Height: 3, convex type H8mm H12mm, H16mm, H20mm, H30mm.

Technical parameters of plastic drainage boards

1. Thickness deviation -2%

2. Compressive strength: 300Kpa

The longitudinal water flow rate is 11 cubic centimeters

4. Tensile strength: 450N

5. Elongation at break: 40%

6. Right-angle tearing strength: 125N

7. Puncture resistance strength: 330N

8. Carbon black content: 2%

The laying requirements for plastic drainage boards: The drainage boards have a hollow layout with raised platforms on the flat surface. Geotextiles and geotextiles are laid on top to form a drainage space in the interlayer. Rainwater enters the drainage space in the interlayer from the geotextiles and is discharged rapidly, greatly eliminating the phenomenon of still water accumulation in the waterproof layer. Through automatic drainage, the waterproofing effect can be achieved.

Weather requirements for laying plastic drainage boards:

The temperature should generally be above ten degrees Celsius.

Wind force should be below level four.

When the temperature is too low, or during strong winds of force 4 or above and rainy or snowy weather, it is generally not recommended to carry out construction and laying.

4. In windy weather, when the wind force affects the laying of drainage boards, the drainage boards to be welded should be firmly pressed down with sandbags.

Laying steps for plastic drainage boards on the basement roof:

Clear the garbage at the laying site, level with cement to ensure there are no obvious concave or convex areas on the site. The outdoor garage roof and roof garden need to have a 2-5‰ slope.

2. Roof greening and outdoor garage roof greening can be used with multi-hole seepage pipes. This way, the water discharged from the waterproof drainage board of the basement roof can be collected and discharged into the nearby sewer pipe or the nearby urban sewer.

3. To prevent water seepage on the basement floor, a suspended floor is built above the foundation. That is, a layer of drainage board is made before the floor is constructed, with the circular support point pointing downward and blind ditches left around it. This prevents groundwater from rising, and the seepage naturally flows through the space of the drainage board into the blind ditches around it, and then through the blind ditches into the sump.

4. To prevent water seepage in the interior walls of the basement, drainage boards can be laid on the main wall of the building, with the circular support points facing the main wall. A single wall or steel wire mesh powder cement can be built outside the waterproof drainage board on the basement roof to protect the drainage board, allowing the seepage water outside the wall to flow downward into the blind ditch until the sump.

5. When laying drainage boards in any area, it is necessary to pay attention to not allowing soil, cement, yellow sand and other garbage to enter the front space of the drainage boards, ensuring that the space of the drainage boards is unobstructed.

6. When laying the waterproof and drainage board for the basement roof, protective measures should be taken as much as possible. When laying the waterproof and drainage board for the basement roof on the floor or in the outdoor garage, the backfilling soil work should be done as soon as possible to prevent strong winds from disrupting the drainage board and affecting the laying quality. The waterproofing of the basement and interior walls should be done with protective layers as soon as possible to prevent the waterproof drainage board of the basement roof from being damaged by people or objects.

In anti-seepage projects, how should the thickness of geomembranes be selected? There is no doubt that the thicker the better, but at the same time, the cost will increase. The thinner the geomembrane, although it can reduce the cost, it cannot meet the needs of the project. Therefore, choosing the appropriate thickness of geomembrane can not only meet the needs of the project but also achieve the purpose of cost reduction. The selection of thickness should be made with caution and should be tailored to the requirements of the project for the geomembrane. The thickness of general geomembranes should not be less than 0.5mm. For some important projects with higher requirements, the thickness should be appropriately increased. In the actual operation of the project, it is necessary to entrust relevant testing centers to test the materials to verify whether the quality of the geomembrane produced by the manufacturer is reliable, providing a basis for choosing safe, reliable and economical materials. The application environment of geomembrane is that it is buried underground all year round, so it is required to have good anti-aging and anti-decomposition capabilities, and also be able to effectively resist the puncture of plant roots. For geomembranes that work in complex underwater environments, they should also have good resistance to acid and alkali corrosion. Through the above explanation, you should have understood the selection method of the thickness of the geomembrane. At the same time, it is necessary to pay attention to avoiding uncivilized construction during construction. If it is applied in a complex environment, a composite geomembrane with geotextiles on both sides can be chosen to prevent sharp objects from damaging and damaging the membrane material. There are many types of geomembranes. Only by choosing the appropriate geomembrane can a better anti-seepage effect be achieved, the service life of the geomembrane be prolonged, and the construction and maintenance costs of hydraulic projects be reduced.

Geomembrane, also known as anti-seepage membrane or waterproof board, is commonly referred to as waterproof board when the thickness is greater than or equal to 0.8mm, and anti-seepage membrane when the thickness is less than 0.8mm. Both are anti-seepage materials made from high-molecular polymers as the basic raw material and are divided into homogeneous waterproof board and composite waterproof board. Its main function is to prevent the leakage of liquids and the evaporation of gases. The raw materials generally include: low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), high-density polyethylene (HDPE), ethylene/vinyl acetate copolymer (EVA), polyvinyl chloride (PVC), ethylene-vinyl acetate modified asphalt (ECB), etc. The main role of geomembrane in rock engineering is to prevent seepage and isolation, but it also serves to reinforce and protect. It is mainly applied in the anti-seepage of projects such as earth-rock DAMS, rockfill DAMS, masonry DAMS, concrete DAMS, tailings DAMS, sewage reservoir DAMS, channels, and liquid storage tanks. Waterproofing linings for subways, basements and tunnels; Anti-seepage of highway and railway foundations It is used in conjunction with geotextile materials such as long-fiber geotextiles and bentonite waterproof blankets in sanitary landfill sites, etc.

Production specifications: The standard width is 6 meters and the length is 50 meters (customization is also available based on customer requirements). The thickness can be produced within the range of 0.5mm to 3.0mm, and the price ranges from 3.3 yuan to 27 yuan per square meter. Shandong Dezhou Geosynthetics Manufacturer Geosynthetics Co., Ltd. welcomes your visit! ~

Long-fiber geotextiles feature high strength, light unit weight, strong water permeability, and the ability to separate soil and stone materials of different properties or gradations to prevent mutual mixing. And it can discharge the seepage water along the perpendicular or parallel fabric plane from the soil. These functions and characteristics can overcome or improve the shortcomings or deficiencies of traditional materials. The project cost is low. Therefore, for the urgent project of renovating cement and asphalt topcoats, during the implementation process, the full paving or joint paving plan can be determined based on the road conditions of the old road.

Composite geomembrane is widely used in channel anti-seepage projects. In recent years, the extensive application and achievements of geosynthetic materials in civil engineering, especially in flood control and emergency rescue projects, have been adopted by a large number of engineering and technical personnel. For the application technology of geosynthetic materials, normative technical requirements have been put forward from aspects such as anti-seepage, reverse filtration, drainage, reinforcement and protection, which has greatly accelerated the pace of promotion and application of new materials. This material has been widely used in the anti-seepage projects of irrigation district channels. Combined with construction practice, this paper briefly discusses the application technology of composite geomembrane.

Composite geomembrane is an impermeable material made by combining geotextile and geomembrane. It is mainly used for anti-seepage. Composite geomembrane is divided into one fabric and one membrane and two fabrics and one membrane, with a width of 4-6m and a weight of 200-1500g/m2. It has high physical and mechanical performance indicators such as tensile strength, tear resistance and puncture resistance. It can meet the needs of civil engineering projects such as water conservancy, municipal works, construction, transportation, subways and tunnels. Because it is made of polymer materials and anti-aging agents are added in the production process, it can also be used in unconventional temperature environments.

相关内容推荐：