Artificial Lake Anti-seepage Combination Recommendation - Composite Geomembrane and Bentonite Waterproof Blanket
At present, most of the artificial landscape lakes, rivers, swimming pools and landscaped pools have leakage problems. The loss of landscape water causes the later greening to be unsightly, the water quality treatment cannot be improved, and other surrounding buildings are affected. Developers are a problem.
The artificial lake is complex in structure and has various shapes. Generally, there are curved river channels, protruding piers, artificial islands with different shapes, irregular stone retaining walls, different landscape revetments, and landscape garden anti-seepage as rigid waterproof. Due to the uneven settlement of the foundation, cracking and leakage are caused, the anti-seepage effect cannot be achieved, and the cost is high and the construction period is long. So how to solve the leakage problem of landscape lake or artificial lake? The composite geomembrane and bentonite waterproof blanket are a combination!
The composite geomembrane is a water-impermeable material made of geotextile and geomembrane composite. It is mainly used for anti-seepage. The composite geomembrane is divided into a film and a film, a width of 4-6m and a weight of 200- 1500g/m2, high physical and mechanical properties such as tensile strength, tear resistance and bursting, can meet the needs of civil engineering such as water conservancy, municipal, construction, transportation, subway, tunnel, etc. Because of its selection of polymer materials and the addition of production technology Anti-aging agent, so it can be used in unconventional temperature environment.
Bentonite waterproof blanket is a new type of composite impervious material. Bentonite has good cohesiveness and swelling. The internal structure is a layer of non-woven fabric. After water absorption, it expands into a limited space to form a tight colloid, thus achieving water stoppage. effect. Because of its excellent characteristics, it has also been listed as the first choice for ecological pool waterproof materials. The material is a blanket waterproofing membrane made by mixing the natural sodium-based bentonite particles and corresponding admixtures into raw materials, and fixing the bentonite particles between the geotextile and the plastic woven fabric through a needle punching process and equipment. . The bentonite waterproof blanket has all the characteristics of geotechnical materials and excellent waterproof (permeability) properties. The mineralogical name of bentonite is montmorillonite, and natural bentonite is mainly divided into sodium and calcium based on chemical composition. Bentonite has the property of swelling with water. When calcium-based bentonite expands, its expansion is only about 3 times its own volume, while sodium-based bentonite absorbs five times its own weight when it meets water, and expands to 15-17 times or more. The sodium bentonite is locked in the middle of two layers of geosynthetic materials to protect and strengthen the GCL to have a certain overall shear strength. The bentonite particles swell with water to form a uniform colloidal system. Under the restriction of two layers of geotextiles, the bentonite is changed from disorder to ordered expansion. The result of continuous water absorption expansion is to make the bentonite layer itself dense, thus having Waterproof.
Composite geomembrane is widely used in channel seepage prevention projects. In recent years, the extensive application and effectiveness of geosynthetics in civil engineering, especially in flood control and rescue projects, has attracted the attention of engineers and technicians. For the application technology of geosynthetics, the state has put forward normative technical requirements from the aspects of anti-seepage, anti-filtration, drainage, reinforcement, protection, etc., which has greatly accelerated the promotion and application of new materials. The material has been widely used in the seepage prevention project of irrigation area, and combined with construction practice, the application technology of composite geomembrane is discussed.
The composite geomembrane (composite anti-seepage film) is divided into a cloth one film and two cloth one film, the width is 2m-6m, the weight is 200g1500g/m2, and the physical and mechanical properties such as tensile, tear resistance and bursting are high. The product has the characteristics of high strength, good elongation performance, large deformation modulus, acid and alkali resistance, corrosion resistance, aging resistance and good anti-seepage performance. It can meet the needs of civil engineering such as anti-seepage, isolation, reinforcement, anti-cracking and reinforcement in water conservancy, municipal, construction, transportation, subway, tunnel and engineering construction. It is often used for anti-seepage treatment of dams and drainage ditches, as well as anti-fouling treatment of waste yards.
