Introduction to LJP® Synthetic Polymer Dam Coatings
发布：2017-01-03 Source: Website release: 2017-01-03
LJP is a special coating specially researched and developed by our factory for the difficulty of seepage pit seepage of water conservancy dams. In the early 1970s, after the concept of roller compacted concrete was first proposed by foreign scholars, the international concrete compacted dam project emerged as the times require. In particular, China is rich in water resources. According to China's national conditions, scholars and experts in the water conservancy and hydropower industries have continuously innovated, explored, and practiced the technology of roller compacted concrete dam construction, creating the world's highest record for concrete dam construction: the largest number, the highest dam body, and the largest dam body thin. Occupied the commanding heights of dam building technology in the world. It can be said that China's comprehensive dam building technology is the world's "aircraft carrier".
However, if you look at the application of concrete dam construction technology, you will find that in the process of paving roller compacted concrete and layer-by-layer construction (0 meters to hundreds of meters), due to the multi-type and "army" cooperation in the roller compacted layer, During the operation, it is inevitable that there will be errors in the rolling between layers, which will cause a seepage channel to exist between the layers of the RCC dam. It also leaves infiltration after-effects for the later storage of the dam. Therefore, the auxiliary anti-seepage of the dam's waterfront, especially the flexible anti-seepage, is of epoch-making significance today when water resources are increasingly becoming a part of strategic energy.
As a theory and practice, although from the 1970s to the 1980s, many water conservancy experts, scholars, and design directors made some suggestions, explorations, and practices to assist in seepage prevention. However, due to a variety of complex factors, it failed to become a climate. . Always taking this theory and practice of auxiliary anti-seepage as an advanced productivity and spare no effort to promote it is our consultant unit of China Water Conservancy Group, Chengdu Survey and Design Institute. The unit set up Mr. Zhong Yongjiang, Mr. Chen Qiuhua and others with great courage, and first applied this auxiliary anti-seepage theory and practice to the National Ninth Five-Year Key Project—Shapai Dam Project, which achieved very good results. It has been used since 1999, and in the past ten years, this auxiliary anti-seepage effect is very promising. With the deepening of water conservancy construction and development, dam seepage prevention has been mentioned by many people of insight as an important agenda.
In response to this theoretical and practical application, our factory has been committed to the development and development of LJP flexible impervious materials since the mid-to-late 1980s. This product is synthesized from a variety of polymer materials. And it has been applied to Tongjiezi Power Station, Amuka Power Station, Longyangxia Power Station in Qinghai, Bikou Power Station in Gansu, and Chongqing Yong Power Station (designed by the French). Especially in Xi'an, Jilin, and Gansu regions, they have withstood the low temperature of -48 degrees Celsius and the high temperature contrast of 38 degrees Celsius, and various performance indicators of this product remain good.
In recent years, due to the promotion and application of this theory and practice, the momentum is very promising, and our products have been applied to dam projects. For example: Shapai Hydropower Station Project, Longxi Luohekou Hydropower Station Project, Gansu Longshou Hydropower Station Project, Guangdong Shaoguan Yangxi Hydropower Station Project, Hubei Xuanmiaoguan Hydropower Station Project, Anhui Liuli Hydropower Station Project, etc. Each design institute also successively designs our products. The design institutes that design our products are: Chengdu Survey and Design Research Institute, Southwest Design Institute, Northwest Survey and Design Institute, Central-South Survey and Design Institute, Shenzhen Hydropower Design Institute, Tianjin Water Design Institute, Anhui Water Design Institute, Guangdong Water Design Institute, and also Designed by the Hubei Design Institute in the Zhaolai River Project. Chengdu Research Institute was designed in Pakistan's century-old dam project in Sichuan Jiangyou Wudu Hydropower Station Project, Northwestern Design Institute in Cambodia Hydropower Project and Mongolia Hydropower Project.
In practical application, this product has demonstrated excellent resistance to blisters and weathering, and has high bonding strength, high impermeability, and excellent elongation. It fully meets the requirements of anti-seepage and anti-seepage for making up the cracks on the water front of the dam. The biochemical maturity of the auxiliary dam has reached the design life.
This product has won the second prize of the Sichuan Provincial People's Government, the Sichuan Science and Technology Achievement Award, and the National Star Fire Project Gold Award. At present, this product has become a well-known brand in the hydropower industry.
After 2004, in view of the rapid development of water conservancy dams, especially the trend of dams being built higher and higher, the larger and larger the trend, the higher the requirements for anti-seepage and anti-seepage indicators. Under the guidance of relevant scientific research units, based on the needs of the hydropower industry and based on extensive consultation, we have improved a number of technical indicators on the basis of the original "LJP" dam special coatings, so that the "LJP" dam special coatings are more perfect. More professional and authoritative.
In short, the times are developing, science is advancing, and impervious coatings are also required to be better, more perfect, and more in demand. We welcome every customer--God to the factory, to the company to inspect, to personally guide.
Due to the benefits of the well-known LJP brand, many unscrupulous manufacturers have used fake and shoddy products for dam projects, and the fake "LJP" has been introduced to the market. Therefore, please look for "LJP®" and beware of counterfeiting.
If you need detailed information, please contact the company, and the telephone number is: (028) 82589305 13881820543
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