the early days

Subsequently, Mr. Tian purchased Wirtgen WR 2500 S cold recycler, KMA 220 mobile plant-mixed cold recycler, WR 250 wheeled cold recycler, W 380 CR and W 240 CR crawler-type in-situ cold recycler. .....

Wirtgen W 240 CR crawler in-situ cold recycler construction site

Wirtgen WR 250 wheeled cold recycler at construction site

It is worth mentioning that Mr. Tian’s favorite W 380 CR in-situ cold recycling machine can regenerate 3.8 meters wide and 30 centimeters thick asphalt pavement at one time, shortening the construction period by at least half compared with the traditional road construction and maintenance method and improving work efficiency. , reduce the impact on road traffic.

During the construction process, the foamed asphalt is processed on-site together with the old pavement materials, eliminating the problem of disposal of waste materials and highlighting the good economic and environmental benefits brought by new technologies, new processes, new equipment and new materials.

Wirtgen W 380 CR cold-in-place regeneration unit regenerates one lane at a time

"The Wirtgen W 380 CR In-Place Cold Recycler is a sophisticated 'mobile mixing plant', without this latest Wirtgen In-Place Cold Recycler we would not have been able to achieve this simultaneous spread based foam Asphalt cold recycling construction technology.”

Mr. Tian said that the construction technology of asphalt in-situ cold recycling is only after Wirtgen equipment is available, and then the construction technical specifications formulated by the Ministry of Communications in 2008. Wirtgen has indeed made great efforts to promote the development of circular road maintenance and construction in my country. contribute.

Green emission reduction, the general trend

Mr. Tian said that compared with the traditional construction method, the in-situ cooling recycling construction technology is a revolutionary subversion. It can solve the problem of reflective cracks in the semi-rigid base, reduce the project cost, prolong the service life of the asphalt pavement, and effectively use the waste pavement materials. To achieve a new construction process that meets the green emission reduction, energy saving and environmental protection effect advocated by the state.

Another unique advantage of in-situ cold recycling construction of asphalt pavement is that it can be constructed at the same time as it is opened to traffic.

"We use Wirtgen for in-situ cold recycling construction in Luanzhou. The owner's expectation is that we will complete the project in 2-3 months. As a result, we renovated all four or five roads in Luanzhou urban area in just 20 days. Now, the markings are all done." Mr. Tian said that the professional and efficient construction performance of Dacheng Road and Bridge has been highly affirmed by local government leaders and local people.

The on-site cold recycling construction of asphalt pavement only occupies one lane, which can be opened to traffic during construction

In 2017, National Highway 112 was overhauled. Dacheng Road and Bridge used asphalt on-site cold recycling construction technology to complete the 12-meter-wide and 24-kilometer-long project. Looking back on this project after many years, Mr. Tian said proudly:

"Go and see, there is not a single crack on the road, the effect is very good, and it can stand the test of time. This construction process can not only save 40% of the construction cost, but also greatly help improve the quality of the overall road surface. "

In 2019, Dacheng Road and Bridge’s repair project on the outer ring of the old road of Tangshan’s heavy-duty traffic road also adopted the construction technology of Wirtgen’s high-performance foam asphalt in-situ cold recycling equipment. You will also find that the restored road has stood the test of time without any cross seams, even under heavy traffic loads.

"The special semi-flexible structural mode of the foamed-in-place asphalt cold recycled mixture determines the low temperature sensitivity of the material, better high temperature stability compared with traditional flexible base materials, and also has good splitting strength. Better fatigue resistance." Mr. Tian said that as more and more people understand the unique advantages of in-situ foamed asphalt cold recycling technology, this construction process will inevitably be more widely used in the future.

W 380 CR Asphalt In-Situ Cold Recycling Construction on Luanzhou Road

In Luanzhou City, Hebei Province in 2022, 10 roads will be repaired at Dacheng Road and Bridge, 8 of which are constructed using in-situ cold recycling.

"After we repaired a road in Luanzhou City, the government leaders saw that the construction effect was so good, and the opening to traffic was so fast that it did not affect the daily traffic of the people, so several other roads that were going to be reconstructed by traditional construction methods were finally completed. It is constructed with foamed asphalt in-situ cold recycling equipment." said Mr. Tian.

Join hands with Wirtgen to build a better future

Since entering the Chinese market in 1982, Wirtgen has been deeply involved in China for 40 years, and Mr. Tian has also devoted himself to the road construction industry for 40 years. It can be said that Mr. Tian has devoted the most precious time of his life to this industry.

"I have deep feelings for road construction and Wirtgen equipment. I am a professional road repairer." Mr. Tian said that his style of doing things is to pursue quality and live up to the expectations of the owners and partners. trust. As the saying goes, if a worker wants to do a good job, he must first sharpen his tools. Therefore, when purchasing equipment, Mr. Tian always prefers Wirtgen equipment with more advanced technology and more stable performance.

"Our company's recycling machines and more than ten milling machines are all of the Wirtgen brand, and the twin-drum road rollers are also of the Hummer brand of Wirtgen, as well as more than 10 Vögele pavers and cement slipform booths. Paving machines are also Wirtgen brand." Mr. Tian said that Wirtgen's pavement brand products launched in China, he has everything.

Wirtgen slipform paver purchased by Dacheng Road and Bridge

"Wirtgen's equipment not only brings profits to my company, but more importantly, it creates a valuable reputation." Mr. Tian said that if you want to work on porcelain, you must have diamonds. Wirtgen equipment is not only of reliable quality, but also of very considerate customer service; not only after-sales service engineers are always on call, but also a very comprehensive and professional product application service team.

From the application guidance and consultation of the device to the use of the device, it can make users feel at ease, which is also very commendable.

Construction site of the Wirtgen milling machine purchased by Dacheng Road and Bridge

In Mr. Tian's mind, the cooperation between him and Wirtgen has gone far beyond the level of business cooperation. He regards Wirtgen's staff as friends, even close friends and good buddies!

"Wirtgen is my noble person and gave me strong support in the early days of the business. Along the way, the two sides supported and trusted each other and achieved a precious friendship. Looking forward to the future, I hope Wirtgen will continue to bring more advanced technology to the majority of users. Road construction technology and equipment will make new contributions to China's road construction." Mr. Tian believes that with the in-situ cold recycling construction technology of asphalt blooming all over the country in the future, the friendship between Dacheng Road and Bridge and Wirtgen will write a new chapter. brilliant chapter.Editor/Ma Xue