Drainage panels are made of polystyrene (HIPS) or polyethylene (HDPE) plastic base panels punched into conical protrusions or stiffening ribs (or hollow cylindrical porous) with a width of 3 meters and a length of 10 meters or 15 meters. A layer of filter geotextile is glued on the top of conical protrusion platform to prevent the passage of soil particles, thus avoiding the blockage of drainage channels and making the drainage smooth. Traditional drainage methods use brick and tile as filter layer, more pebbles or gravel as filter layer, and drain water to designated sites. It is time-saving, labor-saving, energy-saving, investment-saving and load-reducing to replace the cobblestone filter layer with drainage plate.
Classification of drainage panels:
Drainage panels are divided into two series of coils and sheets, in which coils are divided into "hot melt" and "lap" and "self-sticking" three types. The plastic sheets are extruded from the closed convex cylindrical shell by special technology in the shape, forming concave-convex film, continuous shell, having three-dimensional space and certain support height. Butyl rubber strips are hot-bonded on the edge of the shell during processing and production, and the top of the shell is covered with geotextile filter layer for seepage. Water, hydrophobic, drainage and storage products. Also known as: self-adhesive PE drainage board, drainage board, drainage protection board, filter board, plastic concave-convex drainage board, plastic sandwich board.
Major Classifications
The common drainage boards used in construction are: self-adhesive PE drainage board, plastic drainage board, storage drainage board, coil drainage board, and waterproof.
Seepage drainage plate, composite drainage plate, stereoscopic drainage plate, sheet drainage plate, etc.
Scope of application of drainage plate:
Greening project: garage roof greening, roof garden, vertical greening, inclined roof greening, football field, golf course.
Municipal Engineering: Airport, Road Subgrade, Subway, Tunnel, Landfill.
Architectural engineering: building foundation or lower floor, basement interior and exterior walls and floor, roof, roof impervious and insulation layer, etc.
Water Conservancy Project: Reservoir anti-seepage water, reservoir, artificial lake anti-seepage water.
Traffic engineering: highway, railway subgrade, embankment and slope protection.
1. Clean up the rubbish and cement leveling at the paving site so that there is no obvious concave and convex place on the site. The outdoor garage roof and roof garden need 2-5
2. Use it to centralize the water discharged from the drainage board into the nearby sewer or the nearby urban sewer.
3. Ground water seepage prevention in basement, overhead floor above the foundation, that is, a layer of drainage board is made before the floor is made. The round platform is downward, and blind ditches are left around, so that groundwater can not come up. Seepage naturally flows into the surrounding blind ditches through the space of drainage board, and then into the catchment pit through blind ditches.
4. Seepage-proof basement walls can be paved with drainage boards on the main wall of the building, and the round protruding platform is facing the main wall. A single wall is built outside the drainage board or steel mesh powder cement is used to protect the drainage board, so that the space of the seepage board outside the wall directly flows downward into the blind ditch to the catchment pit.
5. In laying drainage boards in any area, we must pay attention to: do not let mud, cement, yellow sand and other garbage into the front space of drainage boards, to ensure the smooth space of drainage boards.
6. When the drainage board is laid, protective measures should be taken as far as possible. When laying the drainage board in the level or outdoor garage, the backfill work should be done as soon as possible to prevent the wind from disturbing the drainage board and affecting the laying quality. The basement and inner wall waterproofing should be well protected as soon as possible to prevent the drainage board from being damaged by people or objects.
7. Backfill is cohesive soil. It is ideal to lay 3-5 cm yellow sand on geotextiles, which is beneficial to the filtration of geotextiles. If backfill is a kind of nutritive soil or light soil, there is no need to lay another layer of yellow sand. This kind of soil itself is very loose and easy to filter water.
8. When the drainage board is laid, the next 1-2 fulcrums are laid on the side and right, or two bottom boards can be collided. The above boards can be overlapped by geotextiles, so long as no soil enters the drainage channel of the drainage board, the drainage can be maintained smoothly.
