On May 20, 2022, the leaders and experts from China Construction Five Bureau, Henan Geology and Mining Bureau, China Nuclear Five Institute and Henan Water Resources and Environment Vocational College visited Sano Repair Technology Co.

You Jieyong, Chief Engineer of CCB-5, Xie Danfeng, Senior Engineer of Henan Geology and Mining Bureau, Liu Shuqing, Senior Engineer of CNNC-5, Professor Wang Ru, Professor of Henan Water Resources and Environment Vocational College, Huang Chenliang, Senior Engineer and other leading experts first went to Zhengsai Repair Headquarters. Wang Fuzhou, the chief engineer of Zhengsai Repair, made an overall introduction to Zhengsai Repair Technology Co.

Zheng Sai Repair Technology Co., Ltd, a technology consulting company, was established in 2007, is a high-tech enterprise with the main focus on scientific and technological research and development, technological innovation, and the team is composed of personnel from European and American multinational companies technical background. Based on the international frontier, we focus on water and sand damage management, sealing protection, soil and water conservation, solid waste comprehensive utilization, and help carbon peaks and carbon neutrality. We provide R&D, consulting, training, production, construction and result-oriented integrated technical service company.

Since its establishment, the company has obtained nearly 30 invention and utility model patents, published 10 academic papers at home and abroad, edited and participated in more than 20 national standards and specifications, filling the market gaps, making up for the shortcomings of traditional technology, and creatively solving the problems in the fields of environmental treatment and engineering construction with high cost performance, which is highly recognized by the society and the industry. After the 720 heavy rainstorm in Henan, ZhengSai repair and maintenance according to their technical characteristics, years of engineering practice, re-compose the company's vision: let the Yellow River become a clear river; let the desert become an oasis;

Let the city not leak; let the road not collapse;

Let the roofs become farms; let the mines become green.

After that, the delegation went to Gongyi Yan Yue ancient city by car to investigate the effect of repairing and re-greening the high slopes on both sides of National Highway 304 after 720 water damage by using Zheng Sai's soil rock formation technology. It was found that the slope after repair had been lushly vegetated, and then the pressure water of 260 bar was used to simulate 720 heavy rainstorm for high flow flushing, and it was found that the surface of sprayed rock-forming soil mix flowed down with clear water, while the surface of unsprayed rock-forming soil mix formed mud flowing down quickly.

The delegation also visited the construction site of a hill behind the resettlement house in Xiaoguan Township, Gongyi, which is being protected with fluid rock-forming cement. The soil-forming technology is used to strengthen and protect the mountain, which is made from local materials, and the soil is mixed with soil-forming agent and sprayed onto the mountain to improve the strength and impermeability of the mountain surface, reduce the scouring of the mountain by rainwater, avoid the formation of secondary disasters such as mudslides, and at the same time, green plants can be grown to play the effect of green carbon sink, replacing the original spraying concrete and slurry masonry process, which greatly reduces the construction The construction cost and construction period are greatly reduced.

The delegation visited the fourth-generation forest park building built with the redundant reliability concept of Zheng Sai Repair, which abandoned the concept of roof waterproofing based on membrane and replaced it with the concept of impermeable P30 structural self-waterproofing, supplemented by flexible coating waterproofing, extreme toughness set up, greatly improving the reliability and durability of waterproofing. On this basis, presenting sky gardens and roof farms to reduce the occurrence of leakage and meet people's desire for a better life.

The delegation also went to Shangjie Country Park to examine the weather resistance experiment of Zheng Sai Repair's permeable pavement and elastic permeable pavement made of red mud and iron tailing powder and urban renewal series technology.

Subsequently, we visited the slope protection site in Alpine to verify the construction in April 2021. The site saw that the slope constructed with soil-forming technology had experienced five heavy rains last year, including the 720 mega rainstorm, and still remained unharmed, and now herbaceous plants have grown and are vibrant. The site also saw a mountain using another colorless transparent protective agent for spraying reinforcement protection, which also experienced the test of last year's heavy rain without collapsing, while the area without treatment collapsed seriously.

The delegation finally inspected the kiln of the B&B treated with Cheng Sai's moisture and seepage resistance and condensation protection technology, and felt that the interior of the kiln was very dry without too much moisture.

The delegation also went to Mugou to inspect the road constructed by Chengsai soil. The road adopts the soil on site and adds the soil rock-forming agent. After rolling 15cm thickness, it is high strength and high permeability, and can bear 30 tons of vehicle load, which is suitable for the water-stable layer and roadbed of municipal roads, and rural roads and high-standard farmland infrastructure.

Finally, the delegation also inspected the test site of non-excavation repair technology for pipelines repaired by Zheng Sai.

After the visit, the delegation was highly affirmed the scientific research and innovation achievements of Zheng Sai Repair, and decided to cooperate deeply in the next step, and dedicate themselves together for the prosperity of science and technology.