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With China Plastic Machinery
With China Plastic Machinery
Plastic drainage board is made of polystyrene (HIPS) or polyethylene (HDPE) plastic base plate, which is stamped into conical bosses or convex points with stiffening ribs (or hollow cylindrical porous). After continuous innovation and research and development, the raw materials have been greatly improved and changed. It is now pressed from polyvinyl chloride (PVC) as the raw material, and the compressive strength and overall flatness have been greatly improved. The width is 1~3 meters and the length is 4~10 meters or more.
A layer of filtering geotextile is glued to the top surface of the conical boss to prevent soil particles from passing through, thereby avoiding blockage of the drainage channel and making the channel drain smoothly. The traditional drainage method uses bricks and tiles as the filter layer, uses more pebbles or gravel as the water filter layer, and drains the water to the designated location. Using drainage board instead of pebble water filter layer to drain water saves time, labor, energy, investment, and reduces the load of the building.
A good drainage system plays an important role in the construction period of civil engineering and the normal use and life of the structure. The drainage board and the porous seepage pipe form an effective drainage system, and the cylindrical porous drainage board and the geotextile also form a drainage system, thus forming a system with seepage, water storage and drainage functions.
Plastic drainage boards are divided into two series: coils and sheets. In terms of modeling, a special process is used to press the plastic sheet into a closed and raised columnar shell to form a concave-convex membrane. The shell is continuous, has a three-dimensional space and a certain support height. The edge is hot-glued with butyl rubber strips during processing and production, and the top of the shell is covered with a geotextile filter layer. It is a product used for seepage, drainage, drainage and water storage. It is also called: overlap adhesive drainage board, drainage board, drainage protection board, water filter board, plastic concave-convex drainage board, plastic sandwich board. The product specifications are divided into square greening and basement use, with H20 and H25 specifications for selection.
The commonly used drainage boards in construction are: plastic drainage boards, storage drainage boards, roll drainage boards, anti-seepage drainage boards, composite drainage boards, three-dimensional drainage boards, sheet drainage boards, etc.
The concave and convex hollow rib structure of the drainage protection board can quickly and effectively drain rainwater, greatly reduce or even eliminate the hydrostatic pressure of the waterproof layer, and achieve the effect of active waterproofing through this active water conduction principle.
Waterproof performance: Polyethylene (HDPE) polystyrene (PVC) drainage protection board material itself is a good waterproof material. By adopting a reliable connection method, the drainage board becomes a good auxiliary waterproof material.
The drainage protection board can effectively protect the structure and the waterproof layer, and resist various acids and alkalis in the soil and the root thorns of plants. When the outer wall of the basement is backfilled, it can protect the building and the waterproof layer from damage.
Sound insulation and ventilation and moisture-proof function:
Laboratory data show that polyethylene (HDPE) polyvinyl chloride (PVC) drainage protection board can effectively reduce 14 decibels and 500HZ noise indoors, and has obvious noise reduction and sound insulation functions. When the waterproof water guide board is used on the ground or wall, it can also play a good ventilation and moisture-proof role.
Greening project: garage roof greening, roof garden, vertical greening, inclined roof greening, football field, golf course.
Municipal engineering: airport, road subgrade, subway, tunnel, landfill.
Construction engineering: upper or lower floors of building foundations, internal and external walls and bottom plates of basements, as well as top plates, roof anti-seepage and thermal insulation layers, etc.
Water conservancy projects: reservoir anti-seepage, reservoir, artificial lake anti-seepage.
Transportation engineering: highway, railway subgrade, embankment and slope protection layer.
1. Clean up the garbage at the laying site, level the cement, and make sure there are no obvious bumps on the site. The outdoor garage roof and roof garden need to have a slope of 2-5бы.
2. The water discharged from the drainage board can be concentrated and drained to the nearby sewer pipe or nearby city sewer.
3. For water seepage prevention on the basement floor, a floor is built on the foundation, that is, before making the floor, a layer of drainage board is made, with the round protrusion facing downward and blind ditches left around, so that groundwater cannot come up, and the seepage water naturally flows through the space of the drainage board into the surrounding blind ditches, and then flows into the sump through the blind ditches.
4. For water seepage prevention on the inner wall of the basement, the drainage board can be laid on the main wall of the building, with the round protrusion facing the main wall. Build a single wall outside the drainage board or use wire mesh powder cement to protect the drainage board, so that the space of the seepage board outside the wall flows directly downward into the blind ditch and directly to the sump.
5. When laying drainage boards in any area, it is important to note that dirt, cement, sand and other garbage should not enter the front space of the drainage board to ensure that the space of the drainage board is unobstructed.
6. When laying drainage boards, take protective measures as much as possible. When laying drainage boards on the ground or in outdoor garages, backfill soil should be done as soon as possible to prevent strong winds from blowing the drainage boards and affecting the laying quality. The basement and interior wall waterproofing should be made into a protective layer as soon as possible to prevent the drainage board from being damaged by people or objects.
7. The backfill soil is clay soil. It is ideal to lay 3-5 cm of sand on the geotextile, which is conducive to the water filtration of the geotextile. If the backfill soil is a nutrient soil or lightweight soil, there is no need to lay another layer of sand. This kind of soil is loose and easy to filter water.
8. When laying the drainage board, overlap the sides with 1-2 fulcrums, or you can align the two bottom plates and overlap them with geotextiles. As long as there is no soil entering the drainage channel of the drainage board, the drainage can be kept unobstructed.
1. Please store the drainage board in a dry and ventilated environment, avoid exposure to the sun, and keep away from fire.
2. Please place the drainage protection board upright or flat, and do not tilt or cross-press it horizontally. The stacking height should not exceed 3 layers, and heavy objects cannot be piled.
3. When laying, it should be flat and natural, and laid along the slope or according to the direction of water flow.
4. When laying geotextile alone, the overlap should be 150cm. The overlap should be compacted with glue or sand to prevent movement, and then backfilled. The first layer of backfill soil must be compacted before proceeding to the next step. The layered backfill must be compacted.
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